Linus Torvalds [Tue, 17 Dec 2019 21:27:02 +0000 (13:27 -0800)]
Merge tag 'for-5.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A mix of regression fixes and regular fixes for stable trees:
- fix swapped error messages for qgroup enable/rescan
- fixes for NO_HOLES feature with clone range
- fix deadlock between iget/srcu lock/synchronize srcu while freeing
an inode
- fix double lock on subvolume cross-rename
- tree log fixes
* fix missing data checksums after replaying a log tree
* also teach tree-checker about this problem
* skip log replay on orphaned roots
- fix maximum devices constraints for RAID1C -3 and -4
- send: don't print warning on read-only mount regarding orphan
cleanup
- error handling fixes"
* tag 'for-5.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: send: remove WARN_ON for readonly mount
btrfs: do not leak reloc root if we fail to read the fs root
btrfs: skip log replay on orphaned roots
btrfs: handle ENOENT in btrfs_uuid_tree_iterate
btrfs: abort transaction after failed inode updates in create_subvol
Btrfs: fix hole extent items with a zero size after range cloning
Btrfs: fix removal logic of the tree mod log that leads to use-after-free issues
Btrfs: make tree checker detect checksum items with overlapping ranges
Btrfs: fix missing data checksums after replaying a log tree
btrfs: return error pointer from alloc_test_extent_buffer
btrfs: fix devs_max constraints for raid1c3 and raid1c4
btrfs: tree-checker: Fix error format string for size_t
btrfs: don't double lock the subvol_sem for rename exchange
btrfs: handle error in btrfs_cache_block_group
btrfs: do not call synchronize_srcu() in inode_tree_del
Btrfs: fix cloning range with a hole when using the NO_HOLES feature
btrfs: Fix error messages in qgroup_rescan_init
Linus Torvalds [Tue, 17 Dec 2019 21:10:11 +0000 (13:10 -0800)]
early init: fix error handling when opening /dev/console
The comment says "this should never fail", but it definitely can fail
when you have odd initial boot filesystems, or kernel configurations.
So get the error handling right: filp_open() returns an error pointer.
Reported-by: Jesse Barnes <jsbarnes@google.com>
Reported-by: youling 257 <youling257@gmail.com>
Fixes: 8243186f0cc7 ("fs: remove ksys_dup()")
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 17 Dec 2019 21:08:41 +0000 (13:08 -0800)]
Merge tag 'regulator-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A small set of fixes for mostly minor issues here, the only real code
ones are Wen Yang's fixes for error handling in the core and Christian
Marussi's list_voltage() change which is a fix for disruptively bad
performance for regulators with continuous voltage control (which are
rare)"
* tag 'regulator-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: rn5t618: fix module aliases
regulator: max77650: add of_match table
regulator: core: avoid unneeded .list_voltage calls
regulator: s5m8767: Fix a warning message
regulator: core: fix regulator_register() error paths to properly release rdev
regulator: fix use after free issue
Linus Torvalds [Tue, 17 Dec 2019 21:06:31 +0000 (13:06 -0800)]
Merge tag 'spi-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A relatively large set of fixes here, the biggest part of it is for
fallout from the GPIO descriptor rework that affected several of the
devices with usable native chip select support. There's also some new
PCI IDs for Intel Jasper Lake devices.
The conversion to platform_get_irq() in the fsl driver is an
incremental fix for build errors introduced on SPARC by the earlier
fix for error handling in probe in that driver"
* tag 'spi-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fsl: use platform_get_irq() instead of of_irq_to_resource()
spi: nxp-fspi: Ensure width is respected in spi-mem operations
spi: spi-ti-qspi: Fix a bug when accessing non default CS
spi: fsl: don't map irq during probe
spi: spi-cavium-thunderx: Add missing pci_release_regions()
spi: sprd: Fix the incorrect SPI register
gpiolib: of: Make of_gpio_spi_cs_get_count static
spi: fsl: Handle the single hardwired chipselect case
gpio: Handle counting of Freescale chipselects
spi: fsl: Fix GPIO descriptor support
spi: dw: Correct handling of native chipselect
spi: cadence: Correct handling of native chipselect
spi: pxa2xx: Add support for Intel Jasper Lake
Darrick J. Wong [Wed, 11 Dec 2019 21:19:07 +0000 (13:19 -0800)]
xfs: fix log reservation overflows when allocating large rt extents
Omar Sandoval reported that a 4G fallocate on the realtime device causes
filesystem shutdowns due to a log reservation overflow that happens when
we log the rtbitmap updates. Factor rtbitmap/rtsummary updates into the
the tr_write and tr_itruncate log reservation calculation.
"The following reproducer results in a transaction log overrun warning
for me:
mkfs.xfs -f -r rtdev=/dev/vdc -d rtinherit=1 -m reflink=0 /dev/vdb
mount -o rtdev=/dev/vdc /dev/vdb /mnt
fallocate -l 4G /mnt/foo
Reported-by: Omar Sandoval <osandov@osandov.com>
Tested-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Linus Torvalds [Tue, 17 Dec 2019 19:17:03 +0000 (11:17 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Fix kexec booting with certain EFI memory map layouts"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
Linus Torvalds [Tue, 17 Dec 2019 19:11:08 +0000 (11:11 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Add HPET quirks for the Intel 'Coffee Lake H' and 'Ice Lake' platforms"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel: Disable HPET on Intel Ice Lake platforms
x86/intel: Disable HPET on Intel Coffee Lake H platforms
Linus Torvalds [Tue, 17 Dec 2019 19:09:05 +0000 (11:09 -0800)]
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix the guest-nice cpustat values in /proc"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime, proc/stat: Fix incorrect guest nice cpustat value
Linus Torvalds [Tue, 17 Dec 2019 19:03:57 +0000 (11:03 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Ingo Molnar:
"These are all perf tooling changes: most of them are fixes.
Note that the large CPU count related fixes go beyond regression
fixes, but the IPI-flood symptoms are severe enough that I think
justifies their inclusion"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
perf vendor events s390: Remove name from L1D_RO_EXCL_WRITES description
perf vendor events s390: Fix counter long description for DTLB1_GPAGE_WRITES
libtraceevent: Allow custom libdir path
perf header: Fix false warning when there are no duplicate cache entries
perf metricgroup: Fix printing event names of metric group with multiple events
perf/x86/pmu-events: Fix Kernel_Utilization metric
perf top: Do not bail out when perf_env__read_cpuid() returns ENOSYS
perf arch: Make the default get_cpuid() return compatible error
tools headers kvm: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h headers
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
perf inject: Fix processing of ID index for injected instruction tracing
perf report: Bail out --mem-mode if mem info is not available
perf report: Make -F more strict like -s
perf report/top TUI: Replace pr_err() with ui__error()
libtraceevent: Copy pkg-config file to output folder when using O=
libtraceevent: Fix lib installation with O=
perf kvm: Clarify the 'perf kvm' -i and -o command line options
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
perf beauty: Add CLEAR_SIGHAND support for clone's flags arg
...
Linus Torvalds [Tue, 17 Dec 2019 19:00:46 +0000 (11:00 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"Tone down mutex debugging complaints, and annotate/fix spinlock
debugging data accesses for KCSAN"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "locking/mutex: Complain upon mutex API misuse in IRQ contexts"
locking/spinlock/debug: Fix various data races
Linus Torvalds [Tue, 17 Dec 2019 18:39:55 +0000 (10:39 -0800)]
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
"Protect presistent EFI memory reservations from kexec, fix EFIFB early
console, EFI stub graphics output fixes and other misc fixes."
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Don't attempt to map RCI2 config table if it doesn't exist
efi/earlycon: Remap entire framebuffer after page initialization
efi: Fix efi_loaded_image_t::unload type
efi/gop: Fix memory leak in __gop_query32/64()
efi/gop: Return EFI_SUCCESS if a usable GOP was found
efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs
efi/memreserve: Register reservations as 'reserved' in /proc/iomem
Jason A. Donenfeld [Tue, 17 Dec 2019 17:24:55 +0000 (18:24 +0100)]
random: don't forget compat_ioctl on urandom
Recently, there's been some compat ioctl cleanup, in which large
hardcoded lists were replaced with compat_ptr_ioctl. One of these
changes involved removing the random.c hardcoded list entries and adding
a compat ioctl function pointer to the random.c fops. In the process,
urandom was forgotten about, so this commit fixes that oversight.
Fixes: 507e4e2b430b ("compat_ioctl: remove /dev/random commands")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20191217172455.186395-1-Jason@zx2c4.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Borkmann [Tue, 17 Dec 2019 12:28:16 +0000 (13:28 +0100)]
bpf: Fix cgroup local storage prog tracking
Recently noticed that we're tracking programs related to local storage maps
through their prog pointer. This is a wrong assumption since the prog pointer
can still change throughout the verification process, for example, whenever
bpf_patch_insn_single() is called.
Therefore, the prog pointer that was assigned via bpf_cgroup_storage_assign()
is not guaranteed to be the same as we pass in bpf_cgroup_storage_release()
and the map would therefore remain in busy state forever. Fix this by using
the prog's aux pointer which is stable throughout verification and beyond.
Fixes: de9cbbaadba5 ("bpf: introduce cgroup storage maps")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/1471c69eca3022218666f909bc927a92388fd09e.1576580332.git.daniel@iogearbox.net
Roman Penyaev [Tue, 17 Dec 2019 15:54:07 +0000 (16:54 +0100)]
block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT
Non-mq devs do not honor REQ_NOWAIT so give a chance to the caller to repeat
request gracefully on -EAGAIN error.
The problem is well reproduced using io_uring:
mkfs.ext4 /dev/ram0
mount /dev/ram0 /mnt
# Preallocate a file
dd if=/dev/zero of=/mnt/file bs=1M count=1
# Start fio with io_uring and get -EIO
fio --rw=write --ioengine=io_uring --size=1M --direct=1 --name=job --filename=/mnt/file
Signed-off-by: Roman Penyaev <rpenyaev@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Suwan Kim [Fri, 13 Dec 2019 02:30:55 +0000 (11:30 +0900)]
usbip: Fix error path of vhci_recv_ret_submit()
If a transaction error happens in vhci_recv_ret_submit(), event
handler closes connection and changes port status to kick hub_event.
Then hub tries to flush the endpoint URBs, but that causes infinite
loop between usb_hub_flush_endpoint() and vhci_urb_dequeue() because
"vhci_priv" in vhci_urb_dequeue() was already released by
vhci_recv_ret_submit() before a transmission error occurred. Thus,
vhci_urb_dequeue() terminates early and usb_hub_flush_endpoint()
continuously calls vhci_urb_dequeue().
The root cause of this issue is that vhci_recv_ret_submit()
terminates early without giving back URB when transaction error
occurs in vhci_recv_ret_submit(). That causes the error URB to still
be linked at endpoint list without “vhci_priv".
So, in the case of transaction error in vhci_recv_ret_submit(),
unlink URB from the endpoint, insert proper error code in
urb->status and give back URB.
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Suwan Kim <suwan.kim027@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20191213023055.19933-3-suwan.kim027@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suwan Kim [Fri, 13 Dec 2019 02:30:54 +0000 (11:30 +0900)]
usbip: Fix receive error in vhci-hcd when using scatter-gather
When vhci uses SG and receives data whose size is smaller than SG
buffer size, it tries to receive more data even if it acutally
receives all the data from the server. If then, it erroneously adds
error event and triggers connection shutdown.
vhci-hcd should check if it received all the data even if there are
more SG entries left. So, check if it receivces all the data from
the server in for_each_sg() loop.
Fixes: ea44d190764b ("usbip: Implement SG support to vhci-hcd and stub driver")
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Suwan Kim <suwan.kim027@gmail.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191213023055.19933-2-suwan.kim027@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Erkka Talvitie [Wed, 11 Dec 2019 08:08:39 +0000 (10:08 +0200)]
USB: EHCI: Do not return -EPIPE when hub is disconnected
When disconnecting a USB hub that has some child device(s) connected to it
(such as a USB mouse), then the stack tries to clear halt and
reset device(s) which are _already_ physically disconnected.
The issue has been reproduced with:
CPU: IMX6D5EYM10AD or MCIMX6D5EYM10AE.
SW: U-Boot 2019.07 and kernel 4.19.40.
CPU: HP Proliant Microserver Gen8.
SW: Linux version 4.2.3-300.fc23.x86_64
In this situation there will be error bit for MMF active yet the
CERR equals EHCI_TUNE_CERR + halt. Existing implementation
interprets this as a stall [1] (chapter 8.4.5).
The possible conditions when the MMF will be active + halt
can be found from [2] (Table 4-13).
Fix for the issue is to check whether MMF is active and PID Code is
IN before checking for the stall. If these conditions are true then
it is not a stall.
What happens after the fix is that when disconnecting a hub with
attached device(s) the situation is not interpret as a stall.
[1] [https://www.usb.org/document-library/usb-20-specification, usb_20.pdf]
[2] [https://www.intel.com/content/dam/www/public/us/en/documents/
technical-specifications/ehci-specification-for-usb.pdf]
Signed-off-by: Erkka Talvitie <erkka.talvitie@vincit.fi>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/ef70941d5f349767f19c0ed26b0dd9eed8ad81bb.1576050523.git.erkka.talvitie@vincit.fi
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
zhong jiang [Fri, 13 Dec 2019 12:16:18 +0000 (20:16 +0800)]
usb: typec: fusb302: Fix an undefined reference to 'extcon_get_state'
Fixes the following compile error:
drivers/usb/typec/tcpm/fusb302.o: In function `tcpm_get_current_limit':
fusb302.c:(.text+0x3ee): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x422): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x450): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x48c): undefined reference to `extcon_get_state'
drivers/usb/typec/tcpm/fusb302.o: In function `fusb302_probe':
fusb302.c:(.text+0x980): undefined reference to `extcon_get_extcon_dev'
make: *** [vmlinux] Error 1
It is because EXTCON is build as a module, but FUSB302 is not.
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1576239378-50795-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Shishkin [Tue, 17 Dec 2019 11:55:27 +0000 (13:55 +0200)]
intel_th: msu: Fix window switching without windows
Commit
6cac7866c2741 ("intel_th: msu: Add a sysfs attribute to trigger
window switch") adds a NULL pointer dereference in the case when there are
no windows allocated:
> BUG: kernel NULL pointer dereference, address:
0000000000000000
> #PF: supervisor read access in kernel mode
> #PF: error_code(0x0000) - not-present page
> PGD 0 P4D 0
> Oops: 0000 1 SMP
> CPU: 5 PID: 1110 Comm: bash Not tainted 5.5.0-rc1+ #1
> RIP: 0010:msc_win_switch+0xa/0x80 [intel_th_msu]
> Call Trace:
> ? win_switch_store+0x9b/0xc0 [intel_th_msu]
> dev_attr_store+0x17/0x30
> sysfs_kf_write+0x3e/0x50
> kernfs_fop_write+0xda/0x1b0
> __vfs_write+0x1b/0x40
> vfs_write+0xb9/0x1a0
> ksys_write+0x67/0xe0
> __x64_sys_write+0x1a/0x20
> do_syscall_64+0x57/0x1d0
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fix that by disallowing window switching with multiwindow buffers without
windows.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 6cac7866c274 ("intel_th: msu: Add a sysfs attribute to trigger window switch")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Ammy Yi <ammy.yi@intel.com>
Tested-by: Ammy Yi <ammy.yi@intel.com>
Cc: stable@vger.kernel.org # v5.2+
Link: https://lore.kernel.org/r/20191217115527.74383-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Shishkin [Tue, 17 Dec 2019 11:55:26 +0000 (13:55 +0200)]
intel_th: Fix freeing IRQs
Commit
aac8da65174a ("intel_th: msu: Start handling IRQs") implicitly
relies on the use of devm_request_irq() to subsequently free the irqs on
device removal, but in case of the pci_free_irq_vectors() API, the
handlers need to be freed before it is called. Therefore, at the moment
the driver's remove path trips a BUG_ON(irq_has_action()):
> kernel BUG at drivers/pci/msi.c:375!
> invalid opcode: 0000 1 SMP
> CPU: 2 PID: 818 Comm: rmmod Not tainted 5.5.0-rc1+ #1
> RIP: 0010:free_msi_irqs+0x67/0x1c0
> pci_disable_msi+0x116/0x150
> pci_free_irq_vectors+0x1b/0x20
> intel_th_pci_remove+0x22/0x30 [intel_th_pci]
> pci_device_remove+0x3e/0xb0
> device_release_driver_internal+0xf0/0x1c0
> driver_detach+0x4c/0x8f
> bus_remove_driver+0x5c/0xd0
> driver_unregister+0x31/0x50
> pci_unregister_driver+0x40/0x90
> intel_th_pci_driver_exit+0x10/0xad6 [intel_th_pci]
> __x64_sys_delete_module+0x147/0x290
> ? exit_to_usermode_loop+0xd7/0x120
> do_syscall_64+0x57/0x1b0
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fix this by explicitly freeing irqs before freeing the vectors. We keep
using the devm_* variants because they are still useful in early error
paths.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: aac8da65174a ("intel_th: msu: Start handling IRQs")
Reported-by: Ammy Yi <ammy.yi@intel.com>
Tested-by: Ammy Yi <ammy.yi@intel.com>
Cc: stable@vger.kernel.org # v5.2+
Link: https://lore.kernel.org/r/20191217115527.74383-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Shishkin [Tue, 17 Dec 2019 11:55:25 +0000 (13:55 +0200)]
intel_th: pci: Add Elkhart Lake SOC support
This adds support for Intel Trace Hub in Elkhart Lake.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191217115527.74383-3-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Shishkin [Tue, 17 Dec 2019 11:55:24 +0000 (13:55 +0200)]
intel_th: pci: Add Comet Lake PCH-V support
This adds Intel(R) Trace Hub PCI ID for Comet Lake PCH-V.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191217115527.74383-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Takashi Iwai [Tue, 17 Dec 2019 13:18:32 +0000 (14:18 +0100)]
Merge tag 'asoc-fix-v5.5-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.5
A collection of fixes since the merge window, mostly driver specific but
there's a few in the core that clean up fallout from the refactorings
done in the last cycle.
David Engraf [Mon, 16 Dec 2019 08:54:03 +0000 (09:54 +0100)]
tty/serial: atmel: fix out of range clock divider handling
Use MCK_DIV8 when the clock divider is > 65535. Unfortunately the mode
register was already written thus the clock selection is ignored.
Fix by doing the baud rate calulation before setting the mode.
Fixes: 5bf5635ac170 ("tty/serial: atmel: add fractional baud rate support")
Signed-off-by: David Engraf <david.engraf@sysgo.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191216085403.17050-1-david.engraf@sysgo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sudip Mukherjee [Thu, 12 Dec 2019 13:16:02 +0000 (13:16 +0000)]
tty: link tty and port before configuring it as console
There seems to be a race condition in tty drivers and I could see on
many boot cycles a NULL pointer dereference as tty_init_dev() tries to
do 'tty->port->itty = tty' even though tty->port is NULL.
'tty->port' will be set by the driver and if the driver has not yet done
it before we open the tty device we can get to this situation. By adding
some extra debug prints, I noticed that:
6.650130: uart_add_one_port
6.663849: register_console
6.664846: tty_open
6.674391: tty_init_dev
6.675456: tty_port_link_device
uart_add_one_port() registers the console, as soon as it registers, the
userspace tries to use it and that leads to tty_open() but
uart_add_one_port() has not yet done tty_port_link_device() and so
tty->port is not yet configured when control reaches tty_init_dev().
Further look into the code and tty_port_link_device() is done by
uart_add_one_port(). After registering the console uart_add_one_port()
will call tty_port_register_device_attr_serdev() and
tty_port_link_device() is called from this.
Call add tty_port_link_device() before uart_configure_port() is done and
add a check in tty_port_link_device() so that it only links the port if
it has not been done yet.
Suggested-by: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191212131602.29504-1-sudipm.mukherjee@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vincent Guittot [Fri, 29 Nov 2019 14:04:47 +0000 (15:04 +0100)]
sched/cfs: fix spurious active migration
The load balance can fail to find a suitable task during the periodic check
because the imbalance is smaller than half of the load of the waiting
tasks. This results in the increase of the number of failed load balance,
which can end up to start an active migration. This active migration is
useless because the current running task is not a better choice than the
waiting ones. In fact, the current task was probably not running but
waiting for the CPU during one of the previous attempts and it had already
not been selected.
When load balance fails too many times to migrate a task, we should relax
the contraint on the maximum load of the tasks that can be migrated
similarly to what is done with cache hotness.
Before the rework, load balance used to set the imbalance to the average
load_per_task in order to mitigate such situation. This increased the
likelihood of migrating a task but also of selecting a larger task than
needed while more appropriate ones were in the list.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1575036287-6052-1-git-send-email-vincent.guittot@linaro.org
Vincent Guittot [Wed, 4 Dec 2019 18:21:40 +0000 (19:21 +0100)]
sched/fair: Fix find_idlest_group() to handle CPU affinity
Because of CPU affinity, the local group can be skipped which breaks the
assumption that statistics are always collected for local group. With
uninitialized local_sgs, the comparison is meaningless and the behavior
unpredictable. This can even end up to use local pointer which is to
NULL in this case.
If the local group has been skipped because of CPU affinity, we return
the idlest group.
Fixes: 57abff067a08 ("sched/fair: Rework find_idlest_group()")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Cc: rostedt@goodmis.org
Cc: valentin.schneider@arm.com
Cc: mingo@redhat.com
Cc: mgorman@suse.de
Cc: juri.lelli@redhat.com
Cc: dietmar.eggemann@arm.com
Cc: bsegall@google.com
Cc: qais.yousef@arm.com
Link: https://lkml.kernel.org/r/1575483700-22153-1-git-send-email-vincent.guittot@linaro.org
Johannes Weiner [Tue, 3 Dec 2019 18:35:24 +0000 (13:35 -0500)]
psi: Fix a division error in psi poll()
The psi window size is a u64 an can be up to 10 seconds right now,
which exceeds the lower 32 bits of the variable. We currently use
div_u64 for it, which is meant only for 32-bit divisors. The result is
garbage pressure sampling values and even potential div0 crashes.
Use div64_u64.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Cc: Jingfeng Xie <xiejingfeng@linux.alibaba.com>
Link: https://lkml.kernel.org/r/20191203183524.41378-3-hannes@cmpxchg.org
Johannes Weiner [Tue, 3 Dec 2019 18:35:23 +0000 (13:35 -0500)]
sched/psi: Fix sampling error and rare div0 crashes with cgroups and high uptime
Jingfeng reports rare div0 crashes in psi on systems with some uptime:
[58914.066423] divide error: 0000 [#1] SMP
[58914.070416] Modules linked in: ipmi_poweroff ipmi_watchdog toa overlay fuse tcp_diag inet_diag binfmt_misc aisqos(O) aisqos_hotfixes(O)
[58914.083158] CPU: 94 PID: 140364 Comm: kworker/94:2 Tainted: G W OE K 4.9.151-015.ali3000.alios7.x86_64 #1
[58914.093722] Hardware name: Alibaba Alibaba Cloud ECS/Alibaba Cloud ECS, BIOS 3.23.34 02/14/2019
[58914.102728] Workqueue: events psi_update_work
[58914.107258] task:
ffff8879da83c280 task.stack:
ffffc90059dcc000
[58914.113336] RIP: 0010:[] [] psi_update_stats+0x1c1/0x330
[58914.122183] RSP: 0018:
ffffc90059dcfd60 EFLAGS:
00010246
[58914.127650] RAX:
0000000000000000 RBX:
ffff8858fe98be50 RCX:
000000007744d640
[58914.134947] RDX:
0000000000000000 RSI:
0000000000000000 RDI:
00003594f700648e
[58914.142243] RBP:
ffffc90059dcfdf8 R08:
0000359500000000 R09:
0000000000000000
[58914.149538] R10:
0000000000000000 R11:
0000000000000000 R12:
0000359500000000
[58914.156837] R13:
0000000000000000 R14:
0000000000000000 R15:
ffff8858fe98bd78
[58914.164136] FS:
0000000000000000(0000) GS:
ffff887f7f380000(0000) knlGS:
0000000000000000
[58914.172529] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[58914.178467] CR2:
00007f2240452090 CR3:
0000005d5d258000 CR4:
00000000007606f0
[58914.185765] DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
[58914.193061] DR3:
0000000000000000 DR6:
00000000fffe0ff0 DR7:
0000000000000400
[58914.200360] PKRU:
55555554
[58914.203221] Stack:
[58914.205383]
ffff8858fe98bd48 00000000000002f0 0000002e81036d09 ffffc90059dcfde8
[58914.213168]
ffff8858fe98bec8 0000000000000000 0000000000000000 0000000000000000
[58914.220951]
0000000000000000 0000000000000000 0000000000000000 0000000000000000
[58914.228734] Call Trace:
[58914.231337] [] psi_update_work+0x22/0x60
[58914.237067] [] process_one_work+0x189/0x420
[58914.243063] [] worker_thread+0x4e/0x4b0
[58914.248701] [] ? process_one_work+0x420/0x420
[58914.254869] [] kthread+0xe6/0x100
[58914.259994] [] ? kthread_park+0x60/0x60
[58914.265640] [] ret_from_fork+0x39/0x50
[58914.271193] Code: 41 29 c3 4d 39 dc 4d 0f 42 dc <49> f7 f1 48 8b 13 48 89 c7 48 c1
[58914.279691] RIP [] psi_update_stats+0x1c1/0x330
The crashing instruction is trying to divide the observed stall time
by the sampling period. The period, stored in R8, is not 0, but we are
dividing by the lower 32 bits only, which are all 0 in this instance.
We could switch to a 64-bit division, but the period shouldn't be that
big in the first place. It's the time between the last update and the
next scheduled one, and so should always be around 2s and comfortably
fit into 32 bits.
The bug is in the initialization of new cgroups: we schedule the first
sampling event in a cgroup as an offset of sched_clock(), but fail to
initialize the last_update timestamp, and it defaults to 0. That
results in a bogusly large sampling period the first time we run the
sampling code, and consequently we underreport pressure for the first
2s of a cgroup's life. But worse, if sched_clock() is sufficiently
advanced on the system, and the user gets unlucky, the period's lower
32 bits can all be 0 and the sampling division will crash.
Fix this by initializing the last update timestamp to the creation
time of the cgroup, thus correctly marking the start of the first
pressure sampling period in a new cgroup.
Reported-by: Jingfeng Xie <xiejingfeng@linux.alibaba.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Link: https://lkml.kernel.org/r/20191203183524.41378-2-hannes@cmpxchg.org
Sebastian Andrzej Siewior [Tue, 19 Nov 2019 12:14:29 +0000 (13:14 +0100)]
perf/core: Add SRCU annotation for pmus list walk
Since commit
28875945ba98d ("rcu: Add support for consolidated-RCU reader checking")
there is an additional check to ensure that a RCU related lock is held
while the RCU list is iterated.
This section holds the SRCU reader lock instead.
Add annotation to list_for_each_entry_rcu() that pmus_srcu must be
acquired during the list traversal.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lkml.kernel.org/r/20191119121429.zhcubzdhm672zasg@linutronix.de
Alexander Shishkin [Tue, 10 Dec 2019 10:51:01 +0000 (12:51 +0200)]
perf/x86/intel: Fix PT PMI handling
Commit:
ccbebba4c6bf ("perf/x86/intel/pt: Bypass PT vs. LBR exclusivity if the core supports it")
skips the PT/LBR exclusivity check on CPUs where PT and LBRs coexist, but
also inadvertently skips the active_events bump for PT in that case, which
is a bug. If there aren't any hardware events at the same time as PT, the
PMI handler will ignore PT PMIs, as active_events reads zero in that case,
resulting in the "Uhhuh" spurious NMI warning and PT data loss.
Fix this by always increasing active_events for PT events.
Fixes: ccbebba4c6bf ("perf/x86/intel/pt: Bypass PT vs. LBR exclusivity if the core supports it")
Reported-by: Vitaly Slobodskoy <vitaly.slobodskoy@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lkml.kernel.org/r/20191210105101.77210-1-alexander.shishkin@linux.intel.com
Alexander Shishkin [Thu, 5 Dec 2019 14:28:52 +0000 (17:28 +0300)]
perf/x86/intel/bts: Fix the use of page_private()
Commit
8062382c8dbe2 ("perf/x86/intel/bts: Add BTS PMU driver")
brought in a warning with the BTS buffer initialization
that is easily tripped with (assuming KPTI is disabled):
instantly throwing:
> ------------[ cut here ]------------
> WARNING: CPU: 2 PID: 326 at arch/x86/events/intel/bts.c:86 bts_buffer_setup_aux+0x117/0x3d0
> Modules linked in:
> CPU: 2 PID: 326 Comm: perf Not tainted
5.4.0-rc8-00291-gceb9e77324fa #904
> RIP: 0010:bts_buffer_setup_aux+0x117/0x3d0
> Call Trace:
> rb_alloc_aux+0x339/0x550
> perf_mmap+0x607/0xc70
> mmap_region+0x76b/0xbd0
...
It appears to assume (for lost raisins) that PagePrivate() is set,
while later it actually tests for PagePrivate() before using
page_private().
Make it consistent and always check PagePrivate() before using
page_private().
Fixes: 8062382c8dbe2 ("perf/x86/intel/bts: Add BTS PMU driver")
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lkml.kernel.org/r/20191205142853.28894-2-alexander.shishkin@linux.intel.com
Peter Zijlstra [Fri, 6 Dec 2019 11:50:16 +0000 (12:50 +0100)]
perf/x86: Fix potential out-of-bounds access
UBSAN reported out-of-bound accesses for x86_pmu.event_map(), it's
arguments should be < x86_pmu.max_events. Make sure all users observe
this constraint.
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Meelis Roos <mroos@linux.ee>
Ingo Molnar [Tue, 17 Dec 2019 11:28:02 +0000 (12:28 +0100)]
Merge tag 'perf-urgent-for-mingo-5.5-
20191216' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes:
perf top:
Arnaldo Carvalho de Melo:
- Do not bail out when perf_env__read_cpuid() returns ENOSYS, which
has been reported happening on aarch64.
perf metricgroup:
Kajol Jain:
- Fix printing event names of metric group with multiple events
vendor events:
x86:
Ravi Bangoria:
- Fix Kernel_Utilization metric.
s390:
Ed Maste:
- Fix counter long description for DTLB1_GPAGE_WRITES and L1D_RO_EXCL_WRITES.
perf header:
Michael Petlan:
- Fix false warning when there are no duplicate cache entries
libtraceevent:
Sudip Mukherjee:
- Allow custom libdir path
API headers:
Arnaldo Carvalho de Melo:
- Sync linux/kvm.h with the kernel sources.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Jerry Snitselaar [Fri, 13 Dec 2019 05:36:42 +0000 (22:36 -0700)]
iommu/vt-d: Allocate reserved region for ISA with correct permission
Currently the reserved region for ISA is allocated with no
permissions. If a dma domain is being used, mapping this region will
fail. Set the permissions to DMA_PTE_READ|DMA_PTE_WRITE.
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: stable@vger.kernel.org # v5.3+
Fixes: d850c2ee5fe2 ("iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions")
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Jerry Snitselaar [Tue, 10 Dec 2019 18:56:06 +0000 (11:56 -0700)]
iommu: set group default domain before creating direct mappings
iommu_group_create_direct_mappings uses group->default_domain, but
right after it is called, request_default_domain_for_dev calls
iommu_domain_free for the default domain, and sets the group default
domain to a different domain. Move the
iommu_group_create_direct_mappings call to after the group default
domain is set, so the direct mappings get associated with that domain.
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: stable@vger.kernel.org
Fixes: 7423e01741dd ("iommu: Add API to request DMA domain for device")
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Lu Baolu [Wed, 11 Dec 2019 01:40:15 +0000 (09:40 +0800)]
iommu/vt-d: Fix dmar pte read access not set error
If the default DMA domain of a group doesn't fit a device, it
will still sit in the group but use a private identity domain.
When map/unmap/iova_to_phys come through iommu API, the driver
should still serve them, otherwise, other devices in the same
group will be impacted. Since identity domain has been mapped
with the whole available memory space and RMRRs, we don't need
to worry about the impact on it.
Link: https://www.spinics.net/lists/iommu/msg40416.html
Cc: Jerry Snitselaar <jsnitsel@redhat.com>
Reported-by: Jerry Snitselaar <jsnitsel@redhat.com>
Fixes: 942067f1b6b97 ("iommu/vt-d: Identify default domains replaced with private")
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Tested-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Vandita Kulkarni [Mon, 16 Dec 2019 08:06:19 +0000 (13:36 +0530)]
drm/i915: Fix WARN_ON condition for cursor plane ddb allocation
In some cases like latency[level]==0, wm[level].res_lines>31,
min_ddb_alloc can be U16_MAX, exclude it from the WARN_ON.
v2: Specify the cases in which we hit U16_MAX, indentation (Ville)
Fixes: 10a7e07b68b9 ("drm/i915: Make sure cursor has enough ddb for the selected wm level")
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191216080619.10945-1-vandita.kulkarni@intel.com
(cherry picked from commit
4ba487019d1a196051feefab57f4a393815733b4)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Enrico Weigelt, metux IT consult [Mon, 16 Dec 2019 20:07:19 +0000 (21:07 +0100)]
scripts: package: mkdebian: add missing rsync dependency
We've missed the dependency to rsync, so build fails on
minimal containers.
Fixes: 59b2bd05f5f4 ("kbuild: add 'headers' target to build up uapi headers in usr/include")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Thomas Hebb [Mon, 9 Dec 2019 08:19:17 +0000 (00:19 -0800)]
kconfig: don't crash on NULL expressions in expr_eq()
NULL expressions are taken to always be true, as implemented by the
expr_is_yes() macro and by several other functions in expr.c. As such,
they ought to be valid inputs to expr_eq(), which compares two
expressions.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Alex Williamson [Wed, 11 Dec 2019 20:28:29 +0000 (13:28 -0700)]
iommu/vt-d: Set ISA bridge reserved region as relaxable
Commit
d850c2ee5fe2 ("iommu/vt-d: Expose ISA direct mapping region via
iommu_get_resv_regions") created a direct-mapped reserved memory region
in order to replace the static identity mapping of the ISA address
space, where the latter was then removed in commit
df4f3c603aeb
("iommu/vt-d: Remove static identity map code"). According to the
history of this code and the Kconfig option surrounding it, this direct
mapping exists for the benefit of legacy ISA drivers that are not
compatible with the DMA API.
In conjuntion with commit
9b77e5c79840 ("vfio/type1: check dma map
request is within a valid iova range") this change introduced a
regression where the vfio IOMMU backend enforces reserved memory regions
per IOMMU group, preventing userspace from creating IOMMU mappings
conflicting with prescribed reserved regions. A necessary prerequisite
for the vfio change was the introduction of "relaxable" direct mappings
introduced by commit
adfd37382090 ("iommu: Introduce
IOMMU_RESV_DIRECT_RELAXABLE reserved memory regions"). These relaxable
direct mappings provide the same identity mapping support in the default
domain, but also indicate that the reservation is software imposed and
may be relaxed under some conditions, such as device assignment.
Convert the ISA bridge direct-mapped reserved region to relaxable to
reflect that the restriction is self imposed and need not be enforced
by drivers such as vfio.
Fixes: 1c5c59fbad20 ("iommu/vt-d: Differentiate relaxable and non relaxable RMRRs")
Cc: stable@vger.kernel.org # v5.3+
Link: https://lore.kernel.org/linux-iommu/20191211082304.2d4fab45@x1.home
Reported-by: cprt <cprt@protonmail.com>
Tested-by: cprt <cprt@protonmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tadeusz Struk [Thu, 12 Dec 2019 17:48:59 +0000 (09:48 -0800)]
tpm: selftest: cleanup after unseal with wrong auth/policy test
Unseal with wrong auth or wrong policy test affects DA lockout
and eventually causes the tests to fail with:
"ProtocolError: TPM_RC_LOCKOUT: rc=0x00000921"
when the tests run multiple times.
Send tpm clear command after the test to reset the DA counters.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tadeusz Struk [Thu, 12 Dec 2019 17:48:53 +0000 (09:48 -0800)]
tpm: selftest: add test covering async mode
Add a test that sends a tpm cmd in an async mode.
Currently there is a gap in test coverage with regards
to this functionality.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tadeusz Struk [Thu, 12 Dec 2019 17:48:47 +0000 (09:48 -0800)]
tpm: fix invalid locking in NONBLOCKING mode
When an application sends TPM commands in NONBLOCKING mode
the driver holds chip->tpm_mutex returning from write(),
which triggers: "WARNING: lock held when returning to user space".
To fix this issue the driver needs to release the mutex before
returning and acquire it again in tpm_dev_async_work() before
sending the command.
Cc: stable@vger.kernel.org
Fixes: 9e1b74a63f776 (tpm: add support for nonblocking operation)
Reported-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Robin Murphy [Wed, 11 Dec 2019 18:33:26 +0000 (18:33 +0000)]
iommu/dma: Rationalise types for DMA masks
Since iommu_dma_alloc_iova() combines incoming masks with the u64 bus
limit, it makes more sense to pass them around in their native u64
rather than converting to dma_addr_t early. Do that, and resolve the
remaining type discrepancy against the domain geometry with a cheeky
cast to keep things simple.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Xiaotao Yin [Tue, 10 Dec 2019 04:27:04 +0000 (12:27 +0800)]
iommu/iova: Init the struct iova to fix the possible memleak
During ethernet(Marvell octeontx2) set ring buffer test:
ethtool -G eth1 rx <rx ring size> tx <tx ring size>
following kmemleak will happen sometimes:
unreferenced object 0xffff000b85421340 (size 64):
comm "ethtool", pid 867, jiffies
4295323539 (age 550.500s)
hex dump (first 64 bytes):
80 13 42 85 0b 00 ff ff ff ff ff ff ff ff ff ff ..B.............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
ff ff ff ff ff ff ff ff 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<
000000001b204ddf>] kmem_cache_alloc+0x1b0/0x350
[<
00000000d9ef2e50>] alloc_iova+0x3c/0x168
[<
00000000ea30f99d>] alloc_iova_fast+0x7c/0x2d8
[<
00000000b8bb2f1f>] iommu_dma_alloc_iova.isra.0+0x12c/0x138
[<
000000002f1a43b5>] __iommu_dma_map+0x8c/0xf8
[<
00000000ecde7899>] iommu_dma_map_page+0x98/0xf8
[<
0000000082004e59>] otx2_alloc_rbuf+0xf4/0x158
[<
000000002b107f6b>] otx2_rq_aura_pool_init+0x110/0x270
[<
00000000c3d563c7>] otx2_open+0x15c/0x734
[<
00000000a2f5f3a8>] otx2_dev_open+0x3c/0x68
[<
00000000456a98b5>] otx2_set_ringparam+0x1ac/0x1d4
[<
00000000f2fbb819>] dev_ethtool+0xb84/0x2028
[<
0000000069b67c5a>] dev_ioctl+0x248/0x3a0
[<
00000000af38663a>] sock_ioctl+0x280/0x638
[<
000000002582384c>] do_vfs_ioctl+0x8b0/0xa80
[<
000000004e1a2c02>] ksys_ioctl+0x84/0xb8
The reason:
When alloc_iova_mem() without initial with Zero, sometimes fpn_lo will
equal to IOVA_ANCHOR by chance, so when return with -ENOMEM(iova32_full)
from __alloc_and_insert_iova_range(), the new_iova will not be freed in
free_iova_mem().
Fixes: bb68b2fbfbd6 ("iommu/iova: Add rbtree anchor node")
Signed-off-by: Xiaotao Yin <xiaotao.yin@windriver.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
James Bottomley [Thu, 12 Dec 2019 17:58:35 +0000 (12:58 -0500)]
security: keys: trusted: fix lost handle flush
The original code, before it was moved into security/keys/trusted-keys
had a flush after the blob unseal. Without that flush, the volatile
handles increase in the TPM until it becomes unusable and the system
either has to be rebooted or the TPM volatile area manually flushed.
Fix by adding back the lost flush, which we now have to export because
of the relocation of the trusted key code may cause the consumer to be
modular.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Fixes: 2e19e10131a0 ("KEYS: trusted: Move TPM2 trusted keys code")
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Jan H. Schönherr [Tue, 10 Dec 2019 00:07:30 +0000 (01:07 +0100)]
x86/mce: Fix possibly incorrect severity calculation on AMD
The function mce_severity_amd_smca() requires m->bank to be initialized
for correct operation. Fix the one case, where mce_severity() is called
without doing so.
Fixes: 6bda529ec42e ("x86/mce: Grade uncorrected errors for SMCA-enabled systems")
Fixes: d28af26faa0b ("x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out()")
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Link: https://lkml.kernel.org/r/20191210000733.17979-4-jschoenh@amazon.de
Yazen Ghannam [Thu, 21 Nov 2019 14:15:08 +0000 (08:15 -0600)]
x86/MCE/AMD: Allow Reserved types to be overwritten in smca_banks[]
Each logical CPU in Scalable MCA systems controls a unique set of MCA
banks in the system. These banks are not shared between CPUs. The bank
types and ordering will be the same across CPUs on currently available
systems.
However, some CPUs may see a bank as Reserved/Read-as-Zero (RAZ) while
other CPUs do not. In this case, the bank seen as Reserved on one CPU is
assumed to be the same type as the bank seen as a known type on another
CPU.
In general, this occurs when the hardware represented by the MCA bank
is disabled, e.g. disabled memory controllers on certain models, etc.
The MCA bank is disabled in the hardware, so there is no possibility of
getting an MCA/MCE from it even if it is assumed to have a known type.
For example:
Full system:
Bank | Type seen on CPU0 | Type seen on CPU1
------------------------------------------------
0 | LS | LS
1 | UMC | UMC
2 | CS | CS
System with hardware disabled:
Bank | Type seen on CPU0 | Type seen on CPU1
------------------------------------------------
0 | LS | LS
1 | UMC | RAZ
2 | CS | CS
For this reason, there is a single, global struct smca_banks[] that is
initialized at boot time. This array is initialized on each CPU as it
comes online. However, the array will not be updated if an entry already
exists.
This works as expected when the first CPU (usually CPU0) has all
possible MCA banks enabled. But if the first CPU has a subset, then it
will save a "Reserved" type in smca_banks[]. Successive CPUs will then
not be able to update smca_banks[] even if they encounter a known bank
type.
This may result in unexpected behavior. Depending on the system
configuration, a user may observe issues enumerating the MCA
thresholding sysfs interface. The issues may be as trivial as sysfs
entries not being available, or as severe as system hangs.
For example:
Bank | Type seen on CPU0 | Type seen on CPU1
------------------------------------------------
0 | LS | LS
1 | RAZ | UMC
2 | CS | CS
Extend the smca_banks[] entry check to return if the entry is a
non-reserved type. Otherwise, continue so that CPUs that encounter a
known bank type can update smca_banks[].
Fixes: 68627a697c19 ("x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type")
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191121141508.141273-1-Yazen.Ghannam@amd.com
Konstantin Khlebnikov [Thu, 31 Oct 2019 13:04:48 +0000 (16:04 +0300)]
x86/MCE/AMD: Do not use rdmsr_safe_on_cpu() in smca_configure()
... because interrupts are disabled that early and sending IPIs can
deadlock:
BUG: sleeping function called from invalid context at kernel/sched/completion.c:99
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1
no locks held by swapper/1/0.
irq event stamp: 0
hardirqs last enabled at (0): [<
0000000000000000>] 0x0
hardirqs last disabled at (0): [<
ffffffff8106dda9>] copy_process+0x8b9/0x1ca0
softirqs last enabled at (0): [<
ffffffff8106dda9>] copy_process+0x8b9/0x1ca0
softirqs last disabled at (0): [<
0000000000000000>] 0x0
Preemption disabled at:
[<
ffffffff8104703b>] start_secondary+0x3b/0x190
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc2+ #1
Hardware name: GIGABYTE MZ01-CE1-00/MZ01-CE1-00, BIOS F02 08/29/2018
Call Trace:
dump_stack
___might_sleep.cold.92
wait_for_completion
? generic_exec_single
rdmsr_safe_on_cpu
? wrmsr_on_cpus
mce_amd_feature_init
mcheck_cpu_init
identify_cpu
identify_secondary_cpu
smp_store_cpu_info
start_secondary
secondary_startup_64
The function smca_configure() is called only on the current CPU anyway,
therefore replace rdmsr_safe_on_cpu() with atomic rdmsr_safe() and avoid
the IPI.
[ bp: Update commit message. ]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/157252708836.3876.4604398213417262402.stgit@buzz
Brendan Higgins [Wed, 11 Dec 2019 19:27:41 +0000 (11:27 -0800)]
staging: axis-fifo: add unspecified HAS_IOMEM dependency
Currently CONFIG_XIL_AXIS_FIFO=y implicitly depends on
CONFIG_HAS_IOMEM=y; consequently, on architectures without IOMEM we get
the following build error:
ld: drivers/staging/axis-fifo/axis-fifo.o: in function `axis_fifo_probe':
drivers/staging/axis-fifo/axis-fifo.c:809: undefined reference to `devm_ioremap_resource'
Fix the build error by adding the unspecified dependency.
Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Link: https://lore.kernel.org/r/20191211192742.95699-7-brendanhiggins@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Mon, 16 Dec 2019 11:08:23 +0000 (11:08 +0000)]
staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value
The "auto-attach" handler function `gsc_hpdi_auto_attach()` calls
`dma_alloc_coherent()` in a loop to allocate some DMA data buffers, and
also calls it to allocate a buffer for a DMA descriptor chain. However,
it does not check the return value of any of these calls. Change
`gsc_hpdi_auto_attach()` to return `-ENOMEM` if any of these
`dma_alloc_coherent()` calls fail. This will result in the comedi core
calling the "detach" handler `gsc_hpdi_detach()` as part of the
clean-up, which will call `gsc_hpdi_free_dma()` to free any allocated
DMA coherent memory buffers.
Cc: <stable@vger.kernel.org> #4.6+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20191216110823.216237-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Marcus Comstedt [Sun, 15 Dec 2019 09:49:00 +0000 (10:49 +0100)]
KVM: PPC: Book3S HV: Fix regression on big endian hosts
VCPU_CR is the offset of arch.regs.ccr in kvm_vcpu.
arch/powerpc/include/asm/kvm_host.h defines arch.regs as a struct
pt_regs, and arch/powerpc/include/asm/ptrace.h defines the ccr field
of pt_regs as "unsigned long ccr". Since unsigned long is 64 bits, a
64-bit load needs to be used to load it, unless an endianness specific
correction offset is added to access the desired subpart. In this
case there is no reason to _not_ use a 64 bit load though.
Fixes: 6c85b7bc637b ("powerpc/kvm: Use UV_RETURN ucall to return to ultravisor")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Marcus Comstedt <marcus@mc.pp.se>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191215094900.46740-1-marcus@mc.pp.se
David S. Miller [Tue, 17 Dec 2019 03:26:11 +0000 (19:26 -0800)]
Merge tag 'mac80211-for-net-2019-10-16' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
A handful of fixes:
* disable AQL on most drivers, addressing the iwlwifi issues
* fix double-free on network namespace changes
* fix TID field in frames injected through monitor interfaces
* fix ieee80211_calc_rx_airtime()
* fix NULL pointer dereference in rfkill (and remove BUG_ON)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sun, 15 Dec 2019 22:12:14 +0000 (00:12 +0200)]
net: dsa: ocelot: add NET_VENDOR_MICROSEMI dependency
Selecting MSCC_OCELOT_SWITCH is not possible when NET_VENDOR_MICROSEMI
is disabled:
WARNING: unmet direct dependencies detected for MSCC_OCELOT_SWITCH
Depends on [n]: NETDEVICES [=y] && ETHERNET [=n] && NET_VENDOR_MICROSEMI [=n] && NET_SWITCHDEV [=y] && HAS_IOMEM [=y]
Selected by [m]:
- NET_DSA_MSCC_FELIX [=m] && NETDEVICES [=y] && HAVE_NET_DSA [=y] && NET_DSA [=y] && PCI [=y]
Add a Kconfig dependency on NET_VENDOR_MICROSEMI, which also implies
CONFIG_NETDEVICES.
Depending on a vendor config violates menuconfig locality for the DSA
driver, but is the smallest compromise since all other solutions are
much more complicated (see [0]).
https://www.spinics.net/lists/netdev/msg618808.html
Fixes: 56051948773e ("net: dsa: ocelot: add driver for Felix switch family")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gao Fred [Tue, 17 Dec 2019 03:19:58 +0000 (11:19 +0800)]
drm/i915/gvt: Fix guest boot warning
Simulate MIA core in reset status once GUC engine is reset.
v2: 1. use vgpu_vreg_t() function,
2. clear MIA_IN_RESET after reading. (Zhenyu)
v3: add comments. (Zhenyu)
Signed-off-by: Gao Fred <fred.gao@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20191216160255.29499-1-fred.gao@intel.com
Jerry Snitselaar [Wed, 11 Dec 2019 23:54:55 +0000 (16:54 -0700)]
tpm_tis: reserve chip for duration of tpm_tis_core_init
Instead of repeatedly calling tpm_chip_start/tpm_chip_stop when
issuing commands to the tpm during initialization, just reserve the
chip after wait_startup, and release it when we are ready to call
tpm_chip_register.
Cc: Christian Bundy <christianbundy@fraction.io>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Cc: linux-integrity@vger.kernel.org
Fixes: a3fbfae82b4c ("tpm: take TPM chip power gating out of tpm_transmit()")
Fixes: 5b359c7c4372 ("tpm_tis_core: Turn on the TPM before probing IRQ's")
Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Linus Torvalds [Tue, 17 Dec 2019 00:43:07 +0000 (16:43 -0800)]
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"I didn't get a batch in this weekend, so here's what we queued up last
week and today.
- A couple of defconfigs add back debugfs -- it used to be implicitly
enabled through CONFIG_TRACING, but
0e4a459f56c32d3e ("tracing:
Remove unnecessary DEBUG_FS dependency") removed that.
- The rest are mostly minor fixlets of the usual kind; some DT
tweaks, a headerfile refactor that needs a build fix now, etc"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
ARM: bcm: Add missing sentinel to bcm2711_compat[]
ARM: shmobile: defconfig: Restore debugfs support
bus: ti-sysc: Fix missing reset delay handling
ARM: imx: Fix boot crash if ocotp is not found
ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS
ARM: dts: imx6ul-evk: Fix peripheral regulator
arm64: dts: ls1028a: fix reboot node
ARM: mmp: include the correct cputype.h
ARM: dts: am437x-gp/epos-evm: fix panel compatible
arm64: dts: ls1028a: fix typo in TMU calibration data
ARM: imx: Correct ocotp id for serial number support of i.MX6ULL/ULZ SoCs
ARM: dts: bcm283x: Fix critical trip point
ARM: omap2plus_defconfig: Add back DEBUG_FS
ARM: omap2plus_defconfig: enable NET_SWITCHDEV
ARM: dts: am335x-sancloud-bbe: fix phy mode
bus: ti-sysc: Fix missing force mstandby quirk handling
reset: Do not register resource data for missing resets
reset: Fix {of,devm}_reset_control_array_get kerneldoc return types
reset: brcmstb: Remove resource checks
dt-bindings: reset: Fix brcmstb-reset example
...
Navid Emamdoost [Sun, 15 Dec 2019 01:10:44 +0000 (19:10 -0600)]
net: gemini: Fix memory leak in gmac_setup_txqs
In the implementation of gmac_setup_txqs() the allocated desc_ring is
leaked if TX queue base is not aligned. Release it via
dma_free_coherent.
Fixes: 4d5ae32f5e1e ("net: ethernet: Add a driver for Gemini gigabit ethernet")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 13 Dec 2019 20:00:27 +0000 (12:00 -0800)]
net: dsa: b53: Fix egress flooding settings
There were several issues with
53568438e381 ("net: dsa: b53: Add support for port_egress_floods callback") that resulted in breaking connectivity for standalone ports:
- both user and CPU ports must allow unicast and multicast forwarding by
default otherwise this just flat out breaks connectivity for
standalone DSA ports
- IP multicast is treated similarly as multicast, but has separate
control registers
- the UC, MC and IPMC lookup failure register offsets were wrong, and
instead used bit values that are meaningful for the
B53_IP_MULTICAST_CTRL register
Fixes: 53568438e381 ("net: dsa: b53: Add support for port_egress_floods callback")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 17 Dec 2019 00:07:12 +0000 (16:07 -0800)]
Merge branch 'vsock-fixes'
Stefano Garzarella says:
====================
vsock/virtio: fix null-pointer dereference and related precautions
This series mainly solves a possible null-pointer dereference in
virtio_transport_recv_listen() introduced with the multi-transport
support [PATCH 1].
PATCH 2 adds a WARN_ON check for the same potential issue
and a returned error in the virtio_transport_send_pkt_info() function
to avoid crashing the kernel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefano Garzarella [Fri, 13 Dec 2019 18:48:01 +0000 (19:48 +0100)]
vsock/virtio: add WARN_ON check on virtio_transport_get_ops()
virtio_transport_get_ops() and virtio_transport_send_pkt_info()
can only be used on connecting/connected sockets, since a socket
assigned to a transport is required.
This patch adds a WARN_ON() on virtio_transport_get_ops() to check
this requirement, a comment and a returned error on
virtio_transport_send_pkt_info(),
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefano Garzarella [Fri, 13 Dec 2019 18:48:00 +0000 (19:48 +0100)]
vsock/virtio: fix null-pointer dereference in virtio_transport_recv_listen()
With multi-transport support, listener sockets are not bound to any
transport. So, calling virtio_transport_reset(), when an error
occurs, on a listener socket produces the following null-pointer
dereference:
BUG: kernel NULL pointer dereference, address:
00000000000000e8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted
5.5.0-rc1-ste-00003-gb4be21f316ac-dirty #56
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014
Workqueue: virtio_vsock virtio_transport_rx_work [vmw_vsock_virtio_transport]
RIP: 0010:virtio_transport_send_pkt_info+0x20/0x130 [vmw_vsock_virtio_transport_common]
Code: 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 57 41 56 41 55 49 89 f5 41 54 49 89 fc 53 48 83 ec 10 44 8b 76 20 e8 c0 ba fe ff <48> 8b 80 e8 00 00 00 e8 64 e3 7d c1 45 8b 45 00 41 8b 8c 24 d4 02
RSP: 0018:
ffffc900000b7d08 EFLAGS:
00010282
RAX:
0000000000000000 RBX:
ffff88807bf12728 RCX:
0000000000000000
RDX:
ffff88807bf12700 RSI:
ffffc900000b7d50 RDI:
ffff888035c84000
RBP:
ffffc900000b7d40 R08:
ffff888035c84000 R09:
ffffc900000b7d08
R10:
ffff8880781de800 R11:
0000000000000018 R12:
ffff888035c84000
R13:
ffffc900000b7d50 R14:
0000000000000000 R15:
ffff88807bf12724
FS:
0000000000000000(0000) GS:
ffff88807dc00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00000000000000e8 CR3:
00000000790f4004 CR4:
0000000000160ef0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000fffe0ff0 DR7:
0000000000000400
Call Trace:
virtio_transport_reset+0x59/0x70 [vmw_vsock_virtio_transport_common]
virtio_transport_recv_pkt+0x5bb/0xe50 [vmw_vsock_virtio_transport_common]
? detach_buf_split+0xf1/0x130
virtio_transport_rx_work+0xba/0x130 [vmw_vsock_virtio_transport]
process_one_work+0x1c0/0x300
worker_thread+0x45/0x3c0
kthread+0xfc/0x130
? current_work+0x40/0x40
? kthread_park+0x90/0x90
ret_from_fork+0x35/0x40
Modules linked in: sunrpc kvm_intel kvm vmw_vsock_virtio_transport vmw_vsock_virtio_transport_common irqbypass vsock virtio_rng rng_core
CR2:
00000000000000e8
---[ end trace
e75400e2ea2fa824 ]---
This happens because virtio_transport_reset() calls
virtio_transport_send_pkt_info() that can be used only on
connecting/connected sockets.
This patch fixes the issue, using virtio_transport_reset_no_sock()
instead of virtio_transport_reset() when we are handling a listener
socket.
Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Christie [Sun, 8 Dec 2019 22:51:50 +0000 (16:51 -0600)]
nbd: fix shutdown and recv work deadlock v2
This fixes a regression added with:
commit
e9e006f5fcf2bab59149cb38a48a4817c1b538b4
Author: Mike Christie <mchristi@redhat.com>
Date: Sun Aug 4 14:10:06 2019 -0500
nbd: fix max number of supported devs
where we can deadlock during device shutdown. The problem occurs if
the recv_work's nbd_config_put occurs after nbd_start_device_ioctl has
returned and the userspace app has droppped its reference via closing
the device and running nbd_release. The recv_work nbd_config_put call
would then drop the refcount to zero and try to destroy the config which
would try to do destroy_workqueue from the recv work.
This patch just has nbd_start_device_ioctl do a flush_workqueue when it
wakes so we know after the ioctl returns running works have exited. This
also fixes a possible race where we could try to reuse the device while
old recv_works are still running.
Cc: stable@vger.kernel.org
Fixes: e9e006f5fcf2 ("nbd: fix max number of supported devs")
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Mon, 16 Dec 2019 21:34:00 +0000 (13:34 -0800)]
iocost: over-budget forced IOs should schedule async delay
When over-budget IOs are force-issued through root cgroup,
iocg_kick_delay() adjusts the async delay accordingly but doesn't
actually schedule async throttle for the issuing task. This bug is
pretty well masked because sooner or later the offending threads are
gonna get directly throttled on regular IOs or have async delay
scheduled by mem_cgroup_throttle_swaprate().
However, it can affect control quality on filesystem metadata heavy
operations. Let's fix it by invoking blkcg_schedule_throttle() when
iocg_kick_delay() says async delay is needed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 7caa47151ab2 ("blkcg: implement blk-iocost")
Cc: stable@vger.kernel.org
Reported-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Olof Johansson [Mon, 16 Dec 2019 19:33:29 +0000 (11:33 -0800)]
Merge tag 'arm-soc/for-5.5/soc-fixes' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs machine fixes for
5.5-rc1, please pull the following:
- H. Nikolaus adds a missing sentinel entry to the BCM2711 machine
descriptor compatible array which would make multiplatform kernels fail
to boot
* tag 'arm-soc/for-5.5/soc-fixes' of https://github.com/Broadcom/stblinux:
ARM: bcm: Add missing sentinel to bcm2711_compat[]
Link: https://lore.kernel.org/r/20191216035701.15534-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Mon, 16 Dec 2019 19:33:13 +0000 (11:33 -0800)]
Merge tag 'samsung-fixes-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/fixes
Samsung fixes for v5.5
1. Restore debugfs support in exynos_defconfig (as now it is not
selected as dependency of tracing). Debugfs is required by systemd
and several tests.
2. Maintainers updates.
* tag 'samsung-fixes-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: exynos_defconfig: Restore debugfs support
MAINTAINERS: Include Samsung SoC serial driver in Samsung SoC entry
MAINTAINERS: Update Lukasz Luba's email address
Link: https://lore.kernel.org/r/20191215121316.32091-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Mon, 16 Dec 2019 19:33:04 +0000 (11:33 -0800)]
Merge tag 'renesas-fixes-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes
Renesas fixes for v5.5
- Restore debugfs support
* tag 'renesas-fixes-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
ARM: shmobile: defconfig: Restore debugfs support
Link: https://lore.kernel.org/r/20191213213719.18122-1-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
Daniel Borkmann [Mon, 16 Dec 2019 16:49:00 +0000 (17:49 +0100)]
bpf: Fix missing prog untrack in release_maps
Commit
da765a2f5993 ("bpf: Add poke dependency tracking for prog array
maps") wrongly assumed that in case of prog load errors, we're cleaning
up all program tracking via bpf_free_used_maps().
However, it can happen that we're still at the point where we didn't copy
map pointers into the prog's aux section such that env->prog->aux->used_maps
is still zero, running into a UAF. In such case, the verifier has similar
release_maps() helper that drops references to used maps from its env.
Consolidate the release code into __bpf_free_used_maps() and call it from
all sides to fix it.
Fixes: da765a2f5993 ("bpf: Add poke dependency tracking for prog array maps")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/1c2909484ca524ae9f55109b06f22b6213e76376.1576514756.git.daniel@iogearbox.net
Linus Torvalds [Mon, 16 Dec 2019 18:06:04 +0000 (10:06 -0800)]
Merge tag 'linux-kselftest-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
- ftrace and safesetid test fixes from Masami Hiramatsu
- Kunit fixes from Brendan Higgins, Iurii Zaikin, and Heidi Fahim
- Kselftest framework fixes from SeongJae Park and Michael Ellerman
* tag 'linux-kselftest-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftest: Support old perl versions
kselftest/runner: Print new line in print of timeout log
selftests: Fix dangling documentation references to kselftest_module.sh
Documentation: kunit: add documentation for kunit_tool
Documentation: kunit: fix typos and gramatical errors
kunit: testing kunit: Bug fix in test_run_timeout function
fs/ext4/inode-test: Fix inode test on 32 bit platforms.
selftests: safesetid: Fix Makefile to set correct test program
selftests: safesetid: Check the return value of setuid/setgid
selftests: safesetid: Move link library to LDLIBS
selftests/ftrace: Fix multiple kprobe testcase
selftests/ftrace: Do not to use absolute debugfs path
selftests/ftrace: Fix ftrace test cases to check unsupported
selftests/ftrace: Fix to check the existence of set_ftrace_filter
Alexandre Belloni [Thu, 28 Nov 2019 10:25:31 +0000 (11:25 +0100)]
clk: at91: fix possible deadlock
Lockdep warns about a possible circular locking dependency because using
syscon_node_to_regmap() will make the created regmap get and enable the
first clock it can parse from the device tree. This clock is not needed to
access the registers and should not be enabled at that time.
Use the recently introduced device_node_to_regmap to solve that as it looks
up the regmap in the same list but doesn't care about the clocks.
Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/20191128102531.817549-1-alexandre.belloni@bootlin.com
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Jan Kara [Mon, 16 Dec 2019 10:54:32 +0000 (11:54 +0100)]
pipe: Fix bogus dereference in iov_iter_alignment()
We cannot look at 'i->pipe' unless we know the iter is a pipe. Move the
ring_size load to a branch in iov_iter_alignment() where we've already
checked the iter is a pipe to avoid bogus dereference.
Reported-by: syzbot+bea68382bae9490e7dd6@syzkaller.appspotmail.com
Fixes: 8cefc107ca54 ("pipe: Use head and tail pointers for the ring, not cursor and length")
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Eric Auger [Tue, 26 Nov 2019 17:54:13 +0000 (18:54 +0100)]
iommu: fix KASAN use-after-free in iommu_insert_resv_region
In case the new region gets merged into another one, the nr list node is
freed. Checking its type while completing the merge algorithm leads to
a use-after-free. Use new->type instead.
Fixes: 4dbd258ff63e ("iommu: Revisit iommu_insert_resv_region() implementation")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Qian Cai <cai@lca.pw>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Stable <stable@vger.kernel.org> #v5.3+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 16 Dec 2019 03:50:23 +0000 (19:50 -0800)]
Fix root mounting with no mount options
The "trivial conversion" in commit
cccaa5e33525 ("init: use do_mount()
instead of ksys_mount()") was totally broken, since it didn't handle the
case of a NULL mount data pointer. And while I had "tested" it (and
presumably Dominik had too) that bug was hidden by me having options.
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Reported-by: Ondřej Jirman <megi@xff.cz>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-and-tested-by: Borislav Petkov <bp@suse.de>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Tested-by: Eric Biggers <ebiggers@kernel.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ed Maste [Thu, 12 Dec 2019 14:53:46 +0000 (14:53 +0000)]
perf vendor events s390: Remove name from L1D_RO_EXCL_WRITES description
In
7fcfa9a2d9 an unintended prefix "Counter:18 Name:" was removed from
the description for L1D_RO_EXCL_WRITES, but the extra name remained in
the description. Remove it too.
Fixes: 7fcfa9a2d9a7 ("perf list: Fix s390 counter long description for L1D_RO_EXCL_WRITES")
Signed-off-by: Ed Maste <emaste@freebsd.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Link: http://lore.kernel.org/lkml/20191212145346.5026-1-emaste@freefall.freebsd.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ed Maste [Thu, 12 Dec 2019 14:34:46 +0000 (14:34 +0000)]
perf vendor events s390: Fix counter long description for DTLB1_GPAGE_WRITES
The cf_z13 counter DTLB1_GPAGE_WRITES included a prefix
'Counter:132\tName:'.
This is incorrect; remove the prefix as with
7fcfa9a2d9 for cf_z14.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Link: http://lore.kernel.org/lkml/20191212143446.88582-1-emaste@freefall.freebsd.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sudip Mukherjee [Sat, 7 Dec 2019 11:14:40 +0000 (11:14 +0000)]
libtraceevent: Allow custom libdir path
When I use prefix=/usr and try to install libtraceevent in my laptop it
tries to install in /usr/lib64. I am not having any folder as /usr/lib64
and also the debian policy doesnot allow installing in /usr/lib64. It
should be in /usr/lib/x86_64-linux-gnu/.
Quote: No package for a 64 bit architecture may install files in
/usr/lib64/ or in a subdirectory of it.
ref: https://www.debian.org/doc/debian-policy/ch-opersys.html
Make it more flexible by allowing to mention libdir_relative while
installing so that distros can mention the path according to their
policy or use the default one.
Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191207111440.6574-1-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Takashi Iwai [Mon, 16 Dec 2019 15:12:24 +0000 (16:12 +0100)]
ALSA: hda - Downgrade error message for single-cmd fallback
We made the error message for the CORB/RIRB communication clearer by
upgrading to dev_WARN() so that user can notice better. But this
struck us like a boomerang: now it caught syzbot and reported back as
a fatal issue although it's not really any too serious bug that worth
for stopping the whole system.
OK, OK, let's be softy, downgrade it to the standard dev_err() again.
Fixes: dd65f7e19c69 ("ALSA: hda - Show the fatal CORB/RIRB error more clearly")
Reported-by: syzbot+b3028ac3933f5c466389@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20191216151224.30013-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Andrew Donnellan [Mon, 9 Dec 2019 13:22:21 +0000 (00:22 +1100)]
powerpc: Fix __clear_user() with KUAP enabled
The KUAP implementation adds calls in clear_user() to enable and
disable access to userspace memory. However, it doesn't add these to
__clear_user(), which is used in the ptrace regset code.
As there's only one direct user of __clear_user() (the regset code),
and the time taken to set the AMR for KUAP purposes is going to
dominate the cost of a quick access_ok(), there's not much point
having a separate path.
Rename __clear_user() to __arch_clear_user(), and make __clear_user()
just call clear_user().
Reported-by: syzbot+f25ecf4b2982d8c7a640@syzkaller-ppc64.appspotmail.com
Reported-by: Daniel Axtens <dja@axtens.net>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Fixes: de78a9c42a79 ("powerpc: Add a framework for Kernel Userspace Access Protection")
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
[mpe: Use __arch_clear_user() for the asm version like arm64 & nds32]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191209132221.15328-1-ajd@linux.ibm.com
David Hildenbrand [Mon, 16 Dec 2019 10:30:58 +0000 (11:30 +0100)]
powerpc/pseries/cmm: fix managed page counts when migrating pages between zones
Commit
63341ab03706 (virtio-balloon: fix managed page counts when migrating
pages between zones) fixed a long existing BUG in the virtio-balloon
driver when pages would get migrated between zones. I did not try to
reproduce on powerpc, but looking at the code, the same should apply to
powerpc/cmm ever since it started using the balloon compaction
infrastructure (luckily just recently).
In case we have to migrate a ballon page to a newpage of another zone, the
managed page count of both zones is wrong. Paired with memory offlining
(which will adjust the managed page count), we can trigger kernel crashes
and all kinds of different symptoms.
Fix it by properly adjusting the managed page count when migrating if
the zone changed.
We'll temporarily modify the totalram page count. If this ever becomes a
problem, we can fine tune by providing helpers that don't touch
the totalram pages (e.g., adjust_zone_managed_page_count()).
Fixes: fe030c9b85e6 ("powerpc/pseries/cmm: Implement balloon compaction")
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191216103058.4958-1-david@redhat.com
Christophe Leroy [Sat, 14 Dec 2019 08:10:29 +0000 (08:10 +0000)]
powerpc/8xx: fix bogus __init on mmu_mapin_ram_chunk()
Remove __init qualifier for mmu_mapin_ram_chunk() as it is called by
mmu_mark_initmem_nx() and mmu_mark_rodata_ro() which are not __init
functions.
At the same time, mark it static as it is only used in this file.
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: a2227a277743 ("powerpc/32: Don't populate page tables for block mapped pages except on the 8xx")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/56648921986a6b3e7315b1fbbf4684f21bd2dea8.1576310997.git.christophe.leroy@c-s.fr
Christophe Leroy [Thu, 12 Dec 2019 17:47:24 +0000 (17:47 +0000)]
spi: fsl: use platform_get_irq() instead of of_irq_to_resource()
Unlike irq_of_parse_and_map() which has a dummy definition on SPARC,
of_irq_to_resource() hasn't.
But as platform_get_irq() can be used instead and is generic, use it.
Reported-by: kbuild test robot <lkp@intel.com>
Suggested-by: Mark Brown <broonie@kernel.org>
Fixes: 3194d2533eff ("spi: fsl: don't map irq during probe")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Link: https://lore.kernel.org/r/091a277fd0b3356dca1e29858c1c96983fc9cb25.1576172743.git.christophe.leroy@c-s.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Michael Walle [Wed, 11 Dec 2019 19:57:30 +0000 (20:57 +0100)]
spi: nxp-fspi: Ensure width is respected in spi-mem operations
Make use of a core helper to ensure the desired width is respected
when calling spi-mem operators.
Otherwise only the SPI controller will be matched with the flash chip,
which might lead to wrong widths. Also consider the width specified by
the user in the device tree.
Fixes: a5356aef6a90 ("spi: spi-mem: Add driver for NXP FlexSPI controller")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20191211195730.26794-1-michael@walle.cc
Signed-off-by: Mark Brown <broonie@kernel.org>
Andreas Kemnade [Wed, 11 Dec 2019 22:16:00 +0000 (23:16 +0100)]
regulator: rn5t618: fix module aliases
platform device aliases were missing, preventing
autoloading of module.
Fixes: 811b700630ff ("regulator: rn5t618: add driver for Ricoh RN5T618 regulators")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://lore.kernel.org/r/20191211221600.29438-1-andreas@kemnade.info
Signed-off-by: Mark Brown <broonie@kernel.org>
Shengjiu Wang [Wed, 11 Dec 2019 11:57:22 +0000 (19:57 +0800)]
ASoC: wm8962: fix lambda value
According to user manual, it is required that FLL_LAMBDA > 0
in all cases (Integer and Franctional modes).
Fixes: 9a76f1ff6e29 ("ASoC: Add initial WM8962 CODEC driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1576065442-19763-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Faiz Abbas [Fri, 6 Dec 2019 11:43:26 +0000 (17:13 +0530)]
mmc: sdhci: Update the tuning failed messages to pr_debug level
Tuning support in DDR50 speed mode was added in SD Specifications Part1
Physical Layer Specification v3.01. Its not possible to distinguish
between v3.00 and v3.01 from the SCR and that is why since
commit
4324f6de6d2e ("mmc: core: enable CMD19 tuning for DDR50 mode")
tuning failures are ignored in DDR50 speed mode.
Cards compatible with v3.00 don't respond to CMD19 in DDR50 and this
error gets printed during enumeration and also if retune is triggered at
any time during operation. Update the printk level to pr_debug so that
these errors don't lead to false error reports.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Cc: stable@vger.kernel.org # v4.4+
Link: https://lore.kernel.org/r/20191206114326.15856-1-faiz_abbas@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Rasmus Villemoes [Wed, 4 Dec 2019 08:54:46 +0000 (09:54 +0100)]
mmc: sdhci-of-esdhc: Revert "mmc: sdhci-of-esdhc: add erratum A-009204 support"
This reverts commit
5dd195522562542bc6ebe6e7bd47890d8b7ca93c.
First, the fix seems to be plain wrong, since the erratum suggests
waiting 5ms before setting setting SYSCTL[RSTD], but this msleep()
happens after the call of sdhci_reset() which is where that bit gets
set (if SDHCI_RESET_DATA is in mask).
Second, walking the whole device tree to figure out if some node has a
"fsl,p2020-esdhc" compatible string is hugely expensive - about 70 to
100 us on our mpc8309 board. Walking the device tree is done under a
raw_spin_lock, so this is obviously really bad on an -rt system, and a
waste of time on all.
In fact, since esdhc_reset() seems to get called around 100 times per
second, that mpc8309 now spends 0.8% of its time determining that
it is not a p2020. Whether those 100 calls/s are normal or due to some
other bug or misconfiguration, regularly hitting a 100 us
non-preemptible window is unacceptable.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191204085447.27491-1-linux@rasmusvillemoes.dk
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Chaotian Jing [Wed, 4 Dec 2019 07:19:58 +0000 (15:19 +0800)]
mmc: mediatek: fix CMD_TA to 2 for MT8173 HS200/HS400 mode
there is a chance that always get response CRC error after HS200 tuning,
the reason is that need set CMD_TA to 2. this modification is only for
MT8173.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: stable@vger.kernel.org
Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune")
Link: https://lore.kernel.org/r/20191204071958.18553-1-chaotian.jing@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Veerabhadrarao Badiganti [Tue, 26 Nov 2019 10:19:16 +0000 (10:19 +0000)]
mmc: sdhci-msm: Correct the offset and value for DDR_CONFIG register
The DDR_CONFIG register offset got updated after a specific
minor version of sdcc V4. This offset change has not been properly
taken care of while updating register changes for sdcc V5.
Correcting proper offset for this register.
Also updating this register value to reflect the recommended RCLK
delay.
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/0101016ea738ec72-fa0f852d-20f8-474a-80b2-4b0ef63b132c-000000@us-west-2.amazonses.com
Fixes: f15358885dda ("mmc: sdhci-msm: Define new Register address map")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Faiz Abbas [Thu, 28 Nov 2019 11:04:22 +0000 (16:34 +0530)]
Revert "mmc: sdhci: Fix incorrect switch to HS mode"
This reverts commit
c894e33ddc1910e14d6f2a2016f60ab613fd8b37.
This commit aims to treat SD High speed and SDR25 as the same while
setting UHS Timings in HOST_CONTROL2 which leads to failures with some
SD cards in AM65x. Revert this commit.
The issue this commit was trying to fix can be implemented in a platform
specific callback instead of common sdhci code.
Cc: <stable@vger.kernel.org>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20191128110422.25917-1-faiz_abbas@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Paul Cercueil [Tue, 10 Dec 2019 16:44:46 +0000 (17:44 +0100)]
pinctrl: ingenic: Fixup PIN_CONFIG_OUTPUT config
JZ4760 support was added in parallel of the previous patch so this one
slipped through. The first SoC to use the new register is the JZ4760 and
not the JZ4770, fix it here.
Fixes: 7009d046a601 ("pinctrl: ingenic: Handle PIN_CONFIG_OUTPUT config")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20191210164446.53912-1-paul@crapouillou.net
[Folded into OF dependency]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Matt Roper [Fri, 13 Dec 2019 00:15:10 +0000 (16:15 -0800)]
drm/i915/tgl: Drop Wa#1178
The TGL workaround database no longer shows Wa #1178 (or anything
similar under different workaround names/numbers) so we should be able
to drop it. In fact Swati just discovered that applying this workaround
is the root cause of some power well enable failures we've been seeing
in CI (gitlab issue 498).
Once we stop applying this WA, TGL no longer utilizes any of the special
handling provided by icl_combo_phy_aux_power_well_ops so we can just
drop back to using the standard hsw-style power well ops instead.
v3: Drop now-unused _TGL_AUX_ANAOVRD1_C definition too. (Lucas)
Closes: https://gitlab.freedesktop.org/drm/intel/issues/498
Fixes: deea06b47574 ("drm/i915/tgl: apply Display WA #1178 to fix type C dongles")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Swati Sharma <swati2.sharma@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191213001511.678070-3-matthew.d.roper@intel.com
(cherry picked from commit
ab3402581d0fa58e63e36875995f43ab02b4d0a0)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Matt Roper [Fri, 13 Dec 2019 00:15:09 +0000 (16:15 -0800)]
drm/i915/ehl: Define EHL powerwells independently of ICL
Outputs C and D on EHL are combo PHY outputs and thus should not be
using the same TC AUX power well handlers as ICL. And even though
icl_combo_phy_aux_power_well_ops works okay for EHL/JSL combo PHYs none
of its special handling is actually necessary for this platform:
* EHL/JSL don't actually need to program PORT_CL_DW12
* Display WA #1178 does not apply to EHL/JSL
Thus we can simply drop back to using our standard "hsw-style" power
well ops for EHL AUX power wells.
Bspec: 4301
Fixes: f722b8c1e2a2 ("drm/i915/ehl: All EHL ports are combo phys")
Cc: Jose Souza <jose.souza@intel.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191213001511.678070-2-matthew.d.roper@intel.com
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit
e8ab8d669d046a8e9b07707d2f00b9ba3e25d0ae)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Chris Wilson [Thu, 12 Dec 2019 15:42:24 +0000 (15:42 +0000)]
drm/i915: Set fence_work.ops before dma_fence_init
Since dma_fence_init may call ops (because of a meaningless
trace_dma_fence), we need to set the worker ops prior to that call.
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Fixes: 8e458fe2ee05 ("drm/i915: Generalise the clflush dma-worker")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212154224.1631531-1-chris@chris-wilson.co.uk
(cherry picked from commit
1bc9865d8df3e1c6857a27c4b2b8a9ce8f027349)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Chris Wilson [Tue, 10 Dec 2019 15:13:32 +0000 (15:13 +0000)]
drm/i915: Copy across scheduler behaviour flags across submit fences
We want the bonded request to have the same scheduler properties as its
master so that it is placed at the same depth in the queue. For example,
consider we have requests A, B and B', where B & B' are a bonded pair to
run in parallel on two engines.
A -> B
\- B'
B will run after A and so may be scheduled on an idle engine and wait on
A using a semaphore. B' sees B being executed and so enters the queue on
the same engine as A. As B' did not inherit the semaphore-chain from B,
it may have higher precedence than A and so preempts execution. However,
B' then sits on a semaphore waiting for B, who is waiting for A, who is
blocked by B.
Ergo B' needs to inherit the scheduler properties from B (i.e. the
semaphore chain) so that it is scheduled with the same priority as B and
will not be executed ahead of Bs dependencies.
Furthermore, to prevent the priorities changing via the expose fence on
B', we need to couple in the dependencies for PI. This requires us to
relax our sanity-checks that dependencies are strictly in order.
v2: Synchronise (B, B') execution on all platforms, regardless of using
a scheduler, any no-op syncs should be elided.
Fixes: ee1136908e9b ("drm/i915/execlists: Virtual engine bonding")
Closes: https://gitlab.freedesktop.org/drm/intel/issues/464
Testcase: igt/gem_exec_balancer/bonded-chain
Testcase: igt/gem_exec_balancer/bonded-semaphore
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210151332.3902215-1-chris@chris-wilson.co.uk
(cherry picked from commit
c81471f5e95c79c55687282ff6800f112b5d560b)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Animesh Manna [Thu, 5 Dec 2019 12:35:13 +0000 (18:05 +0530)]
drm/i915/dsb: Fix in mmio offset calculation of DSB instance
As the current usage is restricted to first DSB instance per pipe, so
existing code could not catch the issue to calculate the mmio offset
of different DSB instance per pipe. Corrected the offset calculation.
Fixes: a6e58d9a2e04 ("drm/i915/dsb: Check DSB engine status.")
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205123513.22603-1-animesh.manna@intel.com
(cherry picked from commit
d04a661a2c7169b48782aa5e9d85d4b4383d562e)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Aditya Pakki [Sun, 15 Dec 2019 15:34:08 +0000 (09:34 -0600)]
rfkill: Fix incorrect check to avoid NULL pointer dereference
In rfkill_register, the struct rfkill pointer is first derefernced
and then checked for NULL. This patch removes the BUG_ON and returns
an error to the caller in case rfkill is NULL.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Link: https://lore.kernel.org/r/20191215153409.21696-1-pakki001@umn.edu
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Greg Kroah-Hartman [Mon, 16 Dec 2019 09:12:43 +0000 (10:12 +0100)]
Merge tag 'misc-habanalabs-fixes-2019-12-14' of git://people.freedesktop.org/~gabbayo/linux into char-misc-linus
Oded writes:
This tag contains the following fixes:
- change dev_err to dev_err_ratelimited in hl_cs_wait_ioctl() as this can
be called by the user multiple times and can spam the kernel log.
- Eliminate GCC warnings by removing unused variables.
* tag 'misc-habanalabs-fixes-2019-12-14' of git://people.freedesktop.org/~gabbayo/linux:
habanalabs: remove variable 'val' set but not used
habanalabs: rate limit error msg on waiting for CS
Jens Axboe [Sun, 15 Dec 2019 17:57:46 +0000 (10:57 -0700)]
io_uring: fix sporadic -EFAULT from IORING_OP_RECVMSG
If we have to punt the recvmsg to async context, we copy all the
context. But since the iovec used can be either on-stack (if small) or
dynamically allocated, if it's on-stack, then we need to ensure we reset
the iov pointer. If we don't, then we're reusing old stack data, and
that can lead to -EFAULTs if things get overwritten.
Ensure we retain the right pointers for the iov, and free it as well if
we end up having to go beyond UIO_FASTIOV number of vectors.
Fixes: 03b1230ca12a ("io_uring: ensure async punted sendmsg/recvmsg requests copy data")
Reported-by: 李通洲 <carter.li@eoitek.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
H. Nikolaus Schaller [Sun, 15 Dec 2019 07:49:02 +0000 (08:49 +0100)]
ARM: bcm: Add missing sentinel to bcm2711_compat[]
commit
781fa0a95424 ("ARM: bcm: Add support for BCM2711 SoC")
breaks boot of many other platforms (e.g. OMAP or i.MX6) if
CONFIG_ARCH_BCM2835 is enabled in addition to some multiplatform
config (e.g. omap2plus_defconfig). The symptom is that the OMAP
based board does not show any activity beyond "Starting Kernel ..."
even with earlycon.
Reverting the mentioned commit makes it work again.
The real fix is to add the missing NULL sentinel to the
bcm2711_compat[] variable-length array.
Fixes: 781fa0a95424 ("ARM: bcm: Add support for BCM2711 SoC")
Acked-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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