To be consistent with the usual "get_resources" naming of driver
functions that acquire controller resources like clocks, PHY etc,
rename the function rockchip_pcie_parse_ep_dt() to
rockchip_pcie_ep_get_resources().
Damien Le Moal [Thu, 17 Oct 2024 01:58:41 +0000 (10:58 +0900)]
PCI: rockchip-ep: Fix MSI IRQ data mapping
The call to rockchip_pcie_prog_ep_ob_atu() used to map the PCI address
of MSI data to the memory window allocated on probe for IRQs is done
in rockchip_pcie_ep_send_msi_irq() assuming a fixed alignment to a
256B boundary of the PCI address. This is not correct as the alignment
constraint for the RK3399 PCI mapping depends on the number of bits of
address changing in the mapped region. This leads to an unstable system
which sometimes work and sometimes does not (crashing on paging faults
when memcpy_toio() or memcpy_fromio() are used).
Similar to regular data mapping, the MSI data mapping must thus be
handled according to the information provided by
rockchip_pcie_ep_align_addr(). Modify rockchip_pcie_ep_send_msi_irq()
to use rockchip_pcie_ep_align_addr() to correctly program entry 0 of
the ATU for sending MSI IRQs.
Damien Le Moal [Thu, 17 Oct 2024 01:58:40 +0000 (10:58 +0900)]
PCI: rockchip-ep: Implement the pci_epc_ops::align_addr() operation
The Rockchip PCIe endpoint controller handles PCIe transfers addresses
by masking the lower bits of the programmed PCI address and using the
same number of lower bits from the CPU address space used for the
mapping. For a PCI mapping of size bytes starting from pci_addr, the
number of bits masked is the number of address bits changing in the
address range [pci_addr..pci_addr + size - 1], up to 20 bits, that is,
up to 1MB mappings.
This means that when preparing a PCI address mapping, an endpoint
function driver must use an offset into the allocated controller
memory region that is equal to the mask of the starting PCI address
over rockchip_pcie_ep_ob_atu_num_bits() bits. This offset also
determines the maximum size of the mapping given the starting PCI
address and the fixed 1MB controller memory window size.
Implement the ->align_addr() endpoint controller operation to allow the
mapping alignment to be transparently handled by endpoint function
drivers through the function pci_epc_mem_map().
There is no need to loop over all regions to find the memory window used
to map an address. We can use rockchip_ob_region() to determine the
region index, together with a check that the address passed as argument
is the address used to create the mapping. Furthermore, the
ob_region_map bitmap should also be checked to ensure that we are not
attempting to unmap an address that is not mapped.
Damien Le Moal [Thu, 17 Oct 2024 01:58:37 +0000 (10:58 +0900)]
PCI: rockchip-ep: Use a macro to define EP controller .align feature
Introduce the macro ROCKCHIP_PCIE_AT_SIZE_ALIGN to initialize the .align
field of the controller epc_features structure to 256. This is defined
as a shift using the macro ROCKCHIP_PCIE_AT_MIN_NUM_BITS (to avoid
using the "magic" value 8 directly).
Damien Le Moal [Thu, 17 Oct 2024 01:58:36 +0000 (10:58 +0900)]
PCI: rockchip-ep: Fix address translation unit programming
The Rockchip PCIe endpoint controller handles PCIe transfers addresses
by masking the lower bits of the programmed PCI address and using the
same number of lower bits masked from the CPU address space used for the
mapping. For a PCI mapping of <size> bytes starting from <pci_addr>,
the number of bits masked is the number of address bits changing in the
address range [pci_addr..pci_addr + size - 1].
However, rockchip_pcie_prog_ep_ob_atu() calculates num_pass_bits only
using the size of the mapping, resulting in an incorrect number of mask
bits depending on the value of the PCI address to map.
Fix this by introducing the helper function
rockchip_pcie_ep_ob_atu_num_bits() to correctly calculate the number of
mask bits to use to program the address translation unit. The number of
mask bits is calculated depending on both the PCI address and size of
the mapping, and clamped between 8 and 20 using the macros
ROCKCHIP_PCIE_AT_MIN_NUM_BITS and ROCKCHIP_PCIE_AT_MAX_NUM_BITS. As
defined in the Rockchip RK3399 TRM V1.3 Part2, Sections 17.5.5.1.1 and
17.6.8.2.1, this clamping is necessary because:
1) The lower 8 bits of the PCI address to be mapped by the outbound
region are ignored. So a minimum of 8 address bits are needed and
imply that the PCI address must be aligned to 256.
2) The outbound memory regions are 1MB in size. So while we can specify
up to 63-bits for the PCI address (num_bits filed uses bits 0 to 5 of
the outbound address region 0 register), we must limit the number of
valid address bits to 20 to match the memory window maximum size (1
<< 20 = 1MB).
Because some endpoint controllers have requirements on the alignment of
the controller physical memory address that must be used to map a RC PCI
address region, the map PCI start address is not necessarily the desired
PCI base address to be mapped. This can result in map_pci_addr being
lower than pci_addr as documented. This results in map_size covering the
range map_pci_addr..pci_addr+pci_size.
The old text had the pci_addr twice instead of map_pci_addr..pci_addr,
so replace the erroneous kerneldoc string to reflect the actual range.
Zijun Hu [Thu, 7 Nov 2024 00:53:09 +0000 (08:53 +0800)]
PCI: endpoint: Clear secondary (not primary) EPC in pci_epc_remove_epf()
In addition to a primary endpoint controller, an endpoint function may be
associated with a secondary endpoint controller, epf->sec_epc, to provide
NTB (non-transparent bridge) functionality.
Previously, pci_epc_remove_epf() incorrectly cleared epf->epc instead of
epf->sec_epc when removing from the secondary endpoint controller.
Extend the epc->list_lock coverage and clear either epf->epc or
epf->sec_epc as indicated.
Zhongqiu Han [Tue, 5 Nov 2024 12:07:35 +0000 (20:07 +0800)]
PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
If platform_get_resource_byname() fails and returns NULL because DT lacks
an 'mmio' property for the MHI endpoint, dereferencing res->start will
cause a NULL pointer access. Add a check to prevent it.
Wang Jiang [Mon, 4 Nov 2024 10:05:14 +0000 (18:05 +0800)]
PCI: endpoint: Remove surplus return statement from pci_epf_test_clean_dma_chan()
Remove a surplus return statement from the void function that has been
added in the commit commit 8353813c88ef ("PCI: endpoint: Enable DMA
tests for endpoints with DMA capabilities").
Especially, as an empty return statements at the end of a void functions
serve little purpose.
This fixes the following checkpatch.pl script warning:
WARNING: void function return statements are not generally useful
#296: FILE: drivers/pci/endpoint/functions/pci-epf-test.c:296:
+ return;
+}
Damien Le Moal [Thu, 17 Oct 2024 01:06:48 +0000 (10:06 +0900)]
PCI: endpoint: test: Synchronously cancel command handler work
Use cancel_delayed_work_sync() in pci_epf_test_epc_deinit() to ensure
that the command handler is really stopped before proceeding with DMA
and BAR cleanup.
The same change is also done in pci_epf_test_link_down() to ensure that
the link down handling completes with the command handler fully stopped.
Damien Le Moal [Sat, 12 Oct 2024 11:32:46 +0000 (20:32 +0900)]
PCI: dwc: endpoint: Implement the pci_epc_ops::align_addr() operation
The function dw_pcie_prog_outbound_atu() used to program outbound ATU
entries for mapping RC PCI addresses to local CPU addresses does not
allow PCI addresses that are not aligned to the value of region_align
of struct dw_pcie. This value is determined from the iATU hardware
registers during probing of the iATU (done by dw_pcie_iatu_detect()).
This value is thus valid for all DWC PCIe controllers, and valid
regardless of the hardware configuration used when synthesizing the
DWC PCIe controller.
Implement the ->align_addr() endpoint controller operation to allow
this mapping alignment to be transparently handled by endpoint function
drivers through the function pci_epc_mem_map().
Damien Le Moal [Sat, 12 Oct 2024 11:32:45 +0000 (20:32 +0900)]
PCI: endpoint: test: Use pci_epc_mem_map/unmap()
Modify the endpoint test driver to use the functions pci_epc_mem_map()
and pci_epc_mem_unmap() for the read, write and copy tests. For each
test case, the transfer (dma or mmio) are executed in a loop to ensure
that potentially partial mappings returned by pci_epc_mem_map() are
correctly handled.
Damien Le Moal [Sat, 12 Oct 2024 11:32:44 +0000 (20:32 +0900)]
PCI: endpoint: Update documentation
Document the new functions pci_epc_mem_map() and pci_epc_mem_unmap().
Also add the documentation for the functions pci_epc_map_addr() and
pci_epc_unmap_addr() that were missing.
Some endpoint controllers have requirements on the alignment of the
controller physical memory address that must be used to map a RC PCI
address region. For instance, the endpoint controller of the RK3399 SoC
uses at most the lower 20 bits of a physical memory address region as
the lower bits of a RC PCI address region. For mapping a PCI address
region of size bytes starting from pci_addr, the exact number of
address bits used is the number of address bits changing in the address
range [pci_addr..pci_addr + size - 1]. For this example, this creates
the following constraints:
1) The offset into the controller physical memory allocated for a
mapping depends on the mapping size *and* the starting PCI address
for the mapping.
2) A mapping size cannot exceed the controller windows size (1MB) minus
the offset needed into the allocated physical memory, which can end
up being a smaller size than the desired mapping size.
Handling these constraints independently of the controller being used
in an endpoint function driver is not possible with the current EPC
API as only the ->align field in struct pci_epc_features is provided
but used for BAR (inbound ATU mappings) mapping only. A new API is
needed for function drivers to discover mapping constraints and handle
non-static requirements based on the RC PCI address range to access.
Introduce the endpoint controller operation ->align_addr() to allow
the EPC core functions to obtain the size and the offset into a
controller address region that must be allocated and mapped to access
a RC PCI address region. The size of the mapping provided by the
align_addr() operation can then be used as the size argument for the
function pci_epc_mem_alloc_addr() and the offset into the allocated
controller memory provided can be used to correctly handle data
transfers. For endpoint controllers that have PCI address alignment
constraints, the align_addr() operation may indicate upon return an
effective PCI address mapping size that is smaller (but not 0) than the
requested PCI address region size.
The controller ->align_addr() operation is optional: controllers that
do not have any alignment constraints for mapping RC PCI address regions
do not need to implement this operation. For such controllers, it is
always assumed that the mapping size is equal to the requested size of
the PCI region and that the mapping offset is 0.
The function pci_epc_mem_map() is introduced to use this new controller
operation (if it is defined) to handle controller memory allocation and
mapping to a RC PCI address region in endpoint function drivers.
This function first uses the ->align_addr() controller operation to
determine the controller memory address size (and offset into) needed
for mapping an RC PCI address region. The result of this operation is
used to allocate a controller physical memory region using
pci_epc_mem_alloc_addr() and then to map that memory to the RC PCI
address space with pci_epc_map_addr().
Since ->align_addr() () may indicate that not all of a RC PCI address
region can be mapped, pci_epc_mem_map() may only partially map the RC
PCI address region specified. It is the responsibility of the caller
(an endpoint function driver) to handle such smaller mapping by
repeatedly using pci_epc_mem_map() over the desried PCI address range.
The counterpart of pci_epc_mem_map() to unmap and free a mapped
controller memory address region is pci_epc_mem_unmap().
Both functions operate using the new struct pci_epc_map data structure.
This new structure represents a mapping PCI address, mapping effective
size, the size of the controller memory needed for the mapping as well
as the physical and virtual CPU addresses of the mapping (phys_base and
virt_base fields). For convenience, the physical and virtual CPU
addresses within that mapping to use to access the target RC PCI address
region are also provided (phys_addr and virt_addr fields).
Endpoint function drivers can use struct pci_epc_map to access the
mapped RC PCI address region using the ->virt_addr and ->pci_size
fields.
Damien Le Moal [Sat, 12 Oct 2024 11:32:42 +0000 (20:32 +0900)]
PCI: endpoint: Improve pci_epc_mem_alloc_addr()
There is no point in attempting to allocate memory from an endpoint
controller memory window if the requested size is larger than the memory
window size. Add a check to skip bitmap_find_free_region() calls for
such case. This check can be done without the mem->lock mutex held as
memory window sizes are constant and never modified at runtime.
Also change the final return to return NULL to simplify the code.
Introduce the epc core helper function pci_epc_function_is_valid() to
verify that an epc pointer, a physical function number and a virtual
function number are all valid. This avoids repeating the code pattern:
if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions)
return err;
leading to a build error when neither KVM_INTEL nor KVM_AMD support is
enabled:
arch/x86/kvm/x86.c: In function ‘kvm_arch_enable_virtualization’:
arch/x86/kvm/x86.c:12517:9: error: implicit declaration of function ‘cpu_emergency_register_virt_callback’ [-Wimplicit-function-declaration]
12517 | cpu_emergency_register_virt_callback(kvm_x86_ops.emergency_disable_virtualization_cpu);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/x86.c: In function ‘kvm_arch_disable_virtualization’:
arch/x86/kvm/x86.c:12522:9: error: implicit declaration of function ‘cpu_emergency_unregister_virt_callback’ [-Wimplicit-function-declaration]
12522 | cpu_emergency_unregister_virt_callback(kvm_x86_ops.emergency_disable_virtualization_cpu);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix the build by defining empty helper functions the same way the old
cpu_emergency_disable_virtualization() function was dealt with for the
same situation.
Maybe we could instead have made the call sites conditional, since the
callers (kvm_arch_{en,dis}able_virtualization()) have an empty weak
fallback. I'll leave that to the kvm people to argue about, this at
least gets the build going for that particular config.
Merge tag 'mailbox-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox
Pull mailbox updates from Jassi Brar:
- fix kconfig dependencies (mhu-v3, omap2+)
- use devie name instead of genereic imx_mu_chan as interrupt name
(imx)
- enable sa8255p and qcs8300 ipc controllers (qcom)
- Fix timeout during suspend mode (bcm2835)
- convert to use use of_property_match_string (mailbox)
- enable mt8188 (mediatek)
- use devm_clk_get_enabled helpers (spreadtrum)
- fix device-id typo (rockchip)
* tag 'mailbox-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
mailbox, remoteproc: omap2+: fix compile testing
dt-bindings: mailbox: qcom-ipcc: Document QCS8300 IPCC
dt-bindings: mailbox: qcom-ipcc: document the support for SA8255p
dt-bindings: mailbox: mtk,adsp-mbox: Add compatible for MT8188
mailbox: Use of_property_match_string() instead of open-coding
mailbox: bcm2835: Fix timeout during suspend mode
mailbox: sprd: Use devm_clk_get_enabled() helpers
mailbox: rockchip: fix a typo in module autoloading
mailbox: imx: use device name in interrupt name
mailbox: ARM_MHU_V3 should depend on ARM64
Merge tag 'i2c-for-6.12-rc1-additional_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
- fix DesignWare driver ENABLE-ABORT sequence, ensuring ABORT can
always be sent when needed
- check for PCLK in the SynQuacer controller as an optional clock,
allowing ACPI to directly provide the clock rate
- KEBA driver Kconfig dependency fix
- fix XIIC driver power suspend sequence
* tag 'i2c-for-6.12-rc1-additional_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: xiic: Fix pm_runtime_set_suspended() with runtime pm enabled
i2c: keba: I2C_KEBA should depend on KEBA_CP500
i2c: synquacer: Deal with optional PCLK correctly
i2c: designware: fix controller is holding SCL low while ENABLE bit is disabled
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"These are mostly minor updates.
There are two drivers (lpfc and mpi3mr) which missed the initial
pull and a core change to retry a start/stop unit which affect
suspend/resume"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
scsi: lpfc: Update lpfc version to 14.4.0.5
scsi: lpfc: Support loopback tests with VMID enabled
scsi: lpfc: Revise TRACE_EVENT log flag severities from KERN_ERR to KERN_WARNING
scsi: lpfc: Ensure DA_ID handling completion before deleting an NPIV instance
scsi: lpfc: Fix kref imbalance on fabric ndlps from dev_loss_tmo handler
scsi: lpfc: Restrict support for 32 byte CDBs to specific HBAs
scsi: lpfc: Update phba link state conditional before sending CMF_SYNC_WQE
scsi: lpfc: Add ELS_RSP cmd to the list of WQEs to flush in lpfc_els_flush_cmd()
scsi: mpi3mr: Update driver version to 8.12.0.0.50
scsi: mpi3mr: Improve wait logic while controller transitions to READY state
scsi: mpi3mr: Update MPI Headers to revision 34
scsi: mpi3mr: Use firmware-provided timestamp update interval
scsi: mpi3mr: Enhance the Enable Controller retry logic
scsi: sd: Fix off-by-one error in sd_read_block_characteristics()
scsi: pm8001: Do not overwrite PCI queue mapping
scsi: scsi_debug: Remove a useless memset()
scsi: pmcraid: Convert comma to semicolon
scsi: sd: Retry START STOP UNIT commands
scsi: mpi3mr: A performance fix
scsi: ufs: qcom: Update MODE_MAX cfg_bw value
...
Merge tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs
Pull more bcachefs updates from Kent Overstreet:
"Assorted minor syzbot fixes, and for bigger stuff:
Fix two disk accounting rewrite bugs:
- Disk accounting keys use the version field of bkey so that journal
replay can tell which updates have been applied to the btree.
This is set in the transaction commit path, after we've gotten our
journal reservation (and our time ordering), but the
BCH_TRANS_COMMIT_skip_accounting_apply flag that journal replay
uses was incorrectly skipping this for new updates generated prior
to journal replay.
This fixes the underlying cause of an assertion pop in
disk_accounting_read.
- A couple of fixes for disk accounting + device removal.
Checking if acocunting replicas entries were marked in the
superblock was being done at the wrong point, when deltas in the
journal could still zero them out, and then additionally we'd try
to add a missing replicas entry to the superblock without checking
if it referred to an invalid (removed) device.
A whole slew of repair fixes:
- fix infinite loop in propagate_key_to_snapshot_leaves(), this fixes
an infinite loop when repairing a filesystem with many snapshots
- fix incorrect transaction restart handling leading to occasional
"fsck counted ..." warnings
- fix warning in __bch2_fsck_err() for bkey fsck errors
- check_inode() in fsck now correctly checks if the filesystem was
clean
- there shouldn't be pending logged ops if the fs was clean, we now
check for this
- remove_backpointer() doesn't remove a dirent that doesn't actually
point to the inode
- many more fsck errors are AUTOFIX"
* tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs: (35 commits)
bcachefs: check_subvol_path() now prints subvol root inode
bcachefs: remove_backpointer() now checks if dirent points to inode
bcachefs: dirent_points_to_inode() now warns on mismatch
bcachefs: Fix lost wake up
bcachefs: Check for logged ops when clean
bcachefs: BCH_FS_clean_recovery
bcachefs: Convert disk accounting BUG_ON() to WARN_ON()
bcachefs: Fix BCH_TRANS_COMMIT_skip_accounting_apply
bcachefs: Check for accounting keys with bversion=0
bcachefs: rename version -> bversion
bcachefs: Don't delete unlinked inodes before logged op resume
bcachefs: Fix BCH_SB_ERRS() so we can reorder
bcachefs: Fix fsck warnings from bkey validation
bcachefs: Move transaction commit path validation to as late as possible
bcachefs: Fix disk accounting attempting to mark invalid replicas entry
bcachefs: Fix unlocked access to c->disk_sb.sb in bch2_replicas_entry_validate()
bcachefs: Fix accounting read + device removal
bcachefs: bch_accounting_mode
bcachefs: fix transaction restart handling in check_extents(), check_dirents()
bcachefs: kill inode_walker_entry.seen_this_pos
...
Merge tag 'x86-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Fix TDX MMIO #VE fault handling, and add two new Intel model numbers
for 'Pantherlake' and 'Diamond Rapids'"
* tag 'x86-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Add two Intel CPU model numbers
x86/tdx: Fix "in-kernel MMIO" check
Merge tag 'locking-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"lockdep:
- Fix potential deadlock between lockdep and RCU (Zhiguo Niu)
- Use str_plural() to address Coccinelle warning (Thorsten Blum)
- Add debuggability enhancement (Luis Claudio R. Goncalves)
static keys & calls:
- Fix static_key_slow_dec() yet again (Peter Zijlstra)
- Handle module init failure correctly in static_call_del_module()
(Thomas Gleixner)
- Replace pointless WARN_ON() in static_call_module_notify() (Thomas
Gleixner)
<linux/cleanup.h>:
- Add usage and style documentation (Dan Williams)
rwsems:
- Move is_rwsem_reader_owned() and rwsem_owner() under
CONFIG_DEBUG_RWSEMS (Waiman Long)
atomic ops, x86:
- Redeclare x86_32 arch_atomic64_{add,sub}() as void (Uros Bizjak)
- Introduce the read64_nonatomic macro to x86_32 with cx8 (Uros
Bizjak)"
Signed-off-by: Ingo Molnar <[email protected]>
* tag 'locking-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/rwsem: Move is_rwsem_reader_owned() and rwsem_owner() under CONFIG_DEBUG_RWSEMS
jump_label: Fix static_key_slow_dec() yet again
static_call: Replace pointless WARN_ON() in static_call_module_notify()
static_call: Handle module init failure correctly in static_call_del_module()
locking/lockdep: Simplify character output in seq_line()
lockdep: fix deadlock issue between lockdep and rcu
lockdep: Use str_plural() to fix Coccinelle warning
cleanup: Add usage and style documentation
lockdep: suggest the fix for "lockdep bfs error:-1" on print_bfs_bug
locking/atomic/x86: Redeclare x86_32 arch_atomic64_{add,sub}() as void
locking/atomic/x86: Introduce the read64_nonatomic macro to x86_32 with cx8
Merge tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"One urgent fix to vDSO as automated testing is failing due to this
bug"
* tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: vDSO: align stack for O2-optimized memcpy
Julia Lawall [Sat, 28 Sep 2024 19:26:22 +0000 (21:26 +0200)]
Reduce Coccinelle choices in string_choices.cocci
The isomorphism neg_if_exp negates the test of a ?: conditional,
making it unnecessary to have an explicit case for a negated test
with the branches inverted.
At the same time, we can disable neg_if_exp in cases where a
different API function may be more suitable for a negated test.
Finally, in the non-patch cases, E matches an expression with
parentheses around it, so there is no need to mention ()
explicitly in the pattern. The () are still needed in the patch
cases, because we want to drop them, if they are present.
Hongbo Li [Wed, 11 Sep 2024 01:09:27 +0000 (09:09 +0800)]
coccinelle: Remove unnecessary parentheses for only one possible change.
The parentheses are only needed if there is a disjunction, ie a
set of possible changes. If there is only one pattern, we can
remove these parentheses. Just like the format:
Hongbo Li [Wed, 11 Sep 2024 01:09:18 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_true_false() replacements
After str_true_false() has been introduced in the tree,
we can add rules for finding places where str_true_false()
can be used. A simple test can find over 10 locations.
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull x86 kvm updates from Paolo Bonzini:
"x86:
- KVM currently invalidates the entirety of the page tables, not just
those for the memslot being touched, when a memslot is moved or
deleted.
This does not traditionally have particularly noticeable overhead,
but Intel's TDX will require the guest to re-accept private pages
if they are dropped from the secure EPT, which is a non starter.
Actually, the only reason why this is not already being done is a
bug which was never fully investigated and caused VM instability
with assigned GeForce GPUs, so allow userspace to opt into the new
behavior.
- Advertise AVX10.1 to userspace (effectively prep work for the
"real" AVX10 functionality that is on the horizon)
- Rework common MSR handling code to suppress errors on userspace
accesses to unsupported-but-advertised MSRs
This will allow removing (almost?) all of KVM's exemptions for
userspace access to MSRs that shouldn't exist based on the vCPU
model (the actual cleanup is non-trivial future work)
- Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC)
splits the 64-bit value into the legacy ICR and ICR2 storage,
whereas Intel (APICv) stores the entire 64-bit value at the ICR
offset
- Fix a bug where KVM would fail to exit to userspace if one was
triggered by a fastpath exit handler
- Add fastpath handling of HLT VM-Exit to expedite re-entering the
guest when there's already a pending wake event at the time of the
exit
- Fix a WARN caused by RSM entering a nested guest from SMM with
invalid guest state, by forcing the vCPU out of guest mode prior to
signalling SHUTDOWN (the SHUTDOWN hits the VM altogether, not the
nested guest)
- Overhaul the "unprotect and retry" logic to more precisely identify
cases where retrying is actually helpful, and to harden all retry
paths against putting the guest into an infinite retry loop
- Add support for yielding, e.g. to honor NEED_RESCHED, when zapping
rmaps in the shadow MMU
- Refactor pieces of the shadow MMU related to aging SPTEs in
prepartion for adding multi generation LRU support in KVM
- Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is
enabled, i.e. when the CPU has already flushed the RSB
- Trace the per-CPU host save area as a VMCB pointer to improve
readability and cleanup the retrieval of the SEV-ES host save area
- Remove unnecessary accounting of temporary nested VMCB related
allocations
- Set FINAL/PAGE in the page fault error code for EPT violations if
and only if the GVA is valid. If the GVA is NOT valid, there is no
guest-side page table walk and so stuffing paging related metadata
is nonsensical
- Fix a bug where KVM would incorrectly synthesize a nested VM-Exit
instead of emulating posted interrupt delivery to L2
- Add a lockdep assertion to detect unsafe accesses of vmcs12
structures
- Harden eVMCS loading against an impossible NULL pointer deref
(really truly should be impossible)
- Minor SGX fix and a cleanup
- Misc cleanups
Generic:
- Register KVM's cpuhp and syscore callbacks when enabling
virtualization in hardware, as the sole purpose of said callbacks
is to disable and re-enable virtualization as needed
- Enable virtualization when KVM is loaded, not right before the
first VM is created
Together with the previous change, this simplifies a lot the logic
of the callbacks, because their very existence implies
virtualization is enabled
- Fix a bug that results in KVM prematurely exiting to userspace for
coalesced MMIO/PIO in many cases, clean up the related code, and
add a testcase
- Fix a bug in kvm_clear_guest() where it would trigger a buffer
overflow _if_ the gpa+len crosses a page boundary, which thankfully
is guaranteed to not happen in the current code base. Add WARNs in
more helpers that read/write guest memory to detect similar bugs
Selftests:
- Fix a goof that caused some Hyper-V tests to be skipped when run on
bare metal, i.e. NOT in a VM
- Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES
guest
- Explicitly include one-off assets in .gitignore. Past Sean was
completely wrong about not being able to detect missing .gitignore
entries
- Verify userspace single-stepping works when KVM happens to handle a
VM-Exit in its fastpath
- Misc cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
Documentation: KVM: fix warning in "make htmldocs"
s390: Enable KVM_S390_UCONTROL config in debug_defconfig
selftests: kvm: s390: Add VM run test case
KVM: SVM: let alternatives handle the cases when RSB filling is required
KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid
KVM: x86/mmu: Use KVM_PAGES_PER_HPAGE() instead of an open coded equivalent
KVM: x86/mmu: Add KVM_RMAP_MANY to replace open coded '1' and '1ul' literals
KVM: x86/mmu: Fold mmu_spte_age() into kvm_rmap_age_gfn_range()
KVM: x86/mmu: Morph kvm_handle_gfn_range() into an aging specific helper
KVM: x86/mmu: Honor NEED_RESCHED when zapping rmaps and blocking is allowed
KVM: x86/mmu: Add a helper to walk and zap rmaps for a memslot
KVM: x86/mmu: Plumb a @can_yield parameter into __walk_slot_rmaps()
KVM: x86/mmu: Move walk_slot_rmaps() up near for_each_slot_rmap_range()
KVM: x86/mmu: WARN on MMIO cache hit when emulating write-protected gfn
KVM: x86/mmu: Detect if unprotect will do anything based on invalid_list
KVM: x86/mmu: Subsume kvm_mmu_unprotect_page() into the and_retry() version
KVM: x86: Rename reexecute_instruction()=>kvm_unprotect_and_retry_on_failure()
KVM: x86: Update retry protection fields when forcing retry on emulation failure
KVM: x86: Apply retry protection to "unprotect on failure" path
KVM: x86: Check EMULTYPE_WRITE_PF_TO_SP before unprotecting gfn
...
Merge tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Clean up and improve vdso code: use SYM_* macros for function and
data annotations, add CFI annotations to fix GDB unwinding, optimize
the chacha20 implementation
- Add vfio-ap driver feature advertisement for use by libvirt and
mdevctl
* tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/vfio-ap: Driver feature advertisement
s390/vdso: Use one large alternative instead of an alternative branch
s390/vdso: Use SYM_DATA_START_LOCAL()/SYM_DATA_END() for data objects
tools: Add additional SYM_*() stubs to linkage.h
s390/vdso: Use macros for annotation of asm functions
s390/vdso: Add CFI annotations to __arch_chacha20_blocks_nostack()
s390/vdso: Fix comment within __arch_chacha20_blocks_nostack()
s390/vdso: Get rid of permutation constants
Merge tag 'modules-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain:
"There are a few fixes / cleanups from Vincent, Chunhui, and Petr, but
the most important part of this pull request is the Rust community
stepping up to help maintain both C / Rust code for future Rust module
support. We grow the set of modules maintainers by three now, and with
this hope to scale to help address what's needed to properly support
future Rust module support.
A lot of exciting stuff coming in future kernel releases.
This has been on linux-next for ~ 3 weeks now with no issues"
* tag 'modules-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: Refine kmemleak scanned areas
module: abort module loading when sysfs setup suffer errors
MAINTAINERS: scale modules with more reviewers
module: Clean up the description of MODULE_SIG_<type>
module: Split modules_install compression and in-kernel decompression
Merge tag 'fbdev-for-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
- crash fix in fbcon_putcs
- avoid a possible string memory overflow in sisfb
- minor code optimizations in omapfb and fbcon
* tag 'fbdev-for-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: sisfb: Fix strbuf array overflow
fbcon: break earlier in search_fb_in_map and search_for_mapped_con
fbdev: omapfb: Call of_node_put(ep) only once in omapdss_of_find_source_for_first_ep()
fbcon: Fix a NULL pointer dereference issue in fbcon_putcs
Merge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Regular fixes for the week to end the merge window, i915 and xe have a
few each, amdgpu makes up most of it with a bunch of SR-IOV related
fixes amongst others.
i915:
- Fix BMG support to UHBR13.5
- Two PSR fixes
- Fix colorimetry detection for DP
xe:
- Fix macro for checking minimum GuC version
- Fix CCS offset calculation for some BMG SKUs
- Fix locking on memory usage reporting via fdinfo and BO destroy
- Fix GPU page fault handler on a closed VM
- Fix overflow in oa batch buffer
amdgpu:
- MES 12 fix
- KFD fence sync fix
- SR-IOV fixes
- VCN 4.0.6 fix
- SDMA 7.x fix
- Bump driver version to note cleared VRAM support
- SWSMU fix
- CU occupancy logic fix
- SDMA queue fix"
* tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel: (79 commits)
drm/amd/pm: update workload mask after the setting
drm/amdgpu: bump driver version for cleared VRAM
drm/amdgpu: fix vbios fetching for SR-IOV
drm/amdgpu: fix PTE copy corruption for sdma 7
drm/amdkfd: Add SDMA queue quantum support for GFX12
drm/amdgpu/vcn: enable AV1 on both instances
drm/amdkfd: Fix CU occupancy for GFX 9.4.3
drm/amdkfd: Update logic for CU occupancy calculations
drm/amdgpu: skip coredump after job timeout in SRIOV
drm/amdgpu: sync to KFD fences before clearing PTEs
drm/amdgpu/mes12: set enable_level_process_quantum_check
drm/i915/dp: Fix colorimetry detection
drm/amdgpu/mes12: reduce timeout
drm/amdgpu/mes11: reduce timeout
drm/amdgpu: use GEM references instead of TTMs v2
drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
drm/amd/display: Fix kdoc entry for 'tps' in 'dc_process_dmub_dpia_set_tps_notification'
drm/amdgpu: update golden regs for gfx12
drm/amdgpu: clean up vbios fetching code
drm/amd/display: handle nulled pipe context in DCE110's set_drr()
...
Merge tag 'ceph-for-6.12-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"Three CephFS fixes from Xiubo and Luis and a bunch of assorted
cleanups"
* tag 'ceph-for-6.12-rc1' of https://github.com/ceph/ceph-client:
ceph: remove the incorrect Fw reference check when dirtying pages
ceph: Remove empty definition in header file
ceph: Fix typo in the comment
ceph: fix a memory leak on cap_auths in MDS client
ceph: flush all caps releases when syncing the whole filesystem
ceph: rename ceph_flush_cap_releases() to ceph_flush_session_cap_releases()
libceph: use min() to simplify code in ceph_dns_resolve_name()
ceph: Convert to use jiffies macro
ceph: Remove unused declarations
Merge tag 'v6.12-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- fix querying dentry for char/block special files
- small cleanup patches
* tag 'v6.12-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: Correct typos in multiple comments across various files
ksmbd: fix open failure from block and char device file
ksmbd: remove unsafe_memcpy use in session setup
ksmbd: Replace one-element arrays with flexible-array members
ksmbd: fix warning: comparison of distinct pointer types lacks a cast
Merge tag '6.12rc-more-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull xmb client fixes from Steve French:
- Noisy log message cleanup
- Important netfs fix for cifs crash in generic/074
- Three minor improvements to use of hashing (multichannel and mount
improvements)
- Fix decryption crash for large read with small esize
* tag '6.12rc-more-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: make SHA-512 TFM ephemeral
smb: client: make HMAC-MD5 TFM ephemeral
smb: client: stop flooding dmesg in smb2_calc_signature()
smb: client: allocate crypto only for primary server
smb: client: fix UAF in async decryption
netfs: Fix write oops in generic/346 (9p) and generic/074 (cifs)
Alan Huang [Tue, 27 Aug 2024 15:14:48 +0000 (23:14 +0800)]
bcachefs: Fix lost wake up
If the reader acquires the read lock and then the writer enters the slow
path, while the reader proceeds to the unlock path, the following scenario
can occur without the change:
writer: pcpu_read_count(lock) return 1 (so __do_six_trylock will return 0)
reader: this_cpu_dec(*lock->readers)
reader: smp_mb()
reader: state = atomic_read(&lock->state) (there is no waiting flag set)
writer: six_set_bitmask()
Kent Overstreet [Thu, 26 Sep 2024 20:19:58 +0000 (16:19 -0400)]
bcachefs: BCH_FS_clean_recovery
Add a filesystem flag to indicate whether we did a clean recovery -
using c->sb.clean after we've got rw is incorrect, since c->sb is
updated whenever we write the superblock.
Kent Overstreet [Sat, 28 Sep 2024 01:05:59 +0000 (21:05 -0400)]
bcachefs: Convert disk accounting BUG_ON() to WARN_ON()
We had a bug where disk accounting keys didn't always have their version
field set in journal replay; change the BUG_ON() to a WARN(), and
exclude this case since it's now checked for elsewhere (in the bkey
validate function).
This was added to avoid double-counting accounting keys in journal
replay. But applied incorrectly (easily done since it applies to the
transaction commit, not a particular update), it leads to skipping
in-mem accounting for real accounting updates, and failure to give them
a version number - which leads to journal replay becoming very confused
the next time around.
Kent Overstreet [Thu, 26 Sep 2024 19:19:17 +0000 (15:19 -0400)]
bcachefs: Don't delete unlinked inodes before logged op resume
Previously, check_inode() would delete unlinked inodes if they weren't
on the deleted list - this code dating from before there was a deleted
list.
But, if we crash during a logged op (truncate or finsert/fcollapse) of
an unlinked file, logged op resume will get confused if the inode has
already been deleted - instead, just add it to the deleted list if it
needs to be there; delete_dead_inodes runs after logged op resume.
Kent Overstreet [Thu, 26 Sep 2024 20:51:19 +0000 (16:51 -0400)]
bcachefs: Fix fsck warnings from bkey validation
__bch2_fsck_err() warns if the current task has a btree_trans object and
it wasn't passed in, because if it has to prompt for user input it has
to be able to unlock it.
But plumbing the btree_trans through bkey_validate(), as well as
transaction restarts, is problematic - so instead make bkey fsck errors
FSCK_AUTOFIX, which doesn't need to warn.
Kent Overstreet [Wed, 25 Sep 2024 20:46:06 +0000 (16:46 -0400)]
bcachefs: Fix accounting read + device removal
accounting read was checking if accounting replicas entries were marked
in the superblock prior to applying accounting from the journal,
which meant that a recently removed device could spuriously trigger a
"not marked in superblocked" error (when journal entries zero out the
offending counter).
Kent Overstreet [Tue, 24 Sep 2024 02:32:58 +0000 (22:32 -0400)]
bcachefs: fix transaction restart handling in check_extents(), check_dirents()
Dealing with outside state within a btree transaction is always tricky.
check_extents() and check_dirents() have to accumulate counters for
i_sectors and i_nlink (for subdirectories). There were two bugs:
- transaction commit may return a restart; therefore we have to commit
before accumulating to those counters
- get_inode_all_snapshots() may return a transaction restart, before
updating w->last_pos; then, on the restart,
check_i_sectors()/check_subdir_count() would see inodes that were not
for w->last_pos
Hongbo Li [Tue, 24 Sep 2024 01:41:46 +0000 (09:41 +0800)]
bcachefs: fix the memory leak in exception case
The pointer clean points the memory allocated by kmemdup, when the
return value of bch2_sb_clean_validate_late is not zero. The memory
pointed by clean is leaked. So we should free it in this case.
Fixes: a37ad1a3aba9 ("bcachefs: sb-clean.c") Signed-off-by: Hongbo Li <[email protected]> Signed-off-by: Kent Overstreet <[email protected]>
bcachefs: assign return error when iterating through layout
syzbot reported a null ptr deref in __copy_user [0]
In __bch2_read_super, when a corrupt backup superblock matches the
default opts offset, no error is assigned to ret and the freed superblock
gets through, possibly being assigned as the best sb in bch2_fs_open and
being later dereferenced, causing a fault. Assign EINVALID to ret when
iterating through layout.
Piotr Zalewski [Sun, 22 Sep 2024 15:18:01 +0000 (15:18 +0000)]
bcachefs: memset bounce buffer portion to 0 after key_sort_fix_overlapping
Zero-initialize part of allocated bounce buffer which wasn't touched by
subsequent bch2_key_sort_fix_overlapping to mitigate later uinit-value
use KMSAN bug[1].
After applying the patch reproducer still triggers stack overflow[2] but
it seems unrelated to the uninit-value use warning. After further
investigation it was found that stack overflow occurs because KMSAN adds
too many function calls[3]. Backtrace of where the stack magic number gets
smashed was added as a reply to syzkaller thread[3].
It was confirmed that task's stack magic number gets smashed after the code
path where KSMAN detects uninit-value use is executed, so it can be assumed
that it doesn't contribute in any way to uninit-value use detection.
Kent Overstreet [Mon, 23 Sep 2024 21:30:59 +0000 (17:30 -0400)]
bcachefs: Add extra padding in bkey_make_mut_noupdate()
This fixes a kasan splat in propagate_key_to_snapshot_leaves() -
varint_decode_fast() does reads (that it never uses) up to 7 bytes past
the end of the integer.
The values of the variables xres and yres are placed in strbuf.
These variables are obtained from strbuf1.
The strbuf1 array contains digit characters
and a space if the array contains non-digit characters.
Then, when executing sprintf(strbuf, "%ux%ux8", xres, yres);
more than 16 bytes will be written to strbuf.
It is suggested to increase the size of the strbuf array to 24.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Merge tag 'pm-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix idle states enumeration in the intel_idle driver on platforms
supporting multiple flavors of the C6 idle state (Artem Bityutskiy)"
* tag 'pm-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_idle: fix ACPI _CST matching for newer Xeon platforms
Merge tag 'random-6.12-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull more random number generator updates from Jason Donenfeld:
- Christophe realized that the LoongArch64 instructions could be
scheduled more similar to how GCC generates code, which Ruoyao
implemented, for a 5% speedup from basically some rearrangements
- An update to MAINTAINERS to match the right files
* tag 'random-6.12-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
LoongArch: vDSO: Tune chacha implementation
MAINTAINERS: make vDSO getrandom matches more generic
Merge tag 'bitmap-for-6.12' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
- switch all bitmamp APIs from inline to __always_inline (Brian Norris)
The __always_inline series improves on code generation, and now with
the latest compiler versions is required to avoid compilation
warnings. It spent enough in my backlog, and I'm thankful to Brian
Norris for taking over and moving it forward.
GENMASK_U128() is a prerequisite needed for arm64 development
* tag 'bitmap-for-6.12' of https://github.com/norov/linux:
lib/test_bits.c: Add tests for GENMASK_U128()
uapi: Define GENMASK_U128
nodemask: Switch from inline to __always_inline
cpumask: Switch from inline to __always_inline
bitmap: Switch from inline to __always_inline
find: Switch from inline to __always_inline
Merge tag 'tomoyo-pr-20240927' of git://git.code.sf.net/p/tomoyo/tomoyo
Pull tomoyo updates from Tetsuo Handa:
"One bugfix patch, one preparation patch, and one conversion patch.
TOMOYO is useful as an analysis tool for learning how a Linux system
works. My boss was hoping that SELinux's policy is generated from what
TOMOYO has observed. A translated paper describing it is available at
Although that attempt failed due to mapping problem between inode and
pathname, TOMOYO remains as an access restriction tool due to ability
to write custom policy by individuals.
I was delivering pure LKM version of TOMOYO (named AKARI) to users who
cannot afford rebuilding their distro kernels with TOMOYO enabled. But
since the LSM framework was converted to static calls, it became more
difficult to deliver AKARI to such users. Therefore, I decided to
update TOMOYO so that people can use mostly LKM version of TOMOYO with
minimal burden for both distributors and users"
* tag 'tomoyo-pr-20240927' of git://git.code.sf.net/p/tomoyo/tomoyo:
tomoyo: fallback to realpath if symlink's pathname does not exist
tomoyo: allow building as a loadable LSM module
tomoyo: preparation step for building as a loadable LSM module
Merge tag 'cxl-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull compute express link (cxl) updates from Dave Jiang:
"Major changes address HDM decoder initialization from DVSEC ranges,
refactoring the code related to cxl mailboxes to be independent of the
memory devices, and adding support for shared upstream link
access_coordinate calculation, as well as a change to remove locking
from memory notifier callback.
In addition, a number of misc cleanups and refactoring of the code are
also included.
Address HDM decoder initialization from DVSEC ranges:
- Only register non-zero DVSEC ranges
- Remove duplicate implementation of waiting for memory_info_valid
- Simplify the checking of mem_enabled in cxl_hdm_decode_init()
Refactor the code related to cxl mailboxes to be independent of the memory devices:
- Move cxl headers in include/linux/ to include/cxl
- Move all mailbox related data to 'struct cxl_mailbox'
- Refactor mailbox APIs with 'struct cxl_mailbox' as input instead of
memory device state
Add support for shared upstream link access_coordinate calculation for
configurations that have multiple targets under a switch or a root
port where the aggregated bandwidth can be greater than the upstream
link of the switch/RP upstream link:
- Preserve the CDAT access_coordinate from an endpoint
- Add the support for shared upstream link access_coordinate calculation
- Add documentation to explain how the calculations are done
Remove locking from memory notifier callback.
Misc cleanups:
- Convert devm_cxl_add_root() to return using ERR_CAST()
- cxl_test use dev_is_platform() instead of open coding
- Remove duplicate include of header core.h in core/cdat.c
- use scoped resource management to drop put_device() for cxl_port
- Use scoped_guard to drop device_lock() for cxl_port
- Refactor __devm_cxl_add_port() to drop gotos
- Rename cxl_setup_parent_dport to cxl_dport_init_aer and
cxl_dport_map_regs() to cxl_dport_map_ras()
- Refactor cxl_dport_init_aer() to be more concise
- Remove duplicate host_bridge->native_aer checking in
cxl_dport_init_ras_reporting()
- Fix comment for cxl_query_cmd()"
* tag 'cxl-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (21 commits)
cxl: Add documentation to explain the shared link bandwidth calculation
cxl: Calculate region bandwidth of targets with shared upstream link
cxl: Preserve the CDAT access_coordinate for an endpoint
cxl: Fix comment regarding cxl_query_cmd() return data
cxl: Convert cxl_internal_send_cmd() to use 'struct cxl_mailbox' as input
cxl: Move mailbox related bits to the same context
cxl: move cxl headers to new include/cxl/ directory
cxl/region: Remove lock from memory notifier callback
cxl/pci: simplify the check of mem_enabled in cxl_hdm_decode_init()
cxl/pci: Check Mem_info_valid bit for each applicable DVSEC
cxl/pci: Remove duplicated implementation of waiting for memory_info_valid
cxl/pci: Fix to record only non-zero ranges
cxl/pci: Remove duplicate host_bridge->native_aer checking
cxl/pci: cxl_dport_map_rch_aer() cleanup
cxl/pci: Rename cxl_setup_parent_dport() and cxl_dport_map_regs()
cxl/port: Refactor __devm_cxl_add_port() to drop goto pattern
cxl/port: Use scoped_guard()/guard() to drop device_lock() for cxl_port
cxl/port: Use __free() to drop put_device() for cxl_port
cxl: Remove duplicate included header file core.h
tools/testing/cxl: Use dev_is_platform()
...
selftests: vDSO: align stack for O2-optimized memcpy
When switching on -O2, gcc generates SSE2 instructions that assume a
16-byte aligned stack, which the standalone test's start point wasn't
aligning. Fix this with the usual alignment sequence.
Fixes: ecb8bd70d51 ("selftests: vDSO: build tests with O2 optimization") Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/oe-lkp/[email protected] Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
Merge tag 'loongarch-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Fix objtool about do_syscall() and Clang
- Enable generic CPU vulnerabilites support
- Enable ACPI BGRT handling
- Rework CPU feature probe from CPUCFG/IOCSR
- Add ARCH_HAS_SET_MEMORY support
- Add ARCH_HAS_SET_DIRECT_MAP support
- Improve hardware page table walker
- Simplify _percpu_read() and _percpu_write()
- Add advanced extended IRQ model documentions
- Some bug fixes and other small changes
* tag 'loongarch-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
Docs/LoongArch: Add advanced extended IRQ model description
LoongArch: Remove posix_types.h include from sigcontext.h
LoongArch: Fix memleak in pci_acpi_scan_root()
LoongArch: Simplify _percpu_read() and _percpu_write()
LoongArch: Improve hardware page table walker
LoongArch: Add ARCH_HAS_SET_DIRECT_MAP support
LoongArch: Add ARCH_HAS_SET_MEMORY support
LoongArch: Rework CPU feature probe from CPUCFG/IOCSR
LoongArch: Enable ACPI BGRT handling
LoongArch: Enable generic CPU vulnerabilites support
LoongArch: Remove STACK_FRAME_NON_STANDARD(do_syscall)
LoongArch: Set AS_HAS_THIN_ADD_SUB as y if AS_IS_LLVM
LoongArch: Enable objtool for Clang
objtool: Handle frame pointer related instructions
Merge tag 'sh-for-v6.12-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
"The first change by Gaosheng Cui removes unused declarations which
have been obsoleted since commit 5a4053b23262 ("sh: Kill off dead
boards.") and the second by his colleague Hongbo Li replaces the use
of the unsafe simple_strtoul() with the safer kstrtoul() function in
the sh interrupt controller driver code"
* tag 'sh-for-v6.12-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
sh: intc: Replace simple_strtoul() with kstrtoul()
sh: Remove unused declarations for make_maskreg_irq() and irq_mask_register
Merge tag 'for-linus-6.12-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
"A second round of Xen related changes and features:
- a small fix of the xen-pciback driver for a warning issued by
sparse
- support PCI passthrough when using a PVH dom0
- enable loading the kernel in PVH mode at arbitrary addresses,
avoiding conflicts with the memory map when running as a Xen dom0
using the host memory layout"
* tag 'for-linus-6.12-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/pvh: Add 64bit relocation page tables
x86/kernel: Move page table macros to header
x86/pvh: Set phys_base when calling xen_prepare_pvh()
x86/pvh: Make PVH entrypoint PIC for x86-64
xen: sync elfnote.h from xen tree
xen/pciback: fix cast to restricted pci_ers_result_t and pci_power_t
xen/privcmd: Add new syscall to get gsi from dev
xen/pvh: Setup gsi for passthrough device
xen/pci: Add a function to reset device for xen
- Dm-integrity: Support recalculation in the 'I' mode
- Revert "dm: requeue IO if mapping table not yet available"
- Dm-crypt: Small refactoring to make the code more readable
- Dm-cache: Remove pointless error check
- Dm: Fix spelling errors
- Dm-verity: Restart or panic on an I/O error if restart or panic was
requested
- Dm-verity: Fallback to platform keyring also if key in trusted
keyring is rejected
* tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits)
dm verity: fallback to platform keyring also if key in trusted keyring is rejected
dm-verity: restart or panic on an I/O error
dm: fix spelling errors
dm-cache: remove pointless error check
dm vdo: handle unaligned discards correctly
dm vdo indexer: Convert comma to semicolon
dm-crypt: Use common error handling code in crypt_set_keyring_key()
dm-crypt: Use up_read() together with key_put() only once in crypt_set_keyring_key()
Revert "dm: requeue IO if mapping table not yet available"
dm-integrity: check mac_size against HASH_MAX_DIGESTSIZE in sb_mac()
dm-integrity: support recalculation in the 'I' mode
dm integrity: Convert comma to semicolon
dm integrity: fix gcc 5 warning
dm: Make use of __assign_bit() API
dm integrity: Remove extra unlikely helper
dm: Convert to use ERR_CAST()
dm bufio: Remove NULL check of list_entry()
dm-crypt: Allow to specify the integrity key size as option
dm: Remove unused declaration and empty definition "dm_zone_map_bio"
dm delay: enhance kernel documentation
...