Helps a bit the user figuring out why it is failing:
Before:
$ perf test sigtrap
73: Sigtrap : FAILED!
$ perf test -v sigtrap
73: Sigtrap :
--- start ---
test child forked, pid 3816772
FAILED sys_perf_event_open()
test child finished with -1
---- end ----
Sigtrap: FAILED!
$
After:
$ perf test sigtrap
73: Sigtrap : FAILED!
$ perf test -v sigtrap
73: Sigtrap :
--- start ---
test child forked, pid 3816772
FAILED sys_perf_event_open(): Permission denied
test child finished with -1
---- end ----
Sigtrap: FAILED!
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kasan-dev@googlegroups.com
Link: http://lore.kernel.org/lkml/YZOpSVOCXe0zWeRs@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add basic stress test for sigtrap handling as a perf tool built-in test.
This allows sanity checking the basic sigtrap functionality from within
the perf tool.
Committer notes:
Reported that !root was getting -EPERM, applied a fixup from Marco to
set .exclude_{hv,kernel} that made it work.
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Ian Rogers <irogers@google.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>
Cc: kasan-dev@googlegroups.com
Link: http://lore.kernel.org/lkml/20211115112822.4077224-1-elver@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- Fix SMT detection fast read path on sysfs.
- Fix memory leaks when processing feature headers in perf.data files.
- Fix 'Simple expression parser' 'perf test' on arch without CPU die topology
info, such as s/390.
- Fix building perf with BUILD_BPF_SKEL=1.
- Fix 'perf bench' by reverting "perf bench: Fix two memory leaks detected with ASan".
- Fix itrace space allowed for new attributes in 'perf script'.
- Fix the build feature detection fast path, that was always failing on systems
with python3 development packages, speeding up the build.
- Reset shadow counts before loading, fixing metrics using duration_time.
- Sync more kernel headers changed by the new futex_waitv syscall: s390 and powerpc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix SMT detection fast read path on sysfs.
- Fix memory leaks when processing feature headers in perf.data files.
- Fix 'Simple expression parser' 'perf test' on arch without CPU die
topology info, such as s/390.
- Fix building perf with BUILD_BPF_SKEL=1.
- Fix 'perf bench' by reverting "perf bench: Fix two memory leaks
detected with ASan".
- Fix itrace space allowed for new attributes in 'perf script'.
- Fix the build feature detection fast path, that was always failing on
systems with python3 development packages, speeding up the build.
- Reset shadow counts before loading, fixing metrics using
duration_time.
- Sync more kernel headers changed by the new futex_waitv syscall: s390
and powerpc.
* tag 'perf-tools-fixes-for-v5.16-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf bpf_skel: Do not use typedef to avoid error on old clang
perf bpf: Fix building perf with BUILD_BPF_SKEL=1 by default in more distros
perf header: Fix memory leaks when processing feature headers
perf test: Reset shadow counts before loading
perf test: Fix 'Simple expression parser' test on arch without CPU die topology info
tools build: Remove needless libpython-version feature check that breaks test-all fast path
perf tools: Fix SMT detection fast read path
tools headers UAPI: Sync powerpc syscall table file changed by new futex_waitv syscall
perf inject: Fix itrace space allowed for new attributes
tools headers UAPI: Sync s390 syscall table file changed by new futex_waitv syscall
Revert "perf bench: Fix two memory leaks detected with ASan"
Various bug-fixes and hardware-id additions.
The following is an automated git shortlog grouped by driver:
amd-pmc:
- Fix s2idle failures on certain AMD laptops
lg-laptop:
- Recognize more models
platform/x86/intel:
- hid: add quirk to support Surface Go 3
thinkpad_acpi:
- Add lid_logo_dot to the list of safe LEDs
- Restore missing hotkey_tablet_mode and hotkey_radio_sw sysfs-attr
touchscreen_dmi:
- Add TrekStor SurfTab duo W1 touchscreen info
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Merge tag 'platform-drivers-x86-v5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Various bug-fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel: hid: add quirk to support Surface Go 3
platform/x86: amd-pmc: Fix s2idle failures on certain AMD laptops
platform/x86: touchscreen_dmi: Add TrekStor SurfTab duo W1 touchscreen info
platform/x86: lg-laptop: Recognize more models
platform/x86: thinkpad_acpi: Add lid_logo_dot to the list of safe LEDs
platform/x86: thinkpad_acpi: Restore missing hotkey_tablet_mode and hotkey_radio_sw sysfs-attr
When building bpf_skel with clang-10, typedef causes confusions like:
libbpf: map 'prev_readings': unexpected def kind var.
Fix this by removing the typedef.
Fixes: 7fac83aaf2 ("perf stat: Introduce 'bperf' to share hardware PMCs with BPF")
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/BEF5C312-4331-4A60-AEC0-AD7617CB2BC4@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo reported that building all his containers with BUILD_BPF_SKEL=1
to then make this the default he found problems in some distros where
the system linux/bpf.h file was being used and lacked this:
util/bpf_skel/bperf_leader.bpf.c:13:20: error: use of undeclared identifier 'BPF_F_PRESERVE_ELEMS'
__uint(map_flags, BPF_F_PRESERVE_ELEMS);
So use instead the vmlinux.h file generated by bpftool from BTF info.
This fixed these as well, getting the build back working on debian:11,
debian:experimental and ubuntu:21.10:
In file included from In file included from util/bpf_skel/bperf_leader.bpf.cutil/bpf_skel/bpf_prog_profiler.bpf.c::33:
:
In file included from In file included from /usr/include/linux/bpf.h/usr/include/linux/bpf.h::1111:
:
/usr/include/linux/types.h/usr/include/linux/types.h::55::1010:: In file included from util/bpf_skel/bperf_follower.bpf.c:3fatal errorfatal error:
: : In file included from /usr/include/linux/bpf.h:'asm/types.h' file not found11'asm/types.h' file not found:
/usr/include/linux/types.h:5:10: fatal error: 'asm/types.h' file not found
#include <asm/types.h>#include <asm/types.h>
^~~~~~~~~~~~~ ^~~~~~~~~~~~~
#include <asm/types.h>
^~~~~~~~~~~~~
1 error generated.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Tested-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CF175681-8101-43D1-ABDB-449E644BE986@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
These leaks were found with leak sanitizer running "perf pipe recording
and injection test".
In pipe mode feat_fd may hold onto an events struct that needs freeing.
When string features are processed they may overwrite an already created
string, so free this before the overwrite.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211118201730.2302927-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Otherwise load counting is an average. Without this change
duration_time in test_memory_bandwidth will alter its value if an
earlier test contains duration_time.
This patch fixes an issue that's introduced in the proposed patch:
https://lore.kernel.org/lkml/20211124015226.3317994-1-irogers@google.com/
in perf test "Parse and process metrics".
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211128085810.4027314-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Some platforms do not have CPU die support, for example s390.
Commit
Cc: Ian Rogers <irogers@google.com>
Fixes: fdf1e29b61 ("perf expr: Add metric literals for topology.")
fails on s390:
# perf test -Fv 7
...
# FAILED tests/expr.c:173 #num_dies >= #num_packages
---- end ----
Simple expression parser: FAILED!
#
Investigating this issue leads to these functions:
build_cpu_topology()
+--> has_die_topology(void)
{
struct utsname uts;
if (uname(&uts) < 0)
return false;
if (strncmp(uts.machine, "x86_64", 6))
return false;
....
}
which always returns false on s390. The caller build_cpu_topology()
checks has_die_topology() return value. On false the the struct
cpu_topology::die_cpu_list is not contructed and has zero entries. This
leads to the failing comparison: #num_dies >= #num_packages. s390 of
course has a positive number of packages.
Fix this and check if the function build_cpu_topology() did build up
a die_cpus_list. The number of entries in this list should be larger
than 0. If the number of list element is zero, the die_cpus_list has
not been created and the check in function test__expr():
TEST_ASSERT_VAL("#num_dies >= #num_packages", \
num_dies >= num_packages)
always fails.
Output after:
# perf test -Fv 7
7: Simple expression parser :
--- start ---
division by zero
syntax error
---- end ----
Simple expression parser: Ok
#
Fixes: fdf1e29b61 ("perf expr: Add metric literals for topology.")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20211129112339.3003036-1-tmricht@linux.ibm.com
[ Added comment in the added 'if (num_dies)' line about architectures not having die topology ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Since 66dfdff03d ("perf tools: Add Python 3 support") we don't use
the tools/build/feature/test-libpython-version.c version in any Makefile
feature check:
$ find tools/ -type f | xargs grep feature-libpython-version
$
The only place where this was used was removed in 66dfdff03d196e51:
- ifneq ($(feature-libpython-version), 1)
- $(warning Python 3 is not yet supported; please set)
- $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
- $(warning If you also have Python 2 installed, then)
- $(warning try something like:)
- $(warning $(and ,))
- $(warning $(and ,) make PYTHON=python2)
- $(warning $(and ,))
- $(warning Otherwise, disable Python support entirely:)
- $(warning $(and ,))
- $(warning $(and ,) make NO_LIBPYTHON=1)
- $(warning $(and ,))
- $(error $(and ,))
- else
- LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
- EXTLIBS += $(PYTHON_EMBED_LIBADD)
- LANG_BINDINGS += $(obj-perf)python/perf.so
- $(call detected,CONFIG_LIBPYTHON)
- endif
And nowadays we either build with PYTHON=python3 or just install the
python3 devel packages and perf will build against it.
But the leftover feature-libpython-version check made the fast path
feature detection to break in all cases except when python2 devel files
were installed:
$ rpm -qa | grep python.*devel
python3-devel-3.9.7-1.fc34.x86_64
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;
$ make -C tools/perf O=/tmp/build/perf install-bin
make: Entering directory '/var/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j32' parallel build
HOSTCC /tmp/build/perf/fixdep.o
<SNIP>
$ cat /tmp/build/perf/feature/test-all.make.output
In file included from test-all.c:18:
test-libpython-version.c:5:10: error: #error
5 | #error
| ^~~~~
$ ldd ~/bin/perf | grep python
libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007fda6dbcf000)
$
As python3 is the norm these days, fix this by just removing the unused
feature-libpython-version feature check, making the test-all fast path
to work with the common case.
With this:
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;
$ make -C tools/perf O=/tmp/build/perf install-bin |& head
make: Entering directory '/var/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j32' parallel build
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
$ ldd ~/bin/perf | grep python
libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007f58800b0000)
$ cat /tmp/build/perf/feature/test-all.make.output
$
Reviewed-by: James Clark <james.clark@arm.com>
Fixes: 66dfdff03d ("perf tools: Add Python 3 support")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jaroslav Škarvada <jskarvad@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/YaYmeeC6CS2b8OSz@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
sysfs__read_int() returns 0 on success, and so the fast read path was
always failing.
Fixes: bb629484d9 ("perf tools: Simplify checking if SMT is active.")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211124001231.3277836-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The space allowed for new attributes can be too small if existing header
information is large. That can happen, for example, if there are very
many CPUs, due to having an event ID per CPU per event being stored in the
header information.
Fix by adding the existing header.data_offset. Also increase the extra
space allowed to 8KiB and align to a 4KiB boundary for neatness.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20211125071457.2066863-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This: This reverts commit 92723ea0f1.
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRRRRRRR Ok
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRR Ok
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRRRR Ok
yep, it seems the perf bench is broken so the counts won't correlated if
I revert this one:
92723ea0f1 perf bench: Fix two memory leaks detected with ASan
it works for me again.. it seems to break -t option
[root@dell-r440-01 perf]# ./perf bench sched messaging -g 1 -l 100 -t
# Running 'sched/messaging' benchmark:
RRRperf: CLIENT: ready write: Bad file descriptor
Rperf: SENDER: write: Bad file descriptor
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/lkml/YZev7KClb%2Fud43Lc@krava/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andreas reported that a specific build environment for an external
module, being a bit broken, does pass CC_IMPLICIT_FALLTHROUGH quoted as
argument to gcc, causing an error
gcc-11: error: "-Wimplicit-fallthrough=5": linker input file not found: No such file or directory
Until this is more generally fixed as outlined in [1], by fixing
scripts/link-vmlinux.sh, scripts/gen_autoksyms.sh, etc to not directly
include the include/config/auto.conf, and in a second step, change
Kconfig to generate the auto.conf without "", workaround the issue by
explicitly unquoting CC_IMPLICIT_FALLTHROUGH.
Reported-by: Andreas Beckmann <anbe@debian.org>
Link: https://bugs.debian.org/1001083
Link: https://lore.kernel.org/linux-kbuild/CAK7LNAR-VXwHFEJqCcrFDZj+_4+Xd6oynbj_0eS8N504_ydmyw@mail.gmail.com/ [1]
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
v1.0 of the ReadTheDocs theme.
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Merge tag 'docs-5.16-3' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A few important documentation fixes, including breakage that comes
with v1.0 of the ReadTheDocs theme"
* tag 'docs-5.16-3' of git://git.lwn.net/linux:
Documentation: Add minimum pahole version
Documentation/process: fix self reference
docs: admin-guide/blockdev: Remove digraph of node-states
docs: conf.py: fix support for Readthedocs v 1.0.0
Just one trivial update adding a device ID to the DT bindings.
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Merge tag 'spi-fix-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
"Just one trivial update adding a device ID to the DT bindings"
* tag 'spi-fix-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-rockchip: Add rk3568-spi compatible
A fix for bitrot in the documentation for protection interrupts that
crept in as the code was revised during review.
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Merge tag 'regulator-fix-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"Documentation fix for v5.17.
A fix for bitrot in the documentation for protection interrupts that
crept in as the code was revised during review"
* tag 'regulator-fix-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Update protection IRQ helper docs
Ensure that the EFI memory map resides in encrypted memory even after it
has been reallocated.
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Merge tag 'efi-urgent-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fix from Ard Biesheuvel:
"Ensure that the EFI memory map resides in encrypted memory even after
it has been reallocated"
* tag 'efi-urgent-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
x86/sme: Explicitly map new EFI memmap table as encrypted
Some bug and warning fixes:
- Fix "make install" to use debians "installkernel" script which is now in /usr/sbin
- Fix the bindeb-pkg make target by giving the correct KBUILD_IMAGE file name
- Fix compiler warnings by annotating parisc agp init functions with __init
- Fix timekeeping on SMP machines with dual-core CPUs
- Enable some more config options in the 64-bit defconfig
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Merge tag 'for-5.16/parisc-6' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"Some bug and warning fixes:
- Fix "make install" to use debians "installkernel" script which is
now in /usr/sbin
- Fix the bindeb-pkg make target by giving the correct KBUILD_IMAGE
file name
- Fix compiler warnings by annotating parisc agp init functions with
__init
- Fix timekeeping on SMP machines with dual-core CPUs
- Enable some more config options in the 64-bit defconfig"
* tag 'for-5.16/parisc-6' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Mark cr16 CPU clocksource unstable on all SMP machines
parisc: Fix "make install" on newer debian releases
parisc/agp: Annotate parisc agp init functions with __init
parisc: Enable sata sil, audit and usb support on 64-bit defconfig
parisc: Fix KBUILD_IMAGE for self-extracting kernel
Here are some small USB fixes for a few reported issues. Included in
here are:
- xhci fix for a _much_ reported regression. I don't think
there's a community distro that has not reported this problem
yet :(
- new USB quirk addition
- cdns3 minor fixes
- typec regression fix.
All of these have been in linux-next with no reported problems, and the
xhci fix has been reported by many to resolve their reported problem.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for a few reported issues. Included in
here are:
- xhci fix for a _much_ reported regression. I don't think there's a
community distro that has not reported this problem yet :(
- new USB quirk addition
- cdns3 minor fixes
- typec regression fix.
All of these have been in linux-next with no reported problems, and
the xhci fix has been reported by many to resolve their reported
problem"
* tag 'usb-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: cdnsp: Fix a NULL pointer dereference in cdnsp_endpoint_init()
usb: cdns3: gadget: fix new urb never complete if ep cancel previous requests
usb: typec: tcpm: Wait in SNK_DEBOUNCED until disconnect
USB: NO_LPM quirk Lenovo Powered USB-C Travel Hub
xhci: Fix commad ring abort, write all 64 bits to CRCR register.
Here are some small TTY and Serial driver fixes for 5.16-rc4 to resolve
a number of reported problems.
They include:
- liteuart serial driver fixes
- 8250_pci serial driver fixes for pericom devices
- 8250 RTS line control fix while in RS-485 mode
- tegra serial driver fix
- msm_serial driver fix
- pl011 serial driver new id
- fsl_lpuart revert of broken change
- 8250_bcm7271 serial driver fix
- MAINTAINERS file update for rpmsg tty driver that came in
5.16-rc1
- vgacon fix for reported problem
All of these, except for the 8250_bcm7271 fix have been in linux-next
with no reported problem. The 8250_bcm7271 fix was added to the tree on
Friday so no chance to be linux-next yet. But it should be fine as the
affected developers submitted it.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small TTY and Serial driver fixes for 5.16-rc4 to
resolve a number of reported problems.
They include:
- liteuart serial driver fixes
- 8250_pci serial driver fixes for pericom devices
- 8250 RTS line control fix while in RS-485 mode
- tegra serial driver fix
- msm_serial driver fix
- pl011 serial driver new id
- fsl_lpuart revert of broken change
- 8250_bcm7271 serial driver fix
- MAINTAINERS file update for rpmsg tty driver that came in 5.16-rc1
- vgacon fix for reported problem
All of these, except for the 8250_bcm7271 fix have been in linux-next
with no reported problem. The 8250_bcm7271 fix was added to the tree
on Friday so no chance to be linux-next yet. But it should be fine as
the affected developers submitted it"
* tag 'tty-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250_bcm7271: UART errors after resuming from S2
serial: 8250_pci: rewrite pericom_do_set_divisor()
serial: 8250_pci: Fix ACCES entries in pci_serial_quirks array
serial: 8250: Fix RTS modem control while in rs485 mode
Revert "tty: serial: fsl_lpuart: drop earlycon entry for i.MX8QXP"
serial: tegra: Change lower tolerance baud rate limit for tegra20 and tegra30
serial: liteuart: relax compile-test dependencies
serial: liteuart: fix minor-number leak on probe errors
serial: liteuart: fix use-after-free and memleak on unbind
serial: liteuart: Fix NULL pointer dereference in ->remove()
vgacon: Propagate console boot parameters before calling `vc_resize'
tty: serial: msm_serial: Deactivate RX DMA for polling support
serial: pl011: Add ACPI SBSA UART match id
serial: core: fix transmit-buffer reset and memleak
MAINTAINERS: Add rpmsg tty driver maintainer
mode runs for prolonged periods with interrupts disabled and ends up
programming the next tick in the past, leading to that storm
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Merge tag 'timers_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Borislav Petkov:
- Prevent a tick storm when a dedicated timekeeper CPU in nohz_full
mode runs for prolonged periods with interrupts disabled and ends up
programming the next tick in the past, leading to that storm
* tag 'timers_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers/nohz: Last resort update jiffies on nohz_full IRQ entry
- Fix preempt= callback return values
- Correct utime/stime resource usage reporting on nohz_full to return
the proper times instead of shorter ones
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Merge tag 'sched_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Properly init uclamp_flags of a runqueue, on first enqueuing
- Fix preempt= callback return values
- Correct utime/stime resource usage reporting on nohz_full to return
the proper times instead of shorter ones
* tag 'sched_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/uclamp: Fix rq->uclamp_max not set on first enqueue
preempt/dynamic: Fix setup_preempt_mode() return value
sched/cputime: Fix getrusage(RUSAGE_THREAD) with nohz_full
- Use the proper operand types in __{get,put}_user() to prevent
truncation in SEV-ES string io
- Make sure the kernel mappings are present in trampoline_pgd in order
to prevent any potential accesses to unmapped memory after switching to
it
- Fix a trivial list corruption in objtool's pv_ops validation
- Disable the clocksource watchdog for TSC on platforms which claim
that the TSC is constant, doesn't stop in sleep states, CPU has TSC
adjust and the number of sockets of the platform are max 2, to prevent
erroneous markings of the TSC as unstable.
- Make sure TSC adjust is always checked not only when going idle
- Prevent a stack leak by initializing struct _fpx_sw_bytes properly in
the FPU code
- Fix INTEL_FAM6_RAPTORLAKE define naming to adhere to the convention
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Merge tag 'x86_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix a couple of SWAPGS fencing issues in the x86 entry code
- Use the proper operand types in __{get,put}_user() to prevent
truncation in SEV-ES string io
- Make sure the kernel mappings are present in trampoline_pgd in order
to prevent any potential accesses to unmapped memory after switching
to it
- Fix a trivial list corruption in objtool's pv_ops validation
- Disable the clocksource watchdog for TSC on platforms which claim
that the TSC is constant, doesn't stop in sleep states, CPU has TSC
adjust and the number of sockets of the platform are max 2, to
prevent erroneous markings of the TSC as unstable.
- Make sure TSC adjust is always checked not only when going idle
- Prevent a stack leak by initializing struct _fpx_sw_bytes properly in
the FPU code
- Fix INTEL_FAM6_RAPTORLAKE define naming to adhere to the convention
* tag 'x86_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
x86/entry: Use the correct fence macro after swapgs in kernel CR3
x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
x86/64/mm: Map all kernel memory into trampoline_pgd
objtool: Fix pv_ops noinstr validation
x86/tsc: Disable clocksource watchdog for TSC on qualified platorms
x86/tsc: Add a timer to make sure TSC_adjust is always checked
x86/fpu/signal: Initialize sw_bytes in save_xstate_epilog()
x86/cpu: Drop spurious underscore from RAPTOR_LAKE #define
* New SEV-ES protocol for communicating invalid VMGEXIT requests
* Ensure APICv is considered inactive if there is no APIC
* Fix reserved bits for AMD PerfEvtSeln register
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more kvm fixes from Paolo Bonzini:
- Static analysis fix
- New SEV-ES protocol for communicating invalid VMGEXIT requests
- Ensure APICv is considered inactive if there is no APIC
- Fix reserved bits for AMD PerfEvtSeln register
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Do not terminate SEV-ES guests on GHCB validation failure
KVM: SEV: Fall back to vmalloc for SEV-ES scratch area if necessary
KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails
KVM: x86/mmu: Retry page fault if root is invalidated by memslot update
KVM: VMX: Set failure code in prepare_vmcs02()
KVM: ensure APICv is considered inactive if there is no APIC
KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln register
Reserving memory using efi_mem_reserve() calls into the x86
efi_arch_mem_reserve() function. This function will insert a new EFI
memory descriptor into the EFI memory map representing the area of
memory to be reserved and marking it as EFI runtime memory. As part
of adding this new entry, a new EFI memory map is allocated and mapped.
The mapping is where a problem can occur. This new memory map is mapped
using early_memremap() and generally mapped encrypted, unless the new
memory for the mapping happens to come from an area of memory that is
marked as EFI_BOOT_SERVICES_DATA memory. In this case, the new memory will
be mapped unencrypted. However, during replacement of the old memory map,
efi_mem_type() is disabled, so the new memory map will now be long-term
mapped encrypted (in efi.memmap), resulting in the map containing invalid
data and causing the kernel boot to crash.
Since it is known that the area will be mapped encrypted going forward,
explicitly map the new memory map as encrypted using early_memremap_prot().
Cc: <stable@vger.kernel.org> # 4.14.x
Fixes: 8f716c9b5f ("x86/mm: Add support to access boot related data in the clear")
Link: https://lore.kernel.org/all/ebf1eb2940405438a09d51d121ec0d02c8755558.1634752931.git.thomas.lendacky@amd.com/
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
[ardb: incorporate Kconfig fix by Arnd]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Currently, an SEV-ES guest is terminated if the validation of the VMGEXIT
exit code or exit parameters fails.
The VMGEXIT instruction can be issued from userspace, even though
userspace (likely) can't update the GHCB. To prevent userspace from being
able to kill the guest, return an error through the GHCB when validation
fails rather than terminating the guest. For cases where the GHCB can't be
updated (e.g. the GHCB can't be mapped, etc.), just return back to the
guest.
The new error codes are documented in the lasest update to the GHCB
specification.
Fixes: 291bd20d5d ("KVM: SVM: Add initial support for a VMGEXIT VMEXIT")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <b57280b5562893e2616257ac9c2d4525a9aeeb42.1638471124.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use kvzalloc() to allocate KVM's buffer for SEV-ES's GHCB scratch area so
that KVM falls back to __vmalloc() if physically contiguous memory isn't
available. The buffer is purely a KVM software construct, i.e. there's
no need for it to be physically contiguous.
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211109222350.2266045-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Return appropriate error codes if setting up the GHCB scratch area for an
SEV-ES guest fails. In particular, returning -EINVAL instead of -ENOMEM
when allocating the kernel buffer could be confusing as userspace would
likely suspect a guest issue.
Fixes: 8f423a80d2 ("KVM: SVM: Support MMIO for an SEV-ES guest")
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211109222350.2266045-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Merge tag '5.16-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three SMB3 multichannel/fscache fixes and a DFS fix.
In testing multichannel reconnect scenarios recently various problems
with the cifs.ko implementation of fscache were found (e.g. incorrect
initialization of fscache cookies in some cases)"
* tag '5.16-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: avoid use of dstaddr as key for fscache client cookie
cifs: add server conn_id to fscache client cookie
cifs: wait for tcon resource_id before getting fscache super
cifs: fix missed refcounting of ipc tcon
In commit c8c3735997 ("parisc: Enhance detection of synchronous cr16
clocksources") I assumed that CPUs on the same physical core are syncronous.
While booting up the kernel on two different C8000 machines, one with a
dual-core PA8800 and one with a dual-core PA8900 CPU, this turned out to be
wrong. The symptom was that I saw a jump in the internal clocks printed to the
syslog and strange overall behaviour. On machines which have 4 cores (2
dual-cores) the problem isn't visible, because the current logic already marked
the cr16 clocksource unstable in this case.
This patch now marks the cr16 interval timers unstable if we have more than one
CPU in the system, and it fixes this issue.
Fixes: c8c3735997 ("parisc: Enhance detection of synchronous cr16 clocksources")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.15+
On newer debian releases the debian-provided "installkernel" script is
installed in /usr/sbin. Fix the kernel install.sh script to look for the
script in this directory as well.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v3.13+
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Merge tag 'block-5.16-2021-12-03' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"A single fix for repeated printk spam from loop"
* tag 'block-5.16-2021-12-03' of git://git.kernel.dk/linux-block:
loop: Use pr_warn_once() for loop_control_remove() warning
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Merge tag 'io_uring-5.16-2021-12-03' of git://git.kernel.dk/linux-block
Pull io_uring fix from Jens Axboe:
"Just a single fix preventing repeated retries of task_work based io-wq
thread creation, fixing a regression from when io-wq was made more (a
bit too much) resilient against signals"
* tag 'io_uring-5.16-2021-12-03' of git://git.kernel.dk/linux-block:
io-wq: don't retry task_work creation failure on fatal conditions
two patches, both in drivers. One is a fix to FC recovery (lpfc) and
the other is an enhancement to support the Intel Alder Motherboard
with the UFS driver which comes under the -rc exception process for
hardware enabling.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two patches, both in drivers.
One is a fix to FC recovery (lpfc) and the other is an enhancement to
support the Intel Alder Motherboard with the UFS driver which comes
under the -rc exception process for hardware enabling"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: ufs-pci: Add support for Intel ADL
scsi: lpfc: Fix non-recovery of remote ports following an unsolicited LOGO
* Since commit 486408d690 ("gfs2: Cancel remote delete work
asynchronously"), inode create and lookup-by-number can overlap more
easily and we can end up with temporary duplicate inodes. Fix the
code to prevent that.
* Fix a BUG demoting weak glock holders from a remote node.
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Merge tag 'gfs2-v5.16-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fixes from Andreas Gruenbacher:
- Since commit 486408d690 ("gfs2: Cancel remote delete work
asynchronously"), inode create and lookup-by-number can overlap more
easily and we can end up with temporary duplicate inodes. Fix the
code to prevent that.
- Fix a BUG demoting weak glock holders from a remote node.
* tag 'gfs2-v5.16-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: gfs2_create_inode rework
gfs2: gfs2_inode_lookup rework
gfs2: gfs2_inode_lookup cleanup
gfs2: Fix remote demote of weak glock holders
Commit d81ae8aac8 ("sched/uclamp: Fix initialization of struct
uclamp_rq") introduced a bug where uclamp_max of the rq is not reset to
match the woken up task's uclamp_max when the rq is idle.
The code was relying on rq->uclamp_max initialized to zero, so on first
enqueue
static inline void uclamp_rq_inc_id(struct rq *rq, struct task_struct *p,
enum uclamp_id clamp_id)
{
...
if (uc_se->value > READ_ONCE(uc_rq->value))
WRITE_ONCE(uc_rq->value, uc_se->value);
}
was actually resetting it. But since commit d81ae8aac8 changed the
default to 1024, this no longer works. And since rq->uclamp_flags is
also initialized to 0, neither above code path nor uclamp_idle_reset()
update the rq->uclamp_max on first wake up from idle.
This is only visible from first wake up(s) until the first dequeue to
idle after enabling the static key. And it only matters if the
uclamp_max of this task is < 1024 since only then its uclamp_max will be
effectively ignored.
Fix it by properly initializing rq->uclamp_flags = UCLAMP_FLAG_IDLE to
ensure uclamp_idle_reset() is called which then will update the rq
uclamp_max value as expected.
Fixes: d81ae8aac8 ("sched/uclamp: Fix initialization of struct uclamp_rq")
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <Valentin.Schneider@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/20211202112033.1705279-1-qais.yousef@arm.com
__setup() callbacks expect 1 for success and 0 for failure. Correct the
usage here to reflect that.
Fixes: 826bfeb37b ("preempt/dynamic: Support dynamic preempt with preempt= boot option")
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211203233203.133581-1-ahalaney@redhat.com
- Disable DTPM for this cycle to prevent it from causing issues
to appear on otherwise functional systems (Daniel Lezcano).
- Fix cpufreq sysfs interface failure related to physical CPU
hot-add (Xiongfeng Wang).
- Fix comment in cpufreq core and update its documentation (Tang
Yizhou).
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Merge tag 'pm-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a CPU hot-add issue in the cpufreq core, fix a comment in
the cpufreq core code and update its documentation, and disable the
DTPM (Dynamic Thermal Power Management) code for the time being to
prevent it from causing issues to appear.
Specifics:
- Disable DTPM for this cycle to prevent it from causing issues to
appear on otherwise functional systems (Daniel Lezcano)
- Fix cpufreq sysfs interface failure related to physical CPU hot-add
(Xiongfeng Wang)
- Fix comment in cpufreq core and update its documentation (Tang
Yizhou)"
* tag 'pm-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: DTPM: Drop unused local variable from init_dtpm()
cpufreq: docs: Update core.rst
cpufreq: Fix a comment in cpufreq_policy_free
powercap/drivers/dtpm: Disable DTPM at boot time
cpufreq: Fix get_cpu_device() failure in add_cpu_dev_symlink()
- Add missing BTI landing instructions to the ftrace*_caller trampolines
- Fix kexec() WARN when DEBUG_VIRTUAL is enabled
- Fix PAC documentation by removing stale references to compiler flags
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Three arm64 fixes for -rc4.
One of them is just a trivial documentation fix, whereas the other two
address a warning in the kexec code and a crash in ftrace on systems
implementing BTI.
The latter patch has a couple of ugly ifdefs which Mark plans to clean
up separately, but as-is the patch is straightforward for backporting
to stable kernels.
Summary:
- Add missing BTI landing instructions to the ftrace*_caller
trampolines
- Fix kexec() WARN when DEBUG_VIRTUAL is enabled
- Fix PAC documentation by removing stale references to compiler
flags"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: ftrace: add missing BTIs
arm64: kexec: use __pa_symbol(empty_zero_page)
arm64: update PAC description for kernel
Pull i2c fixes from Wolfram Sang:
"I2C has another set of driver bugfixes, mostly for the stm32f7 driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: rk3x: Handle a spurious start completion interrupt flag
i2c: stm32f7: use proper DMAENGINE API for termination
i2c: stm32f7: stop dma transfer in case of NACK
i2c: stm32f7: recover the bus on access timeout
i2c: stm32f7: flush TX FIFO upon transfer errors
i2c: cbus-gpio: set atomic transfer callback
Two sparse warning fixes and a couple of patches to fix an issue with
sata_fsl driver module removal:
* A couple of patches to avoid sparse warnings in libata-sata and
in the pata_falcon driver (from Yang and Finn).
* A couple of sata_fsl driver patches fixing IRQ free and proc
unregister on module removal (from Baokun).
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Merge tag 'libata-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fixes from Damien Le Moal:
"Two sparse warning fixes and a couple of patches to fix an issue with
sata_fsl driver module removal:
- A couple of patches to avoid sparse warnings in libata-sata and in
the pata_falcon driver (from Yang and Finn).
- A couple of sata_fsl driver patches fixing IRQ free and proc
unregister on module removal (from Baokun)"
* tag 'libata-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: replace snprintf in show functions with sysfs_emit
sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
pata_falcon: Avoid type warnings from sparse
server->dstaddr can change when the DNS mapping for the
server hostname changes. But conn_id is a u64 counter
that is incremented each time a new TCP connection
is setup. So use only that as a key.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Arnaldo Carvalho de Melo