David Hildenbrand [Fri, 23 Apr 2021 08:20:25 +0000 (10:20 +0200)]
kernel/fork: factor out replacing the current MM exe_file
Let's factor the main logic out into replace_mm_exe_file(), such that
all mm->exe_file logic is contained in kernel/fork.c.
While at it, perform some simple cleanups that are possible now that
we're simplifying the individual functions.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
David Hildenbrand [Thu, 22 Apr 2021 10:53:00 +0000 (12:53 +0200)]
binfmt: don't use MAP_DENYWRITE when loading shared libraries via uselib()
uselib() is the legacy systemcall for loading shared libraries.
Nowadays, applications use dlopen() to load shared libraries, completely
implemented in user space via mmap().
For example, glibc uses MAP_COPY to mmap shared libraries. While this
maps to MAP_PRIVATE | MAP_DENYWRITE on Linux, Linux ignores any
MAP_DENYWRITE specification from user space in mmap.
With this change, all remaining in-tree users of MAP_DENYWRITE use it
to map an executable. We will be able to open shared libraries loaded
via uselib() writable, just as we already can via dlopen() from user
space.
This is one step into the direction of removing MAP_DENYWRITE from the
kernel. This can be considered a minor user space visible change.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Benjamin Hesmans [Fri, 3 Sep 2021 13:23:35 +0000 (15:23 +0200)]
netfilter: socket: icmp6: fix use-after-scope
Bug reported by KASAN:
BUG: KASAN: use-after-scope in inet6_ehashfn (net/ipv6/inet6_hashtables.c:40)
Call Trace:
(...)
inet6_ehashfn (net/ipv6/inet6_hashtables.c:40)
(...)
nf_sk_lookup_slow_v6 (net/ipv6/netfilter/nf_socket_ipv6.c:91
net/ipv6/netfilter/nf_socket_ipv6.c:146)
It seems that this bug has already been fixed by Eric Dumazet in the
past in:
commit
78296c97ca1f ("netfilter: xt_socket: fix a stack corruption bug")
But a variant of the same issue has been introduced in
commit
d64d80a2cde9 ("netfilter: x_tables: don't extract flow keys on early demuxed sks in socket match")
`daddr` and `saddr` potentially hold a reference to ipv6_var that is no
longer in scope when the call to `nf_socket_get_sock_v6` is made.
Fixes: d64d80a2cde9 ("netfilter: x_tables: don't extract flow keys on early demuxed sks in socket match")
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Benjamin Hesmans <benjamin.hesmans@tessares.net>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Konrad Rzeszutek Wilk [Fri, 3 Sep 2021 15:57:31 +0000 (11:57 -0400)]
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft into HEAD
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
iscsi_ibft: Fix isa_bus_to_virt not working under ARM
Xiaoguang Wang [Fri, 3 Sep 2021 14:24:36 +0000 (22:24 +0800)]
io_uring: fix possible poll event lost in multi shot mode
IIUC, IORING_POLL_ADD_MULTI is similar to epoll's edge-triggered mode,
that means once one pure poll request returns one event(cqe), we'll
need to read or write continually until EAGAIN is returned, then I think
there is a possible poll event lost race in multi shot mode:
t1 poll request add | |
t2 | |
t3 event happens | |
t4 task work add | |
t5 | task work run |
t6 | commit one cqe |
t7 | | user app handles cqe
t8 | new event happen |
t9 | add back to waitqueue |
t10 |
After t6 but before t9, if new event happens, there'll be no wakeup
operation, and if user app has picked up this cqe in t7, read or write
until EAGAIN is returned. In t8, new event happens and will be lost,
though this race window maybe small.
To fix this possible race, add poll request back to waitqueue before
committing cqe.
Fixes: 88e41cf928a6 ("io_uring: add multishot mode for IORING_OP_POLL_ADD")
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210903142436.5767-1-xiaoguang.wang@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Kate Hsuan [Fri, 3 Sep 2021 09:44:11 +0000 (17:44 +0800)]
libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
Many users are reporting that the Samsung 860 and 870 SSD are having
various issues when combined with AMD/ATI (vendor ID 0x1002) SATA
controllers and only completely disabling NCQ helps to avoid these
issues.
Always disabling NCQ for Samsung 860/870 SSDs regardless of the host
SATA adapter vendor will cause I/O performance degradation with well
behaved adapters. To limit the performance impact to ATI adapters,
introduce the ATA_HORKAGE_NO_NCQ_ON_ATI flag to force disable NCQ
only for these adapters.
Also, two libata.force parameters (noncqati and ncqati) are introduced
to disable and enable the NCQ for the system which equipped with ATI
SATA adapter and Samsung 860 and 870 SSDs. The user can determine NCQ
function to be enabled or disabled according to the demand.
After verifying the chipset from the user reports, the issue appears
on AMD/ATI SB7x0/SB8x0/SB9x0 SATA Controllers and does not appear on
recent AMD SATA adapters. The vendor ID of ATI should be 0x1002.
Therefore, ATA_HORKAGE_NO_NCQ_ON_AMD was modified to
ATA_HORKAGE_NO_NCQ_ON_ATI.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201693
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210903094411.58749-1-hpa@redhat.com
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Hans de Goede [Mon, 23 Aug 2021 09:52:20 +0000 (11:52 +0200)]
libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
Commit
ca6bfcb2f6d9 ("libata: Enable queued TRIM for Samsung SSD 860")
limited the existing ATA_HORKAGE_NO_NCQ_TRIM quirk from "Samsung SSD 8*",
covering all Samsung 800 series SSDs, to only apply to "Samsung SSD 840*"
and "Samsung SSD 850*" series based on information from Samsung.
But there is a large number of users which is still reporting issues
with the Samsung 860 and 870 SSDs combined with Intel, ASmedia or
Marvell SATA controllers and all reporters also report these problems
going away when disabling queued trims.
Note that with AMD SATA controllers users are reporting even worse
issues and only completely disabling NCQ helps there, this will be
addressed in a separate patch.
Fixes: ca6bfcb2f6d9 ("libata: Enable queued TRIM for Samsung SSD 860")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=203475
Cc: stable@vger.kernel.org
Cc: Kate Hsuan <hpa@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20210823095220.30157-1-hdegoede@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Fri, 3 Sep 2021 13:42:13 +0000 (07:42 -0600)]
bio: fix kerneldoc documentation for bio_alloc_kiocb()
Apparently the last fixup got butter fingered a bit, the correct variable
name is 'nr_vecs', not 'nr_iovecs'.
Link: https://lore.kernel.org/lkml/20210903164939.02f6e8c5@canb.auug.org.au/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Michael Ellerman [Fri, 3 Sep 2021 12:54:12 +0000 (22:54 +1000)]
Merge branch 'fixes' into next
Merge our fixes branch into next.
That lets us resolve a conflict in arch/powerpc/sysdev/xive/common.c.
Between
cbc06f051c52 ("powerpc/xive: Do not skip CPU-less nodes when
creating the IPIs"), which moved request_irq() out of xive_init_ipis(),
and
17df41fec5b8 ("powerpc: use IRQF_NO_DEBUG for IPIs") which added
IRQF_NO_DEBUG to that request_irq() call, which has now moved.
王贇 [Fri, 3 Sep 2021 02:27:18 +0000 (10:27 +0800)]
net: remove the unnecessary check in cipso_v4_doi_free
The commit
733c99ee8be9 ("net: fix NULL pointer reference in
cipso_v4_doi_free") was merged by a mistake, this patch try
to cleanup the mess.
And we already have the commit
e842cb60e8ac ("net: fix NULL
pointer reference in cipso_v4_doi_free") which fixed the root
cause of the issue mentioned in it's description.
Suggested-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Michael Wang <yun.wang@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nikolay Aleksandrov [Fri, 3 Sep 2021 09:34:15 +0000 (12:34 +0300)]
net: bridge: mcast: fix vlan port router deadlock
Before vlan/port mcast router support was added
br_multicast_set_port_router was used only with bh already disabled due
to the bridge port lock, but that is no longer the case and when it is
called to configure a vlan/port mcast router we can deadlock with the
timer, so always disable bh to make sure it can be called from contexts
with both enabled and disabled bh.
Fixes: 2796d846d74a ("net: bridge: vlan: convert mcast router global option to per-vlan entry")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Fri, 3 Sep 2021 12:29:07 +0000 (12:29 +0000)]
net: cs89x0: disable compile testing on powerpc
The ISA DMA API is inconsistent between architectures, and while
powerpc implements most of what the others have, it does not provide
isa_virt_to_bus():
../drivers/net/ethernet/cirrus/cs89x0.c: In function ‘net_open’:
../drivers/net/ethernet/cirrus/cs89x0.c:897:20: error: implicit declaration of function ‘isa_virt_to_bus’ [-Werror=implicit-function-declaration]
(unsigned long)isa_virt_to_bus(lp->dma_buff));
../drivers/net/ethernet/cirrus/cs89x0.c:894:3: note: in expansion of macro ‘cs89_dbg’
cs89_dbg(1, debug, "%s: dma %lx %lx\n",
I tried a couple of approaches to handle this consistently across
all architectures, but as this driver is really only used on
ARM, I ended up taking the easy way out and just disable compile
testing on powerpc.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Reported-by: kernel test robot <lkp@intel.com>
Fixes: 47fd22f2b847 ("cs89x0: rework driver configuration")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Carlo Lobrano [Fri, 3 Sep 2021 12:09:53 +0000 (14:09 +0200)]
net: usb: qmi_wwan: add Telit 0x1060 composition
This patch adds support for Telit LN920 0x1060 composition
0x1060: tty, adb, rmnet, tty, tty, tty, tty
Signed-off-by: Carlo Lobrano <c.lobrano@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Begunkov [Wed, 1 Sep 2021 23:38:23 +0000 (00:38 +0100)]
io_uring: prolong tctx_task_work() with flushing
io_submit_flush_completions() may enqueue linked requests for task_work
execution, so don't leave tctx_task_work() right after the tw list is
exhausted, but try to flush and then retry.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0755d4c2c36301447c63bdd4146c10477cea4249.1630539342.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pavel Begunkov [Wed, 1 Sep 2021 23:38:22 +0000 (00:38 +0100)]
io_uring: don't disable kiocb_done() CQE batching
Not passing issue_flags from kiocb_done() into __io_complete_rw() means
that completion batching for this case is disabled, e.g. for most of
buffered reads.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b2689462835c3ee28a5999ef4f9a581e24be04a2.1630539342.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Wed, 1 Sep 2021 20:15:59 +0000 (14:15 -0600)]
io_uring: ensure IORING_REGISTER_IOWQ_MAX_WORKERS works with SQPOLL
SQPOLL has a different thread doing submissions, we need to check for
that and use the right task context when updating the worker values.
Just hold the sqd->lock across the operation, this ensures that the
thread cannot go away while we poke at ->io_uring.
Link: https://github.com/axboe/liburing/issues/420
Fixes: 2e480058ddc2 ("io-wq: provide a way to limit max number of workers")
Reported-by: Johannes Lundberg <johalun0@gmail.com>
Tested-by: Johannes Lundberg <johalun0@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jin Yao [Thu, 2 Sep 2021 06:59:55 +0000 (14:59 +0800)]
perf tests: Add test for PMU aliases
A perf uncore PMU may have two PMU names, a real name and an alias.
Add one test case to verify that the real and alias names have the same
effect.
Iterate sysfs to get one event which has an alias and create an evlist
by adding two evsels. Evsel1 is created by event and evsel2 is created
by alias.
Test asserts:
evsel1->core.attr.type == evsel2->core.attr.type
evsel1->core.attr.config == evsel2->core.attr.config
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Link: http://lore.kernel.org/lkml/20210902065955.1299-3-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Kan Liang [Thu, 2 Sep 2021 06:59:54 +0000 (14:59 +0800)]
perf pmu: Add PMU alias support
A perf uncore PMU may have two PMU names, a real name and an alias. The
alias is exported at /sys/bus/event_source/devices/uncore_*/alias.
The perf tool should support the alias as well.
Add alias_name in the struct perf_pmu to store the alias. For the PMU
which doesn't have an alias. It's NULL.
Introduce two X86 specific functions to retrieve the real name and the
alias separately.
Only go through the sysfs to retrieve the mapping between the real name
and the alias once. The result is cached in a list, uncore_pmu_list.
Nothing changed for the other ARCHs.
With the patch, the perf tool can monitor the PMU with either the real
name or the alias.
Use the real name,
$ perf stat -e uncore_cha_2/event=1/ -x,
4044879584,,uncore_cha_2/event=1/,
2528059205,100.00,,
Use the alias,
$ perf stat -e uncore_type_0_2/event=1/ -x,
3659675336,,uncore_type_0_2/event=1/,
2287306455,100.00,,
Committer notes:
Rename 'struct perf_pmu_alias_name' to 'pmu_alias', the 'perf_' prefix
should be used for libperf, things inside just tools/perf/ are being
moved away from that prefix.
Also 'pmu_alias' is shorter and reflects the abstraction.
Also don't use 'pmu' as the name for variables for that type, we should
use that for the 'struct perf_pmu' variables, avoiding confusion. Use
'pmu_alias' for 'struct pmu_alias' variables.
Co-developed-by: Jin Yao <yao.jin@linux.intel.com>
Co-developed-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Link: http://lore.kernel.org/lkml/20210902065955.1299-2-yao.jin@linux.intel.com
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Colin Ian King [Thu, 2 Sep 2021 14:35:05 +0000 (15:35 +0100)]
seg6_iptunnel: Remove redundant initialization of variable err
The variable err is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Suzuki K Poulose [Wed, 28 Jul 2021 09:12:19 +0000 (10:12 +0100)]
perf session: Report collisions in AUX records
Just like the other flags in the AUX records, report a summary of the
Collisions if there were any.
Signed-off-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
LPU-Reference:
20210728091219.527886-1-suzuki.poulose@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Stephen Brennan [Wed, 1 Sep 2021 21:08:15 +0000 (14:08 -0700)]
perf script python: Allow reporting the [un]throttle PERF_RECORD_ meta event
perf_events may sometimes throttle an event due to creating too many
samples during a given timer tick.
As of now, the perf tool will not report on throttling, which means this
is a silent error.
Implement a callback for the throttle and unthrottle events within the
Python scripting engine, which can allow scripts to detect and report
when events may have been lost due to throttling.
The simplest script to report throttle events is:
def throttle(*args):
print("throttle" + repr(args))
def unthrottle(*args):
print("unthrottle" + repr(args))
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210901210815.133251-1-stephen.s.brennan@oracle.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Thu, 2 Sep 2021 08:18:00 +0000 (16:18 +0800)]
perf build: Report failure for testing feature libopencsd
When build perf tool with passing option 'CORESIGHT=1' explicitly, if
the feature test fails for library libopencsd, the build doesn't
complain the feature failure and continue to build the tool with
disabling the CoreSight feature insteadly.
This patch changes the building behaviour, when build perf tool with the
option 'CORESIGHT=1' and detect the failure for testing feature
libopencsd, the build process will be aborted and it shows the complaint
info.
Committer testing:
First make sure there is no opencsd library installed:
$ rpm -qa | grep -i csd
$ sudo rm -rf `find /usr/local -name "*csd*"`
$ find /usr/local -name "*csd*"
$
Then cleanup the perf build output directory:
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;
$
And try to build explicitely asking for coresight:
$ make O=/tmp/build/perf CORESIGHT=1 O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory '/var/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j24' parallel build
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
Makefile.config:493: *** Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1. Stop.
make[1]: *** [Makefile.perf:238: sub-make] Error 2
make: *** [Makefile:113: install-bin] Error 2
make: Leaving directory '/var/home/acme/git/perf/tools/perf'
$
Now install the opencsd library present in Fedora 34:
$ sudo dnf install opencsd-devel
<SNIP>
Installed:
opencsd-1.0.0-1.fc34.x86_64 opencsd-devel-1.0.0-1.fc34.x86_64
Complete!
$
Try again building with coresight:
$ make O=/tmp/build/perf CORESIGHT=1 O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory '/var/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j24' parallel build
Makefile.config:493: *** Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1. Stop.
make[1]: *** [Makefile.perf:238: sub-make] Error 2
make: *** [Makefile:113: install-bin] Error 2
make: Leaving directory '/var/home/acme/git/perf/tools/perf'
$
Since Fedora 34 is pretty recent, one assumes we need to get it from its
upstream git repository, use rpm to find where that is:
$ rpm -q --qf "%{URL}\n" opencsd
https://github.com/Linaro/OpenCSD
$
Go there, clone the repo, build it and install into /usr/local, then try
again:
$ cd ~acme/git/perf
$ make O=/tmp/build/perf VF=1 CORESIGHT=1 O=/tmp/build/perf -C tools/perf install-bin | grep -i opencsd
... libopencsd: [ on ]
PERF_VERSION = 5.14.g454719f67a3d
$ export LD_LIBRARY_PATH=/usr/local/lib
$ ldd ~/bin/perf | grep opencsd
libopencsd_c_api.so.1 => /usr/local/lib/libopencsd_c_api.so.1 (0x00007f28f78a4000)
libopencsd.so.1 => /usr/local/lib/libopencsd.so.1 (0x00007f28f6a2e000)
$
Now it works.
Requested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: http://lore.kernel.org/lkml/20210902081800.550016-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:09 +0000 (14:41 +0100)]
perf cs-etm: Show a warning for an unknown magic number
Currently perf reports "Cannot allocate memory" which isn't very helpful
for a potentially user facing issue. If we add a new magic number in
the future, perf will be able to report unrecognised magic numbers.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-10-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:08 +0000 (14:41 +0100)]
perf cs-etm: Print the decoder name
Use the real name of the decoder instead of hard-coding "ETM" to avoid
confusion when the trace is ETE. This also now distinguishes between
ETMv3 and ETMv4.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-9-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:07 +0000 (14:41 +0100)]
perf cs-etm: Create ETE decoder
If the magic number indicates ETE instantiate a OCSD_BUILTIN_DCD_ETE
decoder instead of OCSD_BUILTIN_DCD_ETMV4I. ETE is the new trace feature
for Armv9.
Testing performed
=================
* Old files with v0 and v1 headers for ETMv4 still open correctly
* New files with new magic number open on new versions of perf
* New files with new magic number fail to open on old versions of perf
* Decoding with the ETE decoder results in the same output as the ETMv4
decoder as long as there are no new ETE packet types
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-8-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:06 +0000 (14:41 +0100)]
perf cs-etm: Update OpenCSD decoder for ETE
OpenCSD v1.1.1 has a bug fix for the installation of the ETE decoder
headers. This also means that including headers separately for each
decoder is unnecessary so remove these.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-7-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:05 +0000 (14:41 +0100)]
perf cs-etm: Fix typo
TRCIRD2 should be TRCIDR2
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-6-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:04 +0000 (14:41 +0100)]
perf cs-etm: Save TRCDEVARCH register
When ETE is present save the TRCDEVARCH register and set a new magic
number. It will be used to configure the decoder in a later commit.
Old versions of perf will not be able to open files with this new magic
number, but old files will still work with newer versions of perf.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-5-james.clark@arm.com
[ Addressed some cosmetic suggestions by Suzuki Poulouse ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:03 +0000 (14:41 +0100)]
perf cs-etm: Refactor out ETMv4 header saving
Extract a function for saving the ETMv4 header because this will be used
for ETE in a later commit.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:02 +0000 (14:41 +0100)]
perf cs-etm: Initialise architecture based on TRCIDR1
Currently the architecture is hard coded as ARCH_V8, but from ETMv4.4
onwards this should be ARCH_AA64.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 6 Aug 2021 13:41:01 +0000 (14:41 +0100)]
perf cs-etm: Refactor initialisation of decoder params.
The initialisation of the decoder params is duplicated between
creation of the packet printer and packet decoder. Put them both
into one function so that future changes only need to be made in one
place.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/
20210806134109.
1182235-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Colin Ian King [Thu, 2 Sep 2021 23:00:11 +0000 (00:00 +0100)]
tipc: clean up inconsistent indenting
There is a statement that is indented one character too deeply,
clean this up.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 2 Sep 2021 22:56:23 +0000 (23:56 +0100)]
skbuff: clean up inconsistent indenting
There is a statement that is indented one character too deeply,
clean this up.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 2 Sep 2021 22:25:57 +0000 (23:25 +0100)]
drivers: net: smc911x: clean up inconsistent indenting
There are various function arguments that are not indented correctly,
clean these up with correct indentation.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 2 Sep 2021 22:17:45 +0000 (23:17 +0100)]
net: 3com: 3c59x: clean up inconsistent indenting
There is a statement that is not indented correctly, add in the
missing tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mat Martineau [Thu, 2 Sep 2021 18:51:19 +0000 (11:51 -0700)]
mptcp: Only send extra TCP acks in eligible socket states
Recent changes exposed a bug where specifically-timed requests to the
path manager netlink API could trigger a divide-by-zero in
__tcp_select_window(), as syzkaller does:
divide error: 0000 [#1] SMP KASAN NOPTI
CPU: 0 PID: 9667 Comm: syz-executor.0 Not tainted 5.14.0-rc6+ #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:__tcp_select_window+0x509/0xa60 net/ipv4/tcp_output.c:3016
Code: 44 89 ff e8 c9 29 e9 fd 45 39 e7 0f 8d 20 ff ff ff e8 db 28 e9 fd 44 89 e3 e9 13 ff ff ff e8 ce 28 e9 fd 44 89 e0 44 89 e3 99 <f7> 7c 24 04 29 d3 e9 fc fe ff ff e8 b7 28 e9 fd 44 89 f1 48 89 ea
RSP: 0018:
ffff888031ccf020 EFLAGS:
00010216
RAX:
0000000000000000 RBX:
0000000000000000 RCX:
0000000000040000
RDX:
0000000000000000 RSI:
ffff88811532c080 RDI:
0000000000000002
RBP:
0000000000000000 R08:
ffffffff835807c2 R09:
0000000000000000
R10:
0000000000000004 R11:
ffffed1020b92441 R12:
0000000000000000
R13:
1ffff11006399e08 R14:
0000000000000000 R15:
0000000000000000
FS:
00007fa4c8344700(0000) GS:
ffff88811ae00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000001b2f424000 CR3:
000000003e4e2003 CR4:
0000000000770ef0
PKRU:
55555554
Call Trace:
tcp_select_window net/ipv4/tcp_output.c:264 [inline]
__tcp_transmit_skb+0xc00/0x37a0 net/ipv4/tcp_output.c:1351
__tcp_send_ack.part.0+0x3ec/0x760 net/ipv4/tcp_output.c:3972
__tcp_send_ack net/ipv4/tcp_output.c:3978 [inline]
tcp_send_ack+0x7d/0xa0 net/ipv4/tcp_output.c:3978
mptcp_pm_nl_addr_send_ack+0x1ab/0x380 net/mptcp/pm_netlink.c:654
mptcp_pm_remove_addr+0x161/0x200 net/mptcp/pm.c:58
mptcp_nl_remove_id_zero_address+0x197/0x460 net/mptcp/pm_netlink.c:1328
mptcp_nl_cmd_del_addr+0x98b/0xd40 net/mptcp/pm_netlink.c:1359
genl_family_rcv_msg_doit.isra.0+0x225/0x340 net/netlink/genetlink.c:731
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0x341/0x5b0 net/netlink/genetlink.c:792
netlink_rcv_skb+0x148/0x430 net/netlink/af_netlink.c:2504
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x537/0x750 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x846/0xd80 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0x14e/0x190 net/socket.c:724
____sys_sendmsg+0x709/0x870 net/socket.c:2403
___sys_sendmsg+0xff/0x170 net/socket.c:2457
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2486
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
mptcp_pm_nl_addr_send_ack() was attempting to send a TCP ACK on the
first subflow in the MPTCP socket's connection list without validating
that the subflow was in a suitable connection state. To address this,
always validate subflow state when sending extra ACKs on subflows
for address advertisement or subflow priority change.
Fixes: 84dfe3677a6f ("mptcp: send out dedicated ADD_ADDR packet")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/229
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 2 Sep 2021 17:17:09 +0000 (10:17 -0700)]
pktgen: remove unused variable
pktgen_thread_worker() no longer needs wait variable, delete it.
Fixes: ef87979c273a ("pktgen: better scheduler friendliness")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shannon Nelson [Thu, 2 Sep 2021 16:34:07 +0000 (09:34 -0700)]
ionic: fix double use of queue-lock
Deadlock seen in an instance where the hwstamp configuration
is changed while the driver is running:
[ 3988.736671] schedule_preempt_disabled+0xe/0x10
[ 3988.736676] __mutex_lock.isra.5+0x276/0x4e0
[ 3988.736683] __mutex_lock_slowpath+0x13/0x20
[ 3988.736687] ? __mutex_lock_slowpath+0x13/0x20
[ 3988.736692] mutex_lock+0x2f/0x40
[ 3988.736711] ionic_stop_queues_reconfig+0x16/0x40 [ionic]
[ 3988.736726] ionic_reconfigure_queues+0x43e/0xc90 [ionic]
[ 3988.736738] ionic_lif_config_hwstamp_rxq_all+0x85/0x90 [ionic]
[ 3988.736751] ionic_lif_hwstamp_set_ts_config+0x29c/0x360 [ionic]
[ 3988.736763] ionic_lif_hwstamp_set+0x76/0xf0 [ionic]
[ 3988.736776] ionic_eth_ioctl+0x33/0x40 [ionic]
[ 3988.736781] dev_ifsioc+0x12c/0x420
[ 3988.736785] dev_ioctl+0x316/0x720
This can be demonstrated with "ptp4l -m -i <intf>"
To fix this, we pull the use of the queue_lock further up above the
callers of ionic_reconfigure_queues() and ionic_stop_queues_reconfig().
Fixes: 7ee99fc5ed2e ("ionic: pull hwstamp queue_lock up a level")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Helge Deller [Thu, 2 Sep 2021 21:24:42 +0000 (23:24 +0200)]
parisc: Fix unaligned-access crash in bootloader
Kernel v5.14 has various changes to optimize unaligned memory accesses,
e.g. commit
0652035a5794 ("asm-generic: unaligned: remove byteshift helpers").
Those changes triggered an unalignment-exception and thus crashed the
bootloader on parisc because the unaligned "output_len" variable now suddenly
was read word-wise while it was read byte-wise in the past.
Fix this issue by declaring the external output_len variable as char which then
forces the compiler to generate byte-accesses.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: John David Anglin <dave.anglin@bell.net>
Bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102162
Fixes: 8c031ba63f8f ("parisc: Unbreak bootloader due to gcc-7 optimizations")
Fixes: 0652035a5794 ("asm-generic: unaligned: remove byteshift helpers")
Cc: <stable@vger.kernel.org> # v5.14+
Masahiro Yamada [Mon, 30 Aug 2021 08:20:33 +0000 (17:20 +0900)]
kbuild: redo fake deps at include/ksym/*.h
Commit
0e0345b77ac4 ("kbuild: redo fake deps at include/config/*.h")
simplified the Kconfig/fixdep interaction a lot.
For CONFIG_FOO_BAR_BAZ, Kconfig now touches include/config/FOO_BAR_BAZ
instead of the previous include/config/foo/bar/baz.h .
This commit simplifies the TRIM_UNUSED_KSYMS feature in a similar way:
- delete .h suffix
- delete tolower()
- put everything in 1 directory
For EXPORT_SYMBOL(FOO_BAR_BAZ), scripts/adjust_autoksyms.sh now touches
include/ksym/FOO_BAR_BAZ instead of include/ksym/foo/bar/baz.h .
This is more precise, avoiding possibly unnecessary rebuilds.
EXPORT_SYMBOL(FOO_BAR_BAZ)
EXPORT_SYMBOL(_FOO_BAR_BAZ)
EXPORT_SYMBOL(__FOO_BAR_BAZ)
were previously mapped to the same header, include/ksym/foo/bar/baz.h
but now are handled separately.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Sat, 28 Aug 2021 09:51:01 +0000 (18:51 +0900)]
kbuild: clean up objtool_args slightly
The code:
$(if $(or $(CONFIG_GCOV_KERNEL),$(CONFIG_LTO_CLANG)), ...)
... can be simpled to:
$(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), ...)
Also, remove meaningless commas at the end of $(if ...).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Sat, 28 Aug 2021 09:50:59 +0000 (18:50 +0900)]
modpost: get the *.mod file path more simply
get_src_version() strips 'o' or 'lto.o' from the end of the object file
path (so, postfixlen is 1 or 5), then adds 'mod'.
If you look at the code closely, mod->name already holds the base path
with the extension stripped.
Most of the code changes made by commit
7ac204b545f2 ("modpost: lto:
strip .lto from module names") was actually unneeded.
sumversion.c does not need strends(), so it can get back local in
modpost.c again.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Ariel Marcovitch [Sun, 22 Aug 2021 19:22:01 +0000 (22:22 +0300)]
checkkconfigsymbols.py: Fix the '--ignore' option
It seems like the implementation of the --ignore option is broken.
In check_symbols_helper, when going through the list of files, a file is
added to the list of source files to check if it matches the ignore
pattern. Instead, as stated in the comment below this condition, the
file should be added if it doesn't match the pattern.
This means that when providing an ignore pattern, the only files that
will be checked will be the ones we want the ignore, in addition to the
Kconfig files that don't match the pattern (the check in
parse_kconfig_files is done right)
Signed-off-by: Ariel Marcovitch <arielmarcovitch@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:39 +0000 (09:57 +0900)]
kbuild: merge vmlinux_link() between ARCH=um and other architectures
For ARCH=um, ${CC} is used as the linker driver. Hence, the linker
options are prefixed with -Wl, .
Merge the similar code.
I replaced the -T option with the long option --script= so that it
works well with/without ${wl}.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:38 +0000 (09:57 +0900)]
kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh
arch/um/Makefile passes the -f option to the ln command:
linux: vmlinux
@echo ' LINK $@'
$(Q)ln -f $< $@
So, the hard link is always re-created, and the old one is removed
anyway.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:37 +0000 (09:57 +0900)]
kbuild: merge vmlinux_link() between the ordinary link and Clang LTO
When Clang LTO is enabled, vmlinux_link() reuses vmlinux.o instead of
re-linking ${KBUILD_VMLINUX_OBJS} and ${KBUILD_VMLINUX_LIBS}.
That is the only difference here, so merge the similar code.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:36 +0000 (09:57 +0900)]
kbuild: remove stale *.symversions
cmd_update_lto_symversions merges all the existing *.symversions, but
some of them might be stale.
If the last EXPORT_SYMBOL is removed from a C file, the *.symversions
file is not deleted or updated. It contains stale CRCs, but still they
will be used for linking the vmlinux or modules.
It is not a big deal when the EXPORT_SYMBOL is really removed. However,
when the EXPORT_SYMBOL is moved to another file, the same __crc_<symbol>
will appear twice in the merged *.symversions, possibly with different
CRCs if the function argument is changed at the same time. It would
confuse module versioning.
If no EXPORT_SYMBOL is found, let's remove *.symversions explicitly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:35 +0000 (09:57 +0900)]
kbuild: remove unused quiet_cmd_update_lto_symversions
This is not used anywhere because the short log is displayed when
it is used through a $(call cmd,...) invocation.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:57:33 +0000 (09:57 +0900)]
gen_compile_commands: extract compiler command from a series of commands
The current gen_compile_commands.py assumes that objects are always
built by a single command.
It makes sense to support cases where objects are built by a series of
commands:
cmd_<object> := <command1> ; <command2>
One use-case is that <command1> is a compiler command, and <command2>
an objtool command.
It allows *.cmd files to contain an objtool command so that any change
in it triggers object rebuilds.
If ; appears after the C source file, take the first command.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Nick Desaulniers [Tue, 17 Aug 2021 00:21:07 +0000 (17:21 -0700)]
x86: remove cc-option-yn test for -mtune=
As noted in the comment, -mtune= has been supported since GCC 3.4. The
minimum required version of GCC to build the kernel (as specified in
Documentation/process/changes.rst) is GCC 4.9.
tune is not immediately expanded. Instead it defines a macro that will
test via cc-option later values for -mtune=. But we can skip the test
whether to use -mtune= vs. -mcpu=.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nick Desaulniers [Tue, 17 Aug 2021 00:21:06 +0000 (17:21 -0700)]
arc: replace cc-option-yn uses with cc-option
cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)
Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)
This allows us to pursue removing cc-option-yn.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nick Desaulniers [Tue, 17 Aug 2021 00:21:04 +0000 (17:21 -0700)]
s390: replace cc-option-yn uses with cc-option
cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)
Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)
This allows us to pursue removing cc-option-yn.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Wed, 11 Aug 2021 16:43:12 +0000 (01:43 +0900)]
ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild
Use obj-y to clean up Makefile.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Thu, 29 Jul 2021 14:24:40 +0000 (23:24 +0900)]
sparc: move the install rule to arch/sparc/Makefile
Currently, the install target in arch/sparc/Makefile descends into
arch/sparc/boot/Makefile to invoke the shell script, but there is no
good reason to do so.
arch/sparc/Makefile can run the shell script directly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Fri, 28 May 2021 18:01:40 +0000 (03:01 +0900)]
security: remove unneeded subdir-$(CONFIG_...)
All of these are unneeded. The directories to descend are specified
by obj-$(CONFIG_...).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Greg Kroah-Hartman [Wed, 7 Apr 2021 05:34:17 +0000 (07:34 +0200)]
kbuild: sh: remove unused install script
The sh arch has a install.sh script, but no Makefile actually calls it.
Remove it to keep anyone from accidentally calling it in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Thu, 19 Aug 2021 00:01:14 +0000 (09:01 +0900)]
kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
When CONFIG_TRIM_UNUSED_KSYMS is enabled, I see some warnings like this:
nm: arch/x86/entry/vdso/vdso32/note.o: no symbols
$NM (both GNU nm and llvm-nm) warns when no symbol is found in the
object. Suppress the stderr.
Fangrui Song mentioned binutils>=2.37 `nm -q` can be used to suppress
"no symbols" [1], and llvm-nm>=13.0.0 supports -q as well.
We cannot use it for now, but note it as a TODO.
[1]: https://sourceware.org/bugzilla/show_bug.cgi?id=27408
Fixes: bbda5ec671d3 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Nathan Chancellor [Mon, 16 Aug 2021 20:52:47 +0000 (13:52 -0700)]
kbuild: Switch to 'f' variants of integrated assembler flag
It has been brought up a few times in various code reviews that clang
3.5 introduced -f{,no-}integrated-as as the preferred way to enable and
disable the integrated assembler, mentioning that -{no-,}integrated-as
are now considered legacy flags.
Switch the kernel over to using those variants in case there is ever a
time where clang decides to remove the non-'f' variants of the flag.
Also, fix a typo in a comment ("intergrated" -> "integrated").
Link: https://releases.llvm.org/3.5.0/tools/clang/docs/ReleaseNotes.html#new-compiler-flags
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nathan Chancellor [Mon, 16 Aug 2021 20:20:56 +0000 (13:20 -0700)]
kbuild: Shuffle blank line to improve comment meaning
-Wunused-but-set-variable and -Wunused-const-variable are both disabled
for the same reason but there is a blank line between them and no blank
line between -Wno-unused-const-variable and the block.
Shuffle the new line so that it is clear that the comment applied to
both flags and the next block is separate from them.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nathan Chancellor [Mon, 16 Aug 2021 20:20:55 +0000 (13:20 -0700)]
kbuild: Add a comment above -Wno-gnu
Whenever a warning is disabled, it is helpful for future travelers to
understand why the warning is disabled and why it is acceptable to do
so. Add a comment for -Wno-gnu so that people understand why it is
disabled.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nathan Chancellor [Mon, 16 Aug 2021 20:20:54 +0000 (13:20 -0700)]
kbuild: Remove -Wno-format-invalid-specifier from clang block
Turning on -Wformat does not reveal any instances of this warning across
several different builds so remove this line to keep the number of
disabled warnings as slim as possible.
This has been disabled since commit
61163efae020 ("kbuild: LLVMLinux:
Add Kbuild support for building kernel with Clang"), which does not
explain exactly why it was turned off but since it was so long ago in
terms of both the kernel and LLVM so it is possible that some bug got
fixed along the way.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Fri, 13 Aug 2021 06:30:05 +0000 (15:30 +0900)]
kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and filechk
if_changed, if_changed_dep, and if_changed_rule must have FORCE as a
prerequisite so the command line change is detected.
Documentation/kbuild/makefiles.rst clearly explains it:
Note: It is a typical mistake to forget the FORCE prerequisite.
However, not all people follow the document.
This mistake occurred again and again, so a compelling force is needed.
Show a warning if FORCE is missing in the prerequisite of if_changed
and friends. Same for filechk.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <n.schier@avm.de>
Masahiro Yamada [Fri, 13 Aug 2021 06:30:04 +0000 (15:30 +0900)]
kbuild: macrofy the condition of if_changed and friends
Add a new macro that expands into $(newer-prereqs)$(cmd-check).
It makes it easier to add common code for if_changed, if_changed_dep,
and if_changed_rule.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Masahiro Yamada [Thu, 19 Aug 2021 01:22:51 +0000 (10:22 +0900)]
x86/build/vdso: fix missing FORCE for *.so build rule
Add FORCE so that if_changed can detect the command line change.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Sami Tolvanen [Mon, 16 Aug 2021 18:05:19 +0000 (11:05 -0700)]
kbuild: Fix TRIM_UNUSED_KSYMS with LTO_CLANG
With CONFIG_LTO_CLANG, we currently link modules into native
code just before modpost, which means with TRIM_UNUSED_KSYMS
enabled, we still look at the LLVM bitcode in the .o files when
generating the list of used symbols. As the bitcode doesn't
yet have calls to compiler intrinsics and llvm-nm doesn't see
function references that only exist in function-level inline
assembly, we currently need a whitelist for TRIM_UNUSED_KSYMS to
work with LTO.
This change moves module LTO linking to happen earlier, and
thus avoids the issue with LLVM bitcode and TRIM_UNUSED_KSYMS
entirely, allowing us to also drop the whitelist from
gen_autoksyms.sh.
Link: https://github.com/ClangBuiltLinux/linux/issues/1369
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Alexander Lobakin <alobakin@pm.me>
Tested-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nick Desaulniers [Mon, 16 Aug 2021 20:25:01 +0000 (13:25 -0700)]
Makefile: remove stale cc-option checks
cc-option, cc-option-yn, and cc-disable-warning all invoke the compiler
during build time, and can slow down the build when these checks become
stale for our supported compilers, whose minimally supported versions
increases over time. See Documentation/process/changes.rst for the
current supported minimal versions (GCC 4.9+, clang 10.0.1+). Compiler
version support for these flags may be verified on godbolt.org.
The following flags are GCC only and supported since at least GCC 4.9.
Remove cc-option and cc-disable-warning tests.
* -fno-tree-loop-im
* -Wno-maybe-uninitialized
* -fno-reorder-blocks
* -fno-ipa-cp-clone
* -fno-partial-inlining
* -femit-struct-debug-baseonly
* -fno-inline-functions-called-once
* -fconserve-stack
The following flags are supported by all supported versions of GCC and
Clang. Remove their cc-option, cc-option-yn, and cc-disable-warning tests.
* -fno-delete-null-pointer-checks
* -fno-var-tracking
* -Wno-array-bounds
The following configs are made dependent on GCC, since they use GCC
specific flags.
* READABLE_ASM
* DEBUG_SECTION_MISMATCH
-mfentry was not supported by s390-linux-gnu-gcc until gcc-9+, add a
comment.
--param=allow-store-data-races=0 was renamed to -fno-allow-store-data-races
in the GCC 10 release; add a comment.
-Wmaybe-uninitialized (GCC specific) was being added for CONFIG_GCOV,
then again unconditionally; add it only once.
Also, base RETPOLINE_CFLAGS and RETPOLINE_VDSO_CFLAGS on CONFIC_CC_IS_*
then remove cc-option tests for Clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/1436
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nick Desaulniers [Tue, 10 Aug 2021 20:56:10 +0000 (13:56 -0700)]
MAINTAINERS: add Nick to Kbuild reviewers
Kees' post inspired me to get more involved. I still have a long way to
go in terms of mastery of GNU make, but at the least I can help with
more code review. It's also helpful for me to pick up on what's missing
from the LLVM ecosystem.
Link: https://security.googleblog.com/2021/08/linux-kernel-security-done-right.html
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Linus Torvalds [Thu, 2 Sep 2021 22:09:46 +0000 (15:09 -0700)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (ufs, qla2xxx,
target, smartpqi, lpfc, mpt3sas).
The core change causing the most churn was replacing the command
request field request with a macro, allowing us to offset map to it
and remove the redundant field; the same was also done for the tag
field.
The most impactful change is the final removal of scsi_ioctl, which
has been deprecated for over a decade"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (293 commits)
scsi: ufs: Fix ufshcd_request_sense_async() for Samsung KLUFG8RHDA-B2D1
scsi: ufs: ufs-exynos: Fix static checker warning
scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI
scsi: lpfc: Use the proper SCSI midlayer interfaces for PI
scsi: lpfc: Copyright updates for 14.0.0.1 patches
scsi: lpfc: Update lpfc version to 14.0.0.1
scsi: lpfc: Add bsg support for retrieving adapter cmf data
scsi: lpfc: Add cmf_info sysfs entry
scsi: lpfc: Add debugfs support for cm framework buffers
scsi: lpfc: Add support for maintaining the cm statistics buffer
scsi: lpfc: Add rx monitoring statistics
scsi: lpfc: Add support for the CM framework
scsi: lpfc: Add cmfsync WQE support
scsi: lpfc: Add support for cm enablement buffer
scsi: lpfc: Add cm statistics buffer support
scsi: lpfc: Add EDC ELS support
scsi: lpfc: Expand FPIN and RDF receive logging
scsi: lpfc: Add MIB feature enablement support
scsi: lpfc: Add SET_HOST_DATA mbox cmd to pass date/time info to firmware
scsi: fc: Add EDC ELS definition
...
Miquel Raynal [Thu, 2 Sep 2021 22:04:16 +0000 (00:04 +0200)]
Merge tag 'nand/for-5.15' into mtd/next
NAND core changes:
* Repair Miquel Raynal's email address in MAINTAINERS
* Fix a couple of spelling mistakes in Kconfig
* bbt: Skip bad blocks when searching for the BBT in NAND
* Remove never changed ret variable
Raw NAND changes:
* cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'
* intel: Fix error handling in probe
* omap: Fix kernel doc warning on 'calcuate' typo
* gpmc: Fix the ECC bytes vs. OOB bytes equation
SPI-NAND core changes:
* Properly fill the OOB area.
* Fix comment
SPI-NAND drivers changes:
* macronix: Add Quad support for serial NAND flash
Helge Deller [Thu, 2 Sep 2021 21:54:03 +0000 (23:54 +0200)]
parisc: Drop __arch_swab16(), arch_swab24(), _arch_swab32() and __arch_swab64() functions
No need to keep those as inline assembly functions, the compiler now
generates the same or even better optimized code.
Signed-off-by: Helge Deller <deller@gmx.de>
Linus Torvalds [Thu, 2 Sep 2021 21:47:21 +0000 (14:47 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This is quite a small cycle, no major series stands out. The HNS and
rxe drivers saw the most activity this cycle, with rxe being broken
for a good chunk of time. The significant deleted line count is due to
a SPDX cleanup series.
Summary:
- Various cleanup and small features for rtrs
- kmap_local_page() conversions
- Driver updates and fixes for: efa, rxe, mlx5, hfi1, qed, hns
- Cache the IB subnet prefix
- Rework how CRC is calcuated in rxe
- Clean reference counting in iwpm's netlink
- Pull object allocation and lifecycle for user QPs to the uverbs
core code
- Several small hns features and continued general code cleanups
- Fix the scatterlist confusion of orig_nents/nents introduced in an
earlier patch creating the append operation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (90 commits)
RDMA/mlx5: Relax DCS QP creation checks
RDMA/hns: Delete unnecessary blank lines.
RDMA/hns: Encapsulate the qp db as a function
RDMA/hns: Adjust the order in which irq are requested and enabled
RDMA/hns: Remove RST2RST error prints for hw v1
RDMA/hns: Remove dqpn filling when modify qp from Init to Init
RDMA/hns: Fix QP's resp incomplete assignment
RDMA/hns: Fix query destination qpn
RDMA/hfi1: Convert to SPDX identifier
IB/rdmavt: Convert to SPDX identifier
RDMA/hns: Bugfix for incorrect association between dip_idx and dgid
RDMA/hns: Bugfix for the missing assignment for dip_idx
RDMA/hns: Bugfix for data type of dip_idx
RDMA/hns: Fix incorrect lsn field
RDMA/irdma: Remove the repeated declaration
RDMA/core/sa_query: Retry SA queries
RDMA: Use the sg_table directly and remove the opencoded version from umem
lib/scatterlist: Fix wrong update of orig_nents
lib/scatterlist: Provide a dedicated function to support table append
RDMA/hns: Delete unused hns bitmap interface
...
Linus Torvalds [Thu, 2 Sep 2021 21:30:46 +0000 (14:30 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- Fix in i2c-hid driver for Elan touchpad quirk regression (Jim
Broadus)
- Quirk preventing ASUS Claymore from accidentally suspending whole
system (Luke D. Jones)
- Updates to the existing FW reporting mechanism, MP2 FW status checks,
adding proper power management support for amd-sfh (Basavaraj
Natikar)
- Regression fix for an issue in HID core that got uncovered by recent
USB core cleanup leading to issues when transfer_buffer_length is not
in line with wLength (Alan Stern)
- Memory leak fix in USB HID core (Anirudh Rayabharam)
- Improvement of stylus battery reporting (Dmitry Torokhov)
- Power management improvement for Goodix driver (Douglas Anderson)
- High-resolution scroll support for Magicmouse devices (José Expósito)
- Support for GHLive PS4 dongles (Daniel Nguyen)
- Support proper EV_MSC emissions to hid-apple (Vincent Lefevre)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (31 commits)
HID: usbhid: Simplify code in hid_submit_ctrl()
HID: usbhid: Fix warning caused by 0-length input reports
HID: usbhid: Fix flood of "control queue full" messages
HID: sony: Fix more ShanWan clone gamepads to not rumble when plugged in.
HID: sony: support for the ghlive ps4 dongles
HID: thrustmaster: clean up Makefile and adapt quirks
HID: i2c-hid: Fix Elan touchpad regression
HID: asus: Prevent Claymore sending suspend event
HID: amd_sfh: Add dyndbg prints for debugging
HID: amd_sfh: Add support for PM suspend and resume
HID: amd_sfh: Move hid probe after sensor is enabled
HID: amd_sfh: Add command response to check command status
HID: amd_sfh: Fix period data field to enable sensor
HID: logitech-hidpp: battery: provide CAPACITY property for newer devices
HID: thrustmaster: Fix memory leak in thrustmaster_interrupts()
HID: thrustmaster: Fix memory leak in remove
HID: thrustmaster: Fix memory leaks in probe
HID: elo: update the reference count of the usb device structure
HID: logitech-hidpp: Use 'atomic_inc_return' instead of hand-writing it
HID: apple: Add missing scan code event for keys handled by hid-apple
...
Linus Torvalds [Thu, 2 Sep 2021 21:22:56 +0000 (14:22 -0700)]
Merge tag 'pinctrl-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.15 kernel cycle, no
core changes at all this time, just driver work!
New drivers:
- New subdriver for Intel Keem Bay (an ARM-based SoC)
- New subdriver for Qualcomm MDM9607 and SM6115
- New subdriver for ST Microelectronics STM32MP135
- New subdriver for Freescale i.MX8ULP ("Ultra Low Power")
- New subdriver for Ingenic X2100
- Support for Qualcomm PMC8180, PMC8180C, SA8155p-adp PMIC GPIO
- Support Samsung Exynos850
- Support Renesas RZ/G2L
Enhancements:
- A major refactoring of the Rockchip driver, breaking part of it out
to a separate GPIO driver in drivers/gpio
- Pin bias support on Renesas r8a77995
- Add SCI pins support to Ingenic JZ4755 and JZ4760
- Mediatek device tree bindings converted to YAML"
* tag 'pinctrl-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (53 commits)
pinctrl: renesas: Add RZ/G2L pin and gpio controller driver
pinctrl: samsung: Add Exynos850 SoC specific data
dt-bindings: pinctrl: samsung: Add Exynos850 doc
MAINTAINERS: Add maintainers for amd-pinctrl driver
pinctrl: Add Intel Keem Bay pinctrl driver
dt-bindings: pinctrl: Add bindings for Intel Keembay pinctrl driver
pinctrl: zynqmp: Drop pinctrl_unregister for devm_ registered device
dt-bindings: pinctrl: qcom-pmic-gpio: Remove the interrupts property
dt-bindings: pinctrl: qcom-pmic-gpio: Convert qcom pmic gpio bindings to YAML
dt-bindings: pinctrl: mt8195: Use real world values for drive-strength arguments
dt-bindings: mediatek: convert pinctrl to yaml
arm: dts: mt8183: Move pinfunc to include/dt-bindings/pinctrl
arm: dts: mt8135: Move pinfunc to include/dt-bindings/pinctrl
pinctrl: ingenic: Add .max_register in regmap_config
pinctrl: ingenic: Fix bias config for X2000(E)
pinctrl: ingenic: Fix incorrect pull up/down info
pinctrl: Ingenic: Add pinctrl driver for X2100.
dt-bindings: pinctrl: Add bindings for Ingenic X2100.
pinctrl: Ingenic: Add SSI pins support for JZ4755 and JZ4760.
pinctrl: Ingenic: Improve the code.
...
Linus Torvalds [Thu, 2 Sep 2021 21:17:24 +0000 (14:17 -0700)]
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"Nothing changed in the clk framework core this time around. We did get
some updates to the basic clk types to use determine_rate for the
divider type and add a power of two fractional divider flag though.
Otherwise, this is a collection of clk driver updates. More than half
the diffstat is in the Qualcomm clk driver where we add a bunch of
data to describe clks on various SoCs and fix bugs. The other big new
thing in here is the Mediatek MT8192 clk driver. That's been under
review for a while and it's nice to see that it's finally upstream.
Beyond that it's the usual set of minor fixes and tweaks to clk
drivers. There are some non-clk driver bits in here which have all
been acked by the respective maintainers.
New Drivers:
- Support video, gpu, display clks on qcom sc7280 SoCs
- GCC clks on qcom MSM8953, SM4250/6115, and SM6350 SoCs
- Multimedia clks (MMCC) on qcom MSM8994/MSM8992
- RPMh clks on qcom SM6350 SoCs
- Support for Mediatek MT8192 SoCs
- Add display (DU and DSI) clocks on Renesas R-Car V3U
- Add I2C, DMAC, USB, sound (SSIF-2), GPIO, CANFD, and ADC clocks and
resets on Renesas RZ/G2L
Updates:
- Support the SD/OE pin on IDT VersaClock 5 and 6 clock generators
- Add power of two flag to fractional divider clk type
- Migrate some clk drivers to clk_divider_ops.determine_rate
- Migrate to clk_parent_data in gcc-sdm660
- Fix CLKOUT clocks on i.MX8MM and i.MX8MN by using imx_clk_hw_mux2
- Switch from .round_rate to .determine_rate in clk-divider-gate
- Fix clock tree update for TF-A controlled clocks for all i.MX8M
- Add missing M7 core clock for i.MX8MN
- YAML conversion of rk3399 clock controller binding
- Removal of GRF dependency for the rk3328/rk3036 pll types
- Drop CLK_IS_CRITICAL flag from Tegra fuse clk
- Make CLK_R9A06G032 Kconfig symbol invisible
- Convert various DT bindings to YAML"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (128 commits)
dt-bindings: clock: samsung: fix header path in example
clk: tegra: fix old-style declaration
clk: qcom: Add SM6350 GCC driver
MAINTAINERS: clock: include S3C and S5P in Samsung SoC clock entry
dt-bindings: clock: samsung: convert S5Pv210 AudSS to dtschema
dt-bindings: clock: samsung: convert Exynos AudSS to dtschema
dt-bindings: clock: samsung: convert Exynos4 to dtschema
dt-bindings: clock: samsung: convert Exynos3250 to dtschema
dt-bindings: clock: samsung: convert Exynos542x to dtschema
dt-bindings: clock: samsung: add bindings for Exynos external clock
dt-bindings: clock: samsung: convert Exynos5250 to dtschema
clk: vc5: Add properties for configuring SD/OE behavior
clk: vc5: Use dev_err_probe
dt-bindings: clk: vc5: Add properties for configuring the SD/OE pin
dt-bindings: clock: brcm,iproc-clocks: fix armpll properties
clk: zynqmp: Fix kernel-doc format
clk: at91: clk-generated: Limit the requested rate to our range
clk: ralink: avoid to set 'CLK_IS_CRITICAL' flag for gates
clk: zynqmp: Fix a memory leak
clk: zynqmp: Check the return type
...
Linus Torvalds [Thu, 2 Sep 2021 21:12:24 +0000 (14:12 -0700)]
Merge tag 'mailbox-v5.15' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- mtk:
- added support for mt8192 and mt8195
- minor fix regarding address shift
- qcom:
- added compatibles for MSM8953, SM6350 and SM6115
- enable loading IPCC as a module
- misc:
- change Altera maintainer
- fix sti kernel-doc warnings
* tag 'mailbox-v5.15' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: cmdq: add multi-gce clocks support for mt8195
mailbox: cmdq: add mediatek mailbox support for mt8195
dt-bindings: gce: add gce header file for mt8195
dt-bindings: mailbox: add definition for mt8195
mailbox: qcom-apcs-ipc: Add compatible for MSM8953 SoC
dt-bindings: mailbox: Add compatible for the MSM8953
dt-bindings: mailbox: qcom-ipcc: Add compatible for SM6350
mailbox: qcom: Add support for SM6115 APCS IPC
dt-bindings: mailbox: qcom: Add SM6115 APCS compatible
soc: mediatek: cmdq: add address shift in jump
mailbox: cmdq: add mt8192 support
dt-binding: gce: add gce header file for mt8192
MAINTAINERS: Replace Ley Foon Tan as Altera Mailbox maintainer
mailbox: qcom-ipcc: Enable loading QCOM_IPCC as a module
mailbox: sti: quieten kernel-doc warnings
Linus Torvalds [Thu, 2 Sep 2021 20:49:39 +0000 (13:49 -0700)]
Merge tag 'platform-drivers-x86-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- Move all the Intel drivers into their own subdir(s) (mostly Kate's
work)
- New meraki-mx100 platform driver
- Asus WMI driver enhancements, including support for
/sys/firmware/acpi/platform_profile
- New BIOS SAR driver for Intel M.2 WWAM modems
- Alder Lake support for the Intel PMC driver
- A whole bunch of cleanups + fixes all over the place"
* tag 'platform-drivers-x86-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
platform/x86: dell-smbios-wmi: Add missing kfree in error-exit from run_smbios_call
platform/x86: dell-smbios-wmi: Avoid false-positive memcpy() warning
platform/x86: ISST: use semi-colons instead of commas
platform/x86: asus-wmi: Fix "unsigned 'retval' is never less than zero" smatch warning
platform/x86: asus-wmi: Delete impossible condition
platform/x86: hp_accel: Convert to be a platform driver
platform/x86: hp_accel: Remove _INI method call
platform/mellanox: mlxbf-pmc: fix kernel-doc notation
platform/x86/intel: pmc/core: Add GBE Package C10 fix for Alder Lake PCH
platform/x86/intel: pmc/core: Add Alder Lake low power mode support for pmc core
platform/x86/intel: pmc/core: Add Latency Tolerance Reporting (LTR) support to Alder Lake
platform/x86/intel: pmc/core: Add Alderlake support to pmc core driver
platform/x86: intel-wmi-thunderbolt: Move to intel sub-directory
platform/x86: intel-wmi-sbl-fw-update: Move to intel sub-directory
platform/x86: intel-vbtn: Move to intel sub-directory
platform/x86: intel_oaktrail: Move to intel sub-directory
platform/x86: intel_int0002_vgpio: Move to intel sub-directory
platform/x86: intel-hid: Move to intel sub-directory
platform/x86: intel_atomisp2: Move to intel sub-directory
platform/x86: intel_speed_select_if: Move to intel sub-directory
...
Linus Torvalds [Thu, 2 Sep 2021 20:41:33 +0000 (13:41 -0700)]
Merge tag 'vfio-v5.15-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Fix dma-valid return WAITED implementation (Anthony Yznaga)
- SPDX license cleanups (Cai Huoqing)
- Split vfio-pci-core from vfio-pci and enhance PCI driver matching to
support future vendor provided vfio-pci variants (Yishai Hadas, Max
Gurtovoy, Jason Gunthorpe)
- Replace duplicated reflck with core support for managing first open,
last close, and device sets (Jason Gunthorpe, Max Gurtovoy, Yishai
Hadas)
- Fix non-modular mdev support and don't nag about request callback
support (Christoph Hellwig)
- Add semaphore to protect instruction intercept handler and replace
open-coded locks in vfio-ap driver (Tony Krowiak)
- Convert vfio-ap to vfio_register_group_dev() API (Jason Gunthorpe)
* tag 'vfio-v5.15-rc1' of git://github.com/awilliam/linux-vfio: (37 commits)
vfio/pci: Introduce vfio_pci_core.ko
vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'
vfio: Use select for eventfd
PCI / VFIO: Add 'override_only' support for VFIO PCI sub system
PCI: Add 'override_only' field to struct pci_device_id
vfio/pci: Move module parameters to vfio_pci.c
vfio/pci: Move igd initialization to vfio_pci.c
vfio/pci: Split the pci_driver code out of vfio_pci_core.c
vfio/pci: Include vfio header in vfio_pci_core.h
vfio/pci: Rename ops functions to fit core namings
vfio/pci: Rename vfio_pci_device to vfio_pci_core_device
vfio/pci: Rename vfio_pci_private.h to vfio_pci_core.h
vfio/pci: Rename vfio_pci.c to vfio_pci_core.c
vfio/ap_ops: Convert to use vfio_register_group_dev()
s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM notification
s390/vfio-ap: r/w lock for PQAP interception handler function pointer
vfio/type1: Fix vfio_find_dma_valid return
vfio-pci/zdev: Remove repeated verbose license text
vfio: platform: reset: Convert to SPDX identifier
vfio: Remove struct vfio_device_ops open/release
...
Konrad Rzeszutek Wilk [Thu, 2 Sep 2021 00:22:11 +0000 (20:22 -0400)]
iscsi_ibft: Fix isa_bus_to_virt not working under ARM
The isa_bus_to_virt is only needed under X86 and in fact the code
that sets the ibft_phys_addr is only compiled under X86.
As such lets just ifdef the code.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Vijayendra Suman <vijayendra.suman@oracle.com>
CC: Maurizio Lombardi <mlombard@redhat.com>
CC: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Remove the ibft_phys_addr as it is defined in iscsi_ibft.h
Linus Torvalds [Thu, 2 Sep 2021 20:20:11 +0000 (13:20 -0700)]
Merge tag 'for-linus-5.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- some small cleanups
- a fix for a bug when running as Xen PV guest which could result in
not all memory being transferred in case of a migration of the guest
- a small series for getting rid of code for supporting very old Xen
hypervisor versions nobody should be using since many years now
- a series for hardening the Xen block frontend driver
- a fix for Xen PV boot code issuing warning messages due to a stray
preempt_disable() on the non-boot processors
* tag 'for-linus-5.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: remove stray preempt_disable() from PV AP startup code
xen/pcifront: Removed unnecessary __ref annotation
x86: xen: platform-pci-unplug: use pr_err() and pr_warn() instead of raw printk()
drivers/xen/xenbus/xenbus_client.c: fix bugon.cocci warnings
xen/blkfront: don't trust the backend response data blindly
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: read response from backend only once
xen: assume XENFEAT_gnttab_map_avail_bits being set for pv guests
xen: assume XENFEAT_mmu_pt_update_preserve_ad being set for pv guests
xen: check required Xen features
xen: fix setting of max_pfn in shared_info
Linus Torvalds [Thu, 2 Sep 2021 20:16:00 +0000 (13:16 -0700)]
Merge tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture updates from Helge Deller:
- Fix a kernel crash when a signal is delivered to bad userspace stack
- Fix fall-through warnings in math-emu code
- Increase size of gcc stack frame check
- Switch coding from 'pci_' to 'dma_' API
- Make struct parisc_driver::remove() return void
- Some parisc related Makefile changes
- Minor cleanups, e.g. change to octal permissions, fix macro
collisions, fix PMD_ORDER collision, replace spaces with tabs
* tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: math-emu: Fix fall-through warnings
parisc: fix crash with signals and alloca
parisc: Fix compile failure when building 64-bit kernel natively
parisc: ccio-dma.c: Added tab instead of spaces
parisc/parport_gsc: switch from 'pci_' to 'dma_' API
parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild
parisc: switch from 'pci_' to 'dma_' API
parisc: Make struct parisc_driver::remove() return void
parisc: remove unused arch/parisc/boot/install.sh and its phony target
parisc: Rename PMD_ORDER to PMD_TABLE_ORDER
parisc: math-emu: Avoid "fmt" macro collision
parisc: Increase size of gcc stack frame check
parisc: Replace symbolic permissions with octal permissions
Linus Torvalds [Thu, 2 Sep 2021 20:12:44 +0000 (13:12 -0700)]
Merge tag 'xtensa-
20210902' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG
- add fairness to handling IRQs of the same priority
- fix pointer usage before NULL check in ISS console driver
- build system cleanups
* tag 'xtensa-
20210902' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: move core-y in arch/xtensa/Makefile to arch/xtensa/Kbuild
xtensa: build platform directories unconditionally
xtensa: do not build variants directory
xtensa: remove unneeded exports
xtensa: ISS: don't use string pointer before NULL check
xtensa: add fairness to IRQ handling
xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG
Linus Torvalds [Thu, 2 Sep 2021 20:00:15 +0000 (13:00 -0700)]
Merge tag 'locking-debug-2021-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull memory model updates from Ingo Molnar:
"LKMM updates:
- Update documentation and code example
KCSAN updates:
- Introduce CONFIG_KCSAN_STRICT (which RCU uses)
- Optimize use of get_ctx() by kcsan_found_watchpoint()
- Rework atomic.h into permissive.h
- Add the ability to ignore writes that change only one bit of a
given data-racy variable.
- Improve comments"
* tag 'locking-debug-2021-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/memory-model: Document data_race(READ_ONCE())
tools/memory-model: Heuristics using data_race() must handle all values
tools/memory-model: Add example for heuristic lockless reads
tools/memory-model: Make read_foo_diagnostic() more clearly diagnostic
kcsan: Make strict mode imply interruptible watchers
kcsan: permissive: Ignore data-racy 1-bit value changes
kcsan: Print if strict or non-strict during init
kcsan: Rework atomic.h into permissive.h
kcsan: Reduce get_ctx() uses in kcsan_found_watchpoint()
kcsan: Introduce CONFIG_KCSAN_STRICT
kcsan: Remove CONFIG_KCSAN_DEBUG
kcsan: Improve some Kconfig comments
Linus Torvalds [Thu, 2 Sep 2021 19:51:41 +0000 (12:51 -0700)]
Merge tag 'integrity-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem updates from Mimi Zohar:
- Limit the allowed hash algorithms when writing security.ima xattrs or
verifying them, based on the IMA policy and the configured hash
algorithms.
- Return the calculated "critical data" measurement hash and size to
avoid code duplication. (Preparatory change for a proposed LSM.)
- and a single patch to address a compiler warning.
* tag 'integrity-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
IMA: reject unknown hash algorithms in ima_get_hash_algo
IMA: prevent SETXATTR_CHECK policy rules with unavailable algorithms
IMA: introduce a new policy option func=SETXATTR_CHECK
IMA: add a policy option to restrict xattr hash algorithms on appraisal
IMA: add support to restrict the hash algorithms used for file appraisal
IMA: block writes of the security.ima xattr with unsupported algorithms
IMA: remove the dependency on CRYPTO_MD5
ima: Add digest and digest_len params to the functions to measure a buffer
ima: Return int in the functions to measure a buffer
ima: Introduce ima_get_current_hash_algo()
IMA: remove -Wmissing-prototypes warning
Linus Torvalds [Thu, 2 Sep 2021 19:35:34 +0000 (12:35 -0700)]
Merge tag 'hardening-v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
- Expand lib/test_stackinit to include more initialization styles
- Improve Kconfig for CLang's auto-var-init feature
- Introduce support for GCC's zero-call-used-regs feature
* tag 'hardening-v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lib/test_stackinit: Add assigned initializers
lib/test_stackinit: Allow building stand-alone
lib/test_stackinit: Fix static initializer test
hardening: Clarify Kconfig text for auto-var-init
hardening: Introduce CONFIG_ZERO_CALL_USED_REGS
Linus Torvalds [Thu, 2 Sep 2021 19:32:12 +0000 (12:32 -0700)]
Merge tag 'linux-kselftest-kunit-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"This KUnit update for Linux 5.15-rc1 adds new features and tests:
Tool:
- support for '--kernel_args' to allow setting module params
- support for '--raw_output' option to show just the kunit output
during make
Tests:
- new KUnit tests for checksums and timestamps
- Print test statistics on failure
- Integrates UBSAN into the KUnit testing framework. It fails KUnit
tests whenever it reports undefined behavior"
* tag 'linux-kselftest-kunit-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: Print test statistics on failure
kunit: tool: make --raw_output support only showing kunit output
kunit: tool: add --kernel_args to allow setting module params
kunit: ubsan integration
fat: Add KUnit tests for checksums and timestamps
Linus Torvalds [Thu, 2 Sep 2021 19:26:31 +0000 (12:26 -0700)]
Merge tag 'memblock-v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
"Robustness and debug improvements:
- add check for memory add/cap ordering
- add missing debug code to memblock_add_node()"
* tag 'memblock-v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: Check memory add/cap ordering
memblock: Add missing debug code to memblock_add_node()
Linus Torvalds [Thu, 2 Sep 2021 17:32:06 +0000 (10:32 -0700)]
Merge tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- fix debugfs initialization order (Anthony Iliopoulos)
- use memory_intersects() directly (Kefeng Wang)
- allow to return specific errors from ->map_sg (Logan Gunthorpe,
Martin Oliveira)
- turn the dma_map_sg return value into an unsigned int (me)
- provide a common global coherent pool іmplementation (me)
* tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mapping: (31 commits)
hexagon: use the generic global coherent pool
dma-mapping: make the global coherent pool conditional
dma-mapping: add a dma_init_global_coherent helper
dma-mapping: simplify dma_init_coherent_memory
dma-mapping: allow using the global coherent pool for !ARM
ARM/nommu: use the generic dma-direct code for non-coherent devices
dma-direct: add support for dma_coherent_default_memory
dma-mapping: return an unsigned int from dma_map_sg{,_attrs}
dma-mapping: disallow .map_sg operations from returning zero on error
dma-mapping: return error code from dma_dummy_map_sg()
x86/amd_gart: don't set failed sg dma_address to DMA_MAPPING_ERROR
x86/amd_gart: return error code from gart_map_sg()
xen: swiotlb: return error code from xen_swiotlb_map_sg()
parisc: return error code from .map_sg() ops
sparc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR
sparc/iommu: return error codes from .map_sg() ops
s390/pci: don't set failed sg dma_address to DMA_MAPPING_ERROR
s390/pci: return error code from s390_dma_map_sg()
powerpc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR
powerpc/iommu: return error code from .map_sg() ops
...
Linus Torvalds [Thu, 2 Sep 2021 17:27:17 +0000 (10:27 -0700)]
Merge tag 'configfs-5.15' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:
- fix a race in configfs_lookup (Sishuai Gong)
- minor cleanups (me)
* tag 'configfs-5.15' of git://git.infradead.org/users/hch/configfs:
configfs: fix a race in configfs_lookup()
configfs: fold configfs_attach_attr into configfs_lookup
configfs: simplify the configfs_dirent_is_ready
configfs: return -ENAMETOOLONG earlier in configfs_lookup
Linus Torvalds [Thu, 2 Sep 2021 17:19:45 +0000 (10:19 -0700)]
Merge tag 'dlm-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set includes a number of minor fixes and cleanups related to the
networking changes in the last release.
A patch to delay ack messages reduces network traffic significantly"
* tag 'dlm-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
fs: dlm: avoid comms shutdown delay in release_lockspace
fs: dlm: fix return -EINTR on recovery stopped
fs: dlm: implement delayed ack handling
fs: dlm: move receive loop into receive handler
fs: dlm: fix multiple empty writequeue alloc
fs: dlm: generic connect func
fs: dlm: auto load sctp module
fs: dlm: introduce generic listen
fs: dlm: move to static proto ops
fs: dlm: introduce con_next_wq helper
fs: dlm: cleanup and remove _send_rcom
fs: dlm: clear CF_APP_LIMITED on close
fs: dlm: fix typo in tlv prefix
fs: dlm: use READ_ONCE for config var
fs: dlm: use sk->sk_socket instead of con->sock
Jens Axboe [Wed, 1 Sep 2021 17:20:10 +0000 (11:20 -0600)]
io-wq: make worker creation resilient against signals
If a task is queueing async work and also handling signals, then we can
run into the case where create_io_thread() is interrupted and returns
failure because of that. If this happens for creating the first worker
in a group, then that worker will never get created and we can hang the
ring.
If we do get a fork failure, retry from task_work. With signals we have
to be a bit careful as we cannot simply queue as task_work, as we'll
still have signals pending at that point. Punt over a normal workqueue
first and then create from task_work after that.
Lastly, ensure that we handle fatal worker creations. Worker creation
failures are normally not fatal, only if we fail to create one in an empty
worker group can we not make progress. Right now that is ignored, ensure
that we handle that and run cancel on the work item.
There are two paths that create new workers - one is the "existing worker
going to sleep", and the other is "no workers found for this work, create
one". The former is never fatal, as workers do exist in the group. Only
the latter needs to be carefully handled.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Wed, 1 Sep 2021 19:01:17 +0000 (13:01 -0600)]
io-wq: get rid of FIXED worker flag
It makes the logic easier to follow if we just get rid of the fixed worker
flag, and simply ensure that we never exit the last worker in the group.
This also means that no particular worker is special.
Just track the last timeout state, and if we have hit it and no work
is pending, check if there are other workers. If yes, then we can exit
this one safely.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Fri, 16 Jul 2021 21:01:12 +0000 (14:01 -0700)]
d_path: make 'prepend()' fill up the buffer exactly on overflow
Instead of just marking the buffer as having overflowed, fill it up as
much as we can. That will allow the overflow case to then return
whatever truncated result if it wants to.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 14 Jul 2021 16:45:49 +0000 (09:45 -0700)]
mm: don't allow oversized kvmalloc() calls
'kvmalloc()' is a convenience function for people who want to do a
kmalloc() but fall back on vmalloc() if there aren't enough physically
contiguous pages, or if the allocation is larger than what kmalloc()
supports.
However, let's make sure it doesn't get _too_ easy to do crazy things
with it. In particular, don't allow big allocations that could be due
to integer overflow or underflow. So make sure the allocation size fits
in an 'int', to protect against trivial integer conversion issues.
Acked-by: Willy Tarreau <w@1wt.eu>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Luca Coelho [Wed, 1 Sep 2021 10:14:12 +0000 (13:14 +0300)]
iwlwifi: bump FW API to 66 for AX devices
Start supporting API version 66 for AX devices.
Th iwlwifi FW API is frozen every 6 weeks, so we need to bump the
newest version number that the driver supports accordingly. In this
specific case, support for new HW will only be possible with the new
FW version. This change still keeps backwards compatibility with
older FW API versions for existing devices.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210901101412.300012-1-luca@coelho.fi
Justin M. Forbes [Fri, 2 Jul 2021 22:31:53 +0000 (17:31 -0500)]
iwlwifi Add support for ax201 in Samsung Galaxy Book Flex2 Alpha
The Samsung Galaxy Book Flex2 Alpha uses an ax201 with the ID a0f0/6074.
This works fine with the existing driver once it knows to claim it.
Simple patch to add the device.
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210702223155.1981510-1-jforbes@fedoraproject.org
Linus Torvalds [Thu, 2 Sep 2021 16:37:09 +0000 (09:37 -0700)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"In addition to some ext4 bug fixes and cleanups, this cycle we add the
orphan_file feature, which eliminates bottlenecks when doing a large
number of parallel truncates and file deletions, and move the discard
operation out of the jbd2 commit thread when using the discard mount
option, to better support devices with slow discard operations"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
ext4: make the updating inode data procedure atomic
ext4: remove an unnecessary if statement in __ext4_get_inode_loc()
ext4: move inode eio simulation behind io completeion
ext4: Improve scalability of ext4 orphan file handling
ext4: Orphan file documentation
ext4: Speedup ext4 orphan inode handling
ext4: Move orphan inode handling into a separate file
ext4: Support for checksumming from journal triggers
ext4: fix race writing to an inline_data file while its xattrs are changing
jbd2: add sparse annotations for add_transaction_credits()
ext4: fix sparse warnings
ext4: Make sure quota files are not grabbed accidentally
ext4: fix e2fsprogs checksum failure for mounted filesystem
ext4: if zeroout fails fall back to splitting the extent node
ext4: reduce arguments of ext4_fc_add_dentry_tlv
ext4: flush background discard kwork when retry allocation
ext4: get discard out of jbd2 commit kthread contex
ext4: remove the repeated comment of ext4_trim_all_free
ext4: add new helper interface ext4_try_to_trim_range()
ext4: remove the 'group' parameter of ext4_trim_extent
...
Linus Torvalds [Thu, 2 Sep 2021 16:21:27 +0000 (09:21 -0700)]
Merge tag 'ovl-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs update from Miklos Szeredi:
- Copy up immutable/append/sync/noatime attributes (Amir Goldstein)
- Improve performance by enabling RCU lookup.
- Misc fixes and improvements
The reason this touches so many files is that the ->get_acl() method now
gets a "bool rcu" argument. The ->get_acl() API was updated based on
comments from Al and Linus:
Link: https://lore.kernel.org/linux-fsdevel/CAJfpeguQxpd6Wgc0Jd3ks77zcsAv_bn0q17L3VNnnmPKu11t8A@mail.gmail.com/
* tag 'ovl-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: enable RCU'd ->get_acl()
vfs: add rcu argument to ->get_acl() callback
ovl: fix BUG_ON() in may_delete() when called from ovl_cleanup()
ovl: use kvalloc in xattr copy-up
ovl: update ctime when changing fileattr
ovl: skip checking lower file's i_writecount on truncate
ovl: relax lookup error on mismatch origin ftype
ovl: do not set overlay.opaque for new directories
ovl: add ovl_allow_offline_changes() helper
ovl: disable decoding null uuid with redirect_dir
ovl: consistent behavior for immutable/append-only inodes
ovl: copy up sync/noatime fileattr flags
ovl: pass ovl_fs to ovl_check_setxattr()
fs: add generic helper for filling statx attribute flags
Linus Torvalds [Thu, 2 Sep 2021 16:12:05 +0000 (09:12 -0700)]
Merge tag 'erofs-for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, direct I/O and fsdax support for uncompressed files are
now added in order to avoid double-caching for loop device and VM
container use cases. All uncompressed cases are now turned into iomap
infrastructure, which looks much simpler and cleaner.
In addition, fiemap support is added for both (un)compressed files by
using iomap infrastructure as well so end users can easily get file
distribution. We've also added chunk-based uncompressed files support
for data deduplication as the next step of VM container use cases.
Summary:
- support direct I/O for all uncompressed files
- support fsdax for non-tailpacking regular files
- use iomap infrastructure for all uncompressed cases
- support fiemap for both (un)compressed files
- introduce chunk-based files for chunk deduplication
- some cleanups"
* tag 'erofs-for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: fix double free of 'copied'
erofs: support reading chunk-based uncompressed files
erofs: introduce chunk-based file on-disk format
erofs: add fiemap support with iomap
erofs: add support for the full decompressed length
erofs: remove the mapping parameter from erofs_try_to_free_cached_page()
erofs: directly use wrapper erofs_page_is_managed() when shrinking
erofs: convert all uncompressed cases to iomap
erofs: dax support for non-tailpacking regular file
erofs: iomap support for non-tailpacking DIO
Linus Torvalds [Thu, 2 Sep 2021 16:06:28 +0000 (09:06 -0700)]
Merge tag 'fscache-next-
20210829' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull fscache updates from David Howells:
"Preparatory work for the fscache rewrite that's being worked on and
fix some bugs. These include:
- Always select netfs stats when enabling fscache stats since they're
displayed through the same procfile.
- Add a cookie debug ID that can be used in tracepoints instead of a
pointer and cache it in the netfs_cache_resources struct rather
than in the netfs_read_request struct to make it more available.
- Use file_inode() in cachefiles rather than dereferencing
file->f_inode directly.
- Provide a procfile to display fscache cookies.
- Remove the fscache and cachefiles histogram procfiles.
- Remove the fscache object list procfile.
- Avoid using %p in fscache and cachefiles as the value is hashed and
not comparable to the register dump in an oops trace.
- Fix the cookie hash function to actually achieve useful dispersion.
- Fix fscache_cookie_put() so that it doesn't dereference the cookie
pointer in the tracepoint after the refcount has been decremented
(we're only allowed to do that if we decremented it to zero).
- Use refcount_t rather than atomic_t for the fscache_cookie
refcount"
* tag 'fscache-next-
20210829' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
fscache: Use refcount_t for the cookie refcount instead of atomic_t
fscache: Fix fscache_cookie_put() to not deref after dec
fscache: Fix cookie key hashing
cachefiles: Change %p in format strings to something else
fscache: Change %p in format strings to something else
fscache: Remove the object list procfile
fscache, cachefiles: Remove the histogram stuff
fscache: Procfile to display cookies
fscache: Add a cookie debug ID and use that in traces
cachefiles: Use file_inode() rather than accessing ->f_inode
netfs: Move cookie debug ID to struct netfs_cache_resources
fscache: Select netfs stats if fscache stats are enabled
Luca Coelho [Thu, 2 Sep 2021 10:11:01 +0000 (13:11 +0300)]
iwlwifi: mvm: add rtnl_lock() in iwl_mvm_start_get_nvm()
Due to a rebase damage, we lost the rtnl_lock() when the patch was
sent out. This causes an RTNL imbalance and failed assertions, due to
missing RTNL protection, for instance:
RTNL: assertion failed at net/wireless/reg.c (4025)
WARNING: CPU: 60 PID: 1720 at net/wireless/reg.c:4025 regulatory_set_wiphy_regd_sync+0x7f/0x90 [cfg80211]
Call Trace:
iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
iwl_opmode_register+0xd0/0x130 [iwlwifi]
init_module+0x23/0x1000 [iwlmvm]
Fix this by adding the missing rtnl_lock() back to the code.
Fixes: eb09ae93dabf ("iwlwifi: mvm: load regdomain at INIT stage")
Link: https://lore.kernel.org/lkml/CAHk-=wjB_zBwZ+WR9LOpvgjvaQn=cqryoKigod8QnZs=iYGEhA@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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