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Use sig_atomic_t for variables written/accessed in signal
handlers. This is undefined behavior as per:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use sig_atomic_t for variables written/accessed in signal
handlers. This is undefined behavior as per:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use sig_atomic_t for variables written/accessed in signal
handlers. This is undefined behavior as per:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 'session_done' variable is written to inside the signal handler of
'perf report' and 'perf script'. Switch its type to avoid undefined
behavior.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use sig_atomic_t for a variable written to in a signal handler and
read elsewhere. This is undefined behavior as per:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use sig_atomic_t for a variable written to in a signal handler and
read elsewhere. This is undefined behavior as per:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This removes undefined behavior as described in:
https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers
Suggested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
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: https://lore.kernel.org/r/20221024181913.630986-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
C11 has become the standard for mainstream kernel development [1],
allowing it in the perf build enables libraries like stdatomic.h to be
assumed to be present. This came up in the context of [2].
[1] https://lore.kernel.org/lkml/CAHk-=whWbENRz-vLY6vpESDLj6kGUTKO3khGtVfipHqwewh2HQ@mail.gmail.com/
[2] https://lore.kernel.org/lkml/20221024011024.462518-1-irogers@google.com/
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
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: https://lore.kernel.org/r/20221024181913.630986-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fix to get the declared file name even if it uses file index 0
in DWARF5, using custom die_get_decl_file() function.
Actually, the DWARF5 standard says file index 0 of the DW_AT_decl_file
is invalid(1), but there is a discussion and maybe this will be updated
[2].
Anyway, clang generates such DWARF5 file for the linux kernel. Thus it
must be handled.
Without this, 'perf probe' returns an error:
$ ./perf probe -k $BIN_PATH/vmlinux -s $SRC_PATH -L vfs_read:10
Debuginfo analysis failed.
Error: Failed to show lines.
With this, it can handle the case correctly:
$ ./perf probe -k $BIN_PATH/vmlinux -s $SRC_PATH -L vfs_read:10
<vfs_read@$SRC_PATH/fs/read_write.c:10>
11 ret = rw_verify_area(READ, file, pos, count);
12 if (ret)
return ret;
[1] DWARF5 specification 2.14 says "The value 0 indicates that no source file has been specified.")
[2] http://wiki.dwarfstd.org/index.php?title=DWARF5_Line_Table_File_Numbers)
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/166731052936.2100653.13380621874859467731.stgit@devnote3
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use dwarf_attr_integrate() instead of dwarf_attr() for generic attribute
acccessor functions, so that it can find the specified attribute from
abstact origin DIE etc.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/166731051988.2100653.13595339994343449770.stgit@devnote3
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Since clang generates DWARF5 which sets DW_AT_decl_file as 0,
dwarf_decl_file() thinks that is invalid and returns NULL. In that case
'perf probe' SIGSEGVs because it doesn't expect a NULL decl_file.
This adds a dwarf_decl_file() return value check to avoid such SEGV with
clang generated DWARF5 info.
Without this, 'perf probe' crashes:
$ perf probe -k $BIN_PATH/vmlinux -s $SRC_PATH -L vfs_read:10
Segmentation fault
$
With this, it just warns about it:
$ perf probe -k $BIN_PATH/vmlinux -s $SRC_PATH -L vfs_read:10
Debuginfo analysis failed.
Error: Failed to show lines.
$
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/166731051077.2100653.15626653369345128302.stgit@devnote3
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In most configurations, it works well with skipping 4 entries by
default. If some systems still have 3 BPF internal stack frames,
the next frame should be in a lock function which will be skipped
later when it tries to find a caller. So increasing to 4 won't
affect such systems too.
With --stack-skip=0, I can see something like this:
24 49.84 us 7.41 us 2.08 us mutex bpf_prog_e1b85959d520446c_contention_begin+0x12e
0xffffffffc045040e bpf_prog_e1b85959d520446c_contention_begin+0x12e
0xffffffffc045040e bpf_prog_e1b85959d520446c_contention_begin+0x12e
0xffffffff82ea2071 bpf_trace_run2+0x51
0xffffffff82de775b __bpf_trace_contention_begin+0xb
0xffffffff82c02045 __mutex_lock+0x245
0xffffffff82c019e3 __mutex_lock_slowpath+0x13
0xffffffff82c019c0 mutex_lock+0x20
0xffffffff830a083c kernfs_iop_permission+0x2c
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221028180128.3311491-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The msan also warns about the use of VLA for stack_trace variable.
We can dynamically allocate instead. While at it, simplify the error
handle a bit (and fix bugs).
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221028180128.3311491-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The --max-stack option is used to allocate the BPF stack map and stack
trace array in the userspace. Check the value properly before using.
Practically it cannot be greater than the sysctl_perf_event_max_stack.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221028180128.3311491-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The msan reported a use-of-uninitialized-value warning for the struct
lock_contention_data in lock_contention_read(). While it'd be filled
by bpf_map_lookup_elem(), let's just initialize it to silence the
warning.
==12524==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x562b0f16b1cd in lock_contention_read util/bpf_lock_contention.c:139:7
#1 0x562b0ef65ec6 in __cmd_contention builtin-lock.c:1737:3
#2 0x562b0ef65ec6 in cmd_lock builtin-lock.c:1992:8
#3 0x562b0ee7f50b in run_builtin perf.c:322:11
#4 0x562b0ee7efc1 in handle_internal_command perf.c:376:8
#5 0x562b0ee7e1e9 in run_argv perf.c:420:2
#6 0x562b0ee7e1e9 in main perf.c:550:3
#7 0x7f065f10e632 in __libc_start_main (/usr/lib64/libc.so.6+0x61632)
#8 0x562b0edf2fa9 in _start (perf+0xfa9)
SUMMARY: MemorySanitizer: use-of-uninitialized-value (perf+0xe15160) in lock_contention_read
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221028180128.3311491-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Skip an event configuration for event names with a dash/minus in them.
Events with a dash/minus in their name cause parsing issues as legacy
encoding of events would use a dash/minus as a separator.
The parser separates events with dashes into prefixes and suffixes and
then recombines them. Unfortunately if an event has part of its name
that matches a legacy token then the recombining fails.
This is seen for branch-brs where branch is a legacy token. branch-brs
was introduced to sysfs in:
https://lore.kernel.org/all/20220322221517.2510440-5-eranian@google.com/
The failure is shown below as well as the workaround to use a config
where the dash/minus isn't treated specially:
```
$ perf stat -e branch-brs true
event syntax error: 'branch-brs'
\___ parser error
$ perf stat -e cpu/branch-brs/ true
Performance counter stats for 'true':
46,179 cpu/branch-brs/
```
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20221013011205.3151391-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Needed to get the event_attr_init() and perf_event_paranoid() prototypes
that were being obtained indirectly, by sheer luck.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It uses things like perf_event__name() but were not including event.h,
where its prototype lives, fix it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Its a thread method, so move it to thread.h, this way some places that
were using event.h just to get this prototype may stop doing so and
speed up building and disentanble the header dependency graph.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Its a addr_location method, so move it to symbol.h, where 'struct
addr_location' is, this way some places that were using event.h just to
get this prototype may stop doing so and speed up building and
disentanble the header dependency graph.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Its a machine method, so move it to machine.h, this way some places that
were using event.h just to get this prototype may stop doing so and
speed up building and disentanble the header dependency graph.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leave just some forward declarations for pointers, move the includes to
where they are really needed.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Some places were including event.h just to get 'struct perf_sample',
move it to a separate place so that we speed up a bit the build.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
map_symbol.h is needed because we have structs that contains 'struct
addr_map_symbol', so add it, remove the others.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In the bpf-prologue.h header we are just using pointers, so no need to
include headers for that, just provide forward declarations for those
types.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
A use-after-free bugfix in the smscufx driver and various minor
error path fixes, smaller build fixes, sysfs fixes and
typos in comments in the stifb, sisfb, da8xxfb, xilinxfb, sm501fb,
gbefb and cyber2000fb drivers.
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Merge tag 'fbdev-for-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
"A use-after-free bugfix in the smscufx driver and various minor error
path fixes, smaller build fixes, sysfs fixes and typos in comments in
the stifb, sisfb, da8xxfb, xilinxfb, sm501fb, gbefb and cyber2000fb
drivers"
* tag 'fbdev-for-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: cyber2000fb: fix missing pci_disable_device()
fbdev: sisfb: use explicitly signed char
fbdev: smscufx: Fix several use-after-free bugs
fbdev: xilinxfb: Make xilinxfb_release() return void
fbdev: sisfb: fix repeated word in comment
fbdev: gbefb: Convert sysfs snprintf to sysfs_emit
fbdev: sm501fb: Convert sysfs snprintf to sysfs_emit
fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
fbdev: da8xx-fb: Fix error handling in .remove()
fbdev: MIPS supports iomem addresses
Here are some small driver fixes for 6.1-rc3. They include:
- iio driver bugfixes
- counter driver bugfixes
- coresight bugfixes, including a revert and then a second
fix to get it right.
All of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Some small driver fixes for 6.1-rc3. They include:
- iio driver bugfixes
- counter driver bugfixes
- coresight bugfixes, including a revert and then a second fix to get
it right.
All of these have been in linux-next with no reported problems"
* tag 'char-misc-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
misc: sgi-gru: use explicitly signed char
coresight: cti: Fix hang in cti_disable_hw()
Revert "coresight: cti: Fix hang in cti_disable_hw()"
counter: 104-quad-8: Fix race getting function mode and direction
counter: microchip-tcb-capture: Handle Signal1 read and Synapse
coresight: cti: Fix hang in cti_disable_hw()
coresight: Fix possible deadlock with lock dependency
counter: ti-ecap-capture: fix IS_ERR() vs NULL check
counter: Reduce DEFINE_COUNTER_ARRAY_POLARITY() to defining counter_array
iio: bmc150-accel-core: Fix unsafe buffer attributes
iio: adxl367: Fix unsafe buffer attributes
iio: adxl372: Fix unsafe buffer attributes
iio: at91-sama5d2_adc: Fix unsafe buffer attributes
iio: temperature: ltc2983: allocate iio channels once
tools: iio: iio_utils: fix digit calculation
iio: adc: stm32-adc: fix channel sampling time init
iio: adc: mcp3911: mask out device ID in debug prints
iio: adc: mcp3911: use correct id bits
iio: adc: mcp3911: return proper error code on failure to allocate trigger
iio: adc: mcp3911: fix sizeof() vs ARRAY_SIZE() bug
...
Here are a few small USB fixes for 6.1-rc3. Include in here are:
- MAINTAINERS update, including a big one for the USB gadget
subsystem. Many thanks to Felipe for all of the years of hard
work he has done on this codebase, it was greatly appreciated.
- dwc3 driver fixes for reported problems.
- xhci driver fixes for reported problems.
- typec driver fixes for minor issues
- uvc gadget driver change, and then revert as it wasn't
relevant for 6.1-final, as it is a new feature and people are
still reviewing and modifying it.
All of these have been in the linux-next tree with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"A few small USB fixes for 6.1-rc3. Include in here are:
- MAINTAINERS update, including a big one for the USB gadget
subsystem. Many thanks to Felipe for all of the years of hard work
he has done on this codebase, it was greatly appreciated.
- dwc3 driver fixes for reported problems.
- xhci driver fixes for reported problems.
- typec driver fixes for minor issues
- uvc gadget driver change, and then revert as it wasn't relevant for
6.1-final, as it is a new feature and people are still reviewing
and modifying it.
All of these have been in the linux-next tree with no reported issues"
* tag 'usb-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: dwc3: gadget: Don't set IMI for no_interrupt
usb: dwc3: gadget: Stop processing more requests on IMI
Revert "usb: gadget: uvc: limit isoc_sg to super speed gadgets"
xhci: Remove device endpoints from bandwidth list when freeing the device
xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices
xhci: Add quirk to reset host back to default state at shutdown
usb: xhci: add XHCI_SPURIOUS_SUCCESS to ASM1042 despite being a V0.96 controller
usb: dwc3: st: Rely on child's compatible instead of name
usb: gadget: uvc: limit isoc_sg to super speed gadgets
usb: bdc: change state when port disconnected
usb: typec: ucsi: acpi: Implement resume callback
usb: typec: ucsi: Check the connection on resume
usb: gadget: aspeed: Fix probe regression
usb: gadget: uvc: fix sg handling during video encode
usb: gadget: uvc: fix sg handling in error case
usb: gadget: uvc: fix dropped frame after missed isoc
usb: dwc3: gadget: Don't delay End Transfer on delayed_status
usb: dwc3: Don't switch OTG -> peripheral if extcon is present
MAINTAINERS: Update maintainers for broadcom USB
MAINTAINERS: move USB gadget and phy entries under the main USB entry
- convert gpio-tegra to using an immutable irqchip
- MAINTAINERS update
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Merge tag 'gpio-fixes-for-v6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- convert gpio-tegra to using an immutable irqchip
- MAINTAINERS update
* tag 'gpio-fixes-for-v6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
MAINTAINERS: Change myself to a maintainer
gpio: tegra: Convert to immutable irq chip
- Add Alder and Raptor Lakes support to RAPL
- Make sure raw sample data is output with tracepoints
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Merge tag 'perf_urgent_for_v6.1_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Rename a perf memory level event define to denote it is of CXL type
- Add Alder and Raptor Lakes support to RAPL
- Make sure raw sample data is output with tracepoints
* tag 'perf_urgent_for_v6.1_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/mem: Rename PERF_MEM_LVLNUM_EXTN_MEM to PERF_MEM_LVLNUM_CXL
perf/x86/rapl: Add support for Intel Raptor Lake
perf/x86/rapl: Add support for Intel AlderLake-N
perf: Fix missing raw data on tracepoint events
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Merge tag '6.1-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
- use after free fix for reconnect race
- two memory leak fixes
* tag '6.1-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix use-after-free caused by invalid pointer `hostname`
cifs: Fix pages leak when writedata alloc failed in cifs_write_from_iter()
cifs: Fix pages array leak when writedata alloc failed in cifs_writedata_alloc()
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Merge tag 'random-6.1-rc3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator fix from Jason Donenfeld:
"One fix from Jean-Philippe Brucker, addressing a regression in which
early boot code on ARM64 would use the non-_early variant of the
arch_get_random family of functions, resulting in the architectural
random number generator appearing unavailable during that early phase
of boot.
The fix simply changes arch_get_random*() to arch_get_random*_early().
This distinction between these two functions is a bit of an old wart
I'm not a fan of, and for 6.2 I'll see if I can make obsolete the
_early variant, so that one function does the right thing in all
contexts without overhead"
* tag 'random-6.1-rc3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
random: use arch_get_random*_early() in random_init()
21 small fixes, all in drivers. Some of these arrived during the
merge window and got held over to make sure of testing on the -rc
tree. The biggest change is for Standards conformance in the target
driver, closely followed by a set of bug fixes in megaraid_sas.
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:
"Varions small fixes, all in drivers.
Some of these arrived during the merge window and got held over to
make sure of testing on the -rc tree.
The biggest change is for standards conformance in the target driver,
closely followed by a set of bug fixes in megaraid_sas"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (21 commits)
scsi: ufs: core: Fix typo in comment
scsi: mpi3mr: Select CONFIG_SCSI_SAS_ATTRS
scsi: ufs: core: Fix typo for register name in comments
scsi: pm80xx: Display proc_name in sysfs
scsi: ufs: core: Fix the error log in ufshcd_query_flag_retry()
scsi: ufs: core: Remove unneeded casts from void *
scsi: lpfc: Fix spelling mistake "unsolicted" -> "unsolicited"
scsi: qla2xxx: Use transport-defined speed mask for supported_speeds
scsi: target: iblock: Fold iblock_emulate_read_cap_with_block_size() into iblock_get_blocks()
scsi: qla2xxx: Fix serialization of DCBX TLV data request
scsi: ufs: qcom: Remove redundant dev_err() call
scsi: megaraid_sas: Move megasas_dbg_lvl init to megasas_init()
scsi: megaraid_sas: Remove unnecessary memset()
scsi: megaraid_sas: Simplify megasas_update_device_list
scsi: megaraid_sas: Correct an error message
scsi: megaraid_sas: Correct value passed to scsi_device_lookup()
scsi: target: core: UA on all LUNs after reset
scsi: target: core: New key must be used for moved PR
scsi: target: core: Abort all preempted regs if requested
scsi: target: core: Fix memory leak in preempt_and_abort
...
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Merge tag 'block-6.1-2022-10-28' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- make the multipath dma alignment match the non-multipath one
(Keith Busch)
- fix a bogus use of sg_init_marker() (Nam Cao)
- fix circulr locking in nvme-tcp (Sagi Grimberg)
- Initialization fix for requests allocated via the special hw queue
allocator (John)
- Fix for a regression added in this release with the batched
completions of end_io backed requests (Ming)
- Error handling leak fix for rbd (Yang)
- Error handling leak fix for add_disk() failure (Yu)
* tag 'block-6.1-2022-10-28' of git://git.kernel.dk/linux:
blk-mq: Properly init requests from blk_mq_alloc_request_hctx()
blk-mq: don't add non-pt request with ->end_io to batch
rbd: fix possible memory leak in rbd_sysfs_init()
nvme-multipath: set queue dma alignment to 3
nvme-tcp: fix possible circular locking when deleting a controller under memory pressure
nvme-tcp: replace sg_init_marker() with sg_init_table()
block: fix memory leak for elevator on add_disk failure
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Merge tag 'io_uring-6.1-2022-10-28' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
"Just a fix for a locking regression introduced with the deferred
task_work running from this merge window"
* tag 'io_uring-6.1-2022-10-28' of git://git.kernel.dk/linux:
io_uring: unlock if __io_run_local_work locked inside
io_uring: use io_run_local_work_locked helper
Eight fix pre-6.0 bugs and the remainder address issues which were
introduced in the 6.1-rc merge cycle, or address issues which aren't
considered sufficiently serious to warrant a -stable backport.
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Merge tag 'mm-hotfixes-stable-2022-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
"Eight fix pre-6.0 bugs and the remainder address issues which were
introduced in the 6.1-rc merge cycle, or address issues which aren't
considered sufficiently serious to warrant a -stable backport"
* tag 'mm-hotfixes-stable-2022-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (23 commits)
mm: multi-gen LRU: move lru_gen_add_mm() out of IRQ-off region
lib: maple_tree: remove unneeded initialization in mtree_range_walk()
mmap: fix remap_file_pages() regression
mm/shmem: ensure proper fallback if page faults
mm/userfaultfd: replace kmap/kmap_atomic() with kmap_local_page()
x86: fortify: kmsan: fix KMSAN fortify builds
x86: asm: make sure __put_user_size() evaluates pointer once
Kconfig.debug: disable CONFIG_FRAME_WARN for KMSAN by default
x86/purgatory: disable KMSAN instrumentation
mm: kmsan: export kmsan_copy_page_meta()
mm: migrate: fix return value if all subpages of THPs are migrated successfully
mm/uffd: fix vma check on userfault for wp
mm: prep_compound_tail() clear page->private
mm,madvise,hugetlb: fix unexpected data loss with MADV_DONTNEED on hugetlbfs
mm/page_isolation: fix clang deadcode warning
fs/ext4/super.c: remove unused `deprecated_msg'
ipc/msg.c: fix percpu_counter use after free
memory tier, sysfs: rename attribute "nodes" to "nodelist"
MAINTAINERS: git://github.com -> https://github.com for nilfs2
mm/kmemleak: prevent soft lockup in kmemleak_scan()'s object iteration loops
...
- Fix a case of rescheduling with user access unlocked, when preempt is enabled.
- A follow-up fix for a recent fix, which could lead to IRQ state assertions firing
incorrectly.
- Two fixes for lockdep warnings seen when using kfence with the Hash MMU.
- Two fixes for preempt warnings seen when using the Hash MMU.
- Two fixes for the VAS coprocessor mechanism used on pseries.
- Prevent building some of our older KVM backends when CONTEXT_TRACKING_USER is enabled,
as it's known to cause crashes.
- A couple of fixes for issues seen with PMU NMIs.
Thanks to: Nicholas Piggin, Guenter Roeck, Frederic Barrat Haren Myneni, Sachin Sant,
Samuel Holland.
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Merge tag 'powerpc-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix a case of rescheduling with user access unlocked, when preempt is
enabled.
- A follow-up fix for a recent fix, which could lead to IRQ state
assertions firing incorrectly.
- Two fixes for lockdep warnings seen when using kfence with the Hash
MMU.
- Two fixes for preempt warnings seen when using the Hash MMU.
- Two fixes for the VAS coprocessor mechanism used on pseries.
- Prevent building some of our older KVM backends when
CONTEXT_TRACKING_USER is enabled, as it's known to cause crashes.
- A couple of fixes for issues seen with PMU NMIs.
Thanks to Nicholas Piggin, Guenter Roeck, Frederic Barrat Haren Myneni,
Sachin Sant, and Samuel Holland.
* tag 'powerpc-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s/interrupt: Fix clear of PACA_IRQS_HARD_DIS when returning to soft-masked context
powerpc/64s/interrupt: Perf NMI should not take normal exit path
powerpc/64/interrupt: Prevent NMI PMI causing a dangerous warning
KVM: PPC: BookS PR-KVM and BookE do not support context tracking
powerpc: Fix reschedule bug in KUAP-unlocked user copy
powerpc/64s: Fix hash__change_memory_range preemption warning
powerpc/64s: Disable preemption in hash lazy mmu mode
powerpc/64s: make linear_map_hash_lock a raw spinlock
powerpc/64s: make HPTE lock and native_tlbie_lock irq-safe
powerpc/64s: Add lockdep for HPTE lock
powerpc/pseries: Use lparcfg to reconfig VAS windows for DLPAR CPU
powerpc/pseries/vas: Add VAS IRQ primary handler
Currently the return value of 'sub_driver->init' is not checked. If
sparse_keymap_setup() called in the init function fails, 'generic_
inputdev' is freed, then it will lead a UAF when using it in generic_
acpi_laptop_init(). Fix it by checking the return value and setting
generic_inputdev to NULL after free, so as to avoid double free it.
The error code in generic_subdriver_init() is always negative, so the
return of generic_subdriver_init() can be simplified.
Fixes: 6246ed0911 ("LoongArch: Add ACPI-based generic laptop driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Some laptops don't support SW_LID, but still have backlight control,
move backlight resuming before SW_LID event handling so as to avoid
backlight mistake due to early return.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Not all compilers support declare variables in switch-case, so move
declarations to the beginning of a function. Otherwise we may get such
build errors:
arch/loongarch/net/bpf_jit.c: In function ‘emit_atomic’:
arch/loongarch/net/bpf_jit.c:362:3: error: a label can only be part of a statement and a declaration is not a statement
u8 r0 = regmap[BPF_REG_0];
^~
arch/loongarch/net/bpf_jit.c: In function ‘build_insn’:
arch/loongarch/net/bpf_jit.c:727:3: error: a label can only be part of a statement and a declaration is not a statement
u8 t7 = -1;
^~
arch/loongarch/net/bpf_jit.c:778:3: error: a label can only be part of a statement and a declaration is not a statement
int ret;
^~~
arch/loongarch/net/bpf_jit.c:779:3: error: expected expression before ‘u64’
u64 func_addr;
^~~
arch/loongarch/net/bpf_jit.c:780:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
bool func_addr_fixed;
^~~~
arch/loongarch/net/bpf_jit.c:784:11: error: ‘func_addr’ undeclared (first use in this function); did you mean ‘in_addr’?
&func_addr, &func_addr_fixed);
^~~~~~~~~
in_addr
arch/loongarch/net/bpf_jit.c:784:11: note: each undeclared identifier is reported only once for each function it appears in
arch/loongarch/net/bpf_jit.c:814:3: error: a label can only be part of a statement and a declaration is not a statement
u64 imm64 = (u64)(insn + 1)->imm << 32 | (u32)insn->imm;
^~~
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Eliminate the following coccicheck warning:
./arch/loongarch/include/asm/ptrace.h:32:15-21: WARNING use flexible-array member instead
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Yushan Zhou <katrinzhou@tencent.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
The current LoongArch kernel stack is padded as if obeying the MIPS o32
calling convention (32 bytes), signifying the port's MIPS lineage but no
longer making sense. Remove the padding for clarity.
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
* A fix for a build warning in the jump_label code.
* One of the git://github -> https://github cleanups, for the SiFive
drivers.
* A fix for the kasan initialization code, this still likely warrants
some cleanups but that's a bigger problem and at least this fixes the
crashes in the short term.
* A pair of fixes for extension support detection on mixed LLVM/GNU
toolchains.
* A fix for a runtime warning in the /proc/cpuinfo code.
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Merge tag 'riscv-for-linus-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix for a build warning in the jump_label code
- One of the git://github -> https://github cleanups, for the SiFive
drivers
- A fix for the kasan initialization code, this still likely warrants
some cleanups but that's a bigger problem and at least this fixes the
crashes in the short term
- A pair of fixes for extension support detection on mixed LLVM/GNU
toolchains
- A fix for a runtime warning in the /proc/cpuinfo code
* tag 'riscv-for-linus-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: Fix /proc/cpuinfo cpumask warning
riscv: fix detection of toolchain Zihintpause support
riscv: fix detection of toolchain Zicbom support
riscv: mm: add missing memcpy in kasan_init
MAINTAINERS: git://github.com -> https://github.com for sifive
riscv: jump_label: mark arguments as const to satisfy asm constraints
- Fix the documentation of the *_match_string() family of functions to
properly cover the return value (Andy Shevchenko).
- Fix a possible integer overflow during multiplication in the ACPI
PCC code (Manank Patel).
- Make the ACPI device resources code skip IRQ override on Asus
Vivobook S5602ZA (Tamim Khan).
- Add LATT2021 to the list of device IDs that are ignored when
returned by _DEP, because there are no drivers for them in the
kernel and no plans to add such drivers (Hans de Goede).
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Merge tag 'acpi-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and device properties fixes from Rafael Wysocki:
"These fix device properties documentation and the ACPI PCC code, add a
new IRQ override quirk for resource handling and add one more item to
the list of device IDs to be ignored when returned by _DEP.
Specifics:
- Fix the documentation of the *_match_string() family of functions
to properly cover the return value (Andy Shevchenko)
- Fix a possible integer overflow during multiplication in the ACPI
PCC code (Manank Patel)
- Make the ACPI device resources code skip IRQ override on Asus
Vivobook S5602ZA (Tamim Khan)
- Add LATT2021 to the list of device IDs that are ignored when
returned by _DEP, because there are no drivers for them in the
kernel and no plans to add such drivers (Hans de Goede)"
* tag 'acpi-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
ACPI: resource: Skip IRQ override on Asus Vivobook S5602ZA
ACPI: PCC: Fix unintentional integer overflow
device property: Fix documentation for *_match_string() APIs
