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2019-10-18oprofile: Use pr_warn instead of pr_warningKefeng Wang1-4/+4
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-17-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Robert Richter <rric@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18of: Use pr_warn instead of pr_warningKefeng Wang1-10/+10
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-16-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18macintosh: Use pr_warn instead of pr_warningKefeng Wang4-19/+17
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-15-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18idsn: Use pr_warn instead of pr_warningKefeng Wang9-37/+35
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-14-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18ide: Use pr_warn instead of pr_warningKefeng Wang2-4/+4
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-13-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18crypto: n2: Use pr_warn instead of pr_warningKefeng Wang1-6/+6
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-12-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18clocksource: samsung_pwm_timer: Use pr_warn instead of pr_warningKefeng Wang1-2/+1
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-11-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> [pmladek@suse.com: Fixed indentation] Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18gdrom: Use pr_warn instead of pr_warningKefeng Wang1-2/+2
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-10-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18drbd: Use pr_warn instead of pr_warningKefeng Wang1-7/+6
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-9-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Lars Ellenberg <lars.ellenberg@linbit.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: drbd-dev@lists.linbit.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18acpi: Use pr_warn instead of pr_warningKefeng Wang7-50/+48
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-8-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: James Morse <james.morse@arm.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> [pmladek@suse.com: two more indentation fixes] Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18x86: Use pr_warn instead of pr_warningKefeng Wang14-65/+57
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-7-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Robert Richter <rric@kernel.org> Cc: Darren Hart <dvhart@infradead.org> Cc: Andy Shevchenko <andy@infradead.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18sparc: Use pr_warn instead of pr_warningKefeng Wang1-3/+3
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-6-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18sh: Use pr_warn instead of pr_warningKefeng Wang5-7/+6
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-5-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18riscv: Use pr_warn instead of pr_warningKefeng Wang1-2/+2
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-4-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18ia64: Use pr_warn instead of pr_warningKefeng Wang1-1/+1
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-3-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18arm64: Use pr_warn instead of pr_warningKefeng Wang2-10/+9
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-2-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-18alpha: Use pr_warn instead of pr_warningKefeng Wang1-2/+2
As said in commit f2c2cbcc35d4 ("powerpc: Use pr_warn instead of pr_warning"), removing pr_warning so all logging messages use a consistent <prefix>_warn style. Let's do it. Link: http://lkml.kernel.org/r/20191018031850.48498-1-wangkefeng.wang@huawei.com To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-09-06ABI: Update dev-kmsg documentation to match current kernel behaviourJames Byrne1-8/+7
Commit 5aa068ea4082 ("printk: remove games with previous record flags") abolished the practice of setting the log flag to 'c' for the first continuation line and '+' for subsequent lines. Now all continuation lines are flagged with 'c' and '+' is never used. Update the 'dev-kmsg' documentation to remove the reference to the obsolete '+' flag. In addition, state explicitly that only 8 bits of the <N> syslog prefix are used for the facility number when writing to /dev/kmsg. Link: http://lkml.kernel.org/r/0102016cf1b26630-8e9b337b-da49-43c6-b028-4250c2fac3ef-000000@eu-west-1.amazonses.com Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: James Byrne <james.byrne@origamienergy.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-08-16printk: Replace strncmp() with str_has_prefix()Chuhong Yuan2-10/+27
strncmp(str, const, len) is error-prone because len is easy to have typo. An example is the hard-coded len has counting error or sizeof(const) forgets - 1. So we prefer using newly introduced str_has_prefix() to substitute such strncmp() to make code better. Link: http://lkml.kernel.org/r/20190809071034.17279-1-hslester96@gmail.com Cc: "Steven Rostedt" <rostedt@goodmis.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> [pmladek@suse.com: Slightly updated and reformatted the commit message.] Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-08-15lib/test_printf: Remove obvious comments from %pd and %pD testsPetr Mladek1-2/+0
Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-08-15lib/test_printf: Add test of null/invalid pointer dereference for dentryJia He1-0/+7
This add some additional test cases of null/invalid pointer dereference for dentry and file (%pd and %pD) Link: http://lkml.kernel.org/r/20190809012457.56685-2-justin.he@arm.com To: Geert Uytterhoeven <geert+renesas@glider.be> To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> To: Thomas Gleixner <tglx@linutronix.de> To: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: Petr Mladek <pmladek@suse.com> To: linux-kernel@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Cc: Shuah Khan <shuah@kernel.org> Cc: "Tobin C. Harding" <tobin@kernel.org> Signed-off-by: Jia He <justin.he@arm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-08-15vsprintf: Prevent crash when dereferencing invalid pointers for %pDJia He1-3/+10
Commit 3e5903eb9cff ("vsprintf: Prevent crash when dereferencing invalid pointers") prevents most crash except for %pD. There is an additional pointer dereferencing before dentry_name. At least, vma->file can be NULL and be passed to printk %pD in print_bad_pte, which can cause crash. This patch fixes it with introducing a new file_dentry_name. Link: http://lkml.kernel.org/r/20190809012457.56685-1-justin.he@arm.com Fixes: 3e5903eb9cff ("vsprintf: Prevent crash when dereferencing invalid pointers") To: Geert Uytterhoeven <geert+renesas@glider.be> To: Thomas Gleixner <tglx@linutronix.de> To: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: linux-kernel@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Cc: Shuah Khan <shuah@kernel.org> Cc: "Tobin C. Harding" <tobin@kernel.org> Signed-off-by: Jia He <justin.he@arm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-07-12printk: Do not lose last line in kmsg buffer dumpVincent Whitchurch1-1/+1
kmsg_dump_get_buffer() is supposed to select all the youngest log messages which fit into the provided buffer. It determines the correct start index by using msg_print_text() with a NULL buffer to calculate the size of each entry. However, when performing the actual writes, msg_print_text() only writes the entry to the buffer if the written len is lesser than the size of the buffer. So if the lengths of the selected youngest log messages happen to precisely fill up the provided buffer, the last log message is not included. We don't want to modify msg_print_text() to fill up the buffer and start returning a length which is equal to the size of the buffer, since callers of its other users, such as kmsg_dump_get_line(), depend upon the current behaviour. Instead, fix kmsg_dump_get_buffer() to compensate for this. For example, with the following two final prints: [ 6.427502] AAAAAAAAAAAAA [ 6.427769] BBBBBBBB12345 A dump of a 64-byte buffer filled by kmsg_dump_get_buffer(), before this patch: 00000000: 3c 30 3e 5b 20 20 20 20 36 2e 35 32 32 31 39 37 <0>[ 6.522197 00000010: 5d 20 41 41 41 41 41 41 41 41 41 41 41 41 41 0a ] AAAAAAAAAAAAA. 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ After this patch: 00000000: 3c 30 3e 5b 20 20 20 20 36 2e 34 35 36 36 37 38 <0>[ 6.456678 00000010: 5d 20 42 42 42 42 42 42 42 42 31 32 33 34 35 0a ] BBBBBBBB12345. 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Link: http://lkml.kernel.org/r/20190711142937.4083-1-vincent.whitchurch@axis.com Fixes: e2ae715d66bf4bec ("kmsg - kmsg_dump() use iterator to receive log buffer content") To: rostedt@goodmis.org Cc: linux-kernel@vger.kernel.org Cc: <stable@vger.kernel.org> # v3.5+ Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-07-08tools arch x86: Sync asm/cpufeatures.h with the with the kernelArnaldo Carvalho de Melo1-6/+15
To pick up the changes in: 6dbbf5ec9e1e ("x86/cpufeatures: Enumerate user wait instructions") b302e4b176d0 ("x86/cpufeatures: Enumerate the new AVX512 BFLOAT16 instructions") acec0ce081de ("x86/cpufeatures: Combine word 11 and 12 into a new scattered features word") cbb99c0f5887 ("x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS") That don't affect anything in tools/. This silences this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Aaron Lewis <aaronlewis@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/n/tip-y60wnyg2fuxi0hx7icruo9po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-08ALSA: firewire-lib: code refactoring for local variablesTakashi Sakamoto1-6/+8
It's better to use int type for loop index. For consistency, the name of local variable for the number of data block should be plural. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib: code refactoring for post operation to data block counterTakashi Sakamoto1-10/+10
As a result of former commits, post operation to data block count for cases without CIP_DBC_IS_END_EVENT can be done just with data_block_counter member of amdtp_stream structure. This commit adds code refactoring to obsolete local variable for data block counter. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib: code refactoring for error path of parser for CIP headerTakashi Sakamoto1-9/+2
When a parser for CIP header returns -EAGAIN, no extra care is needed to probe tracepoints event. This commit adds code refactoring for the error path. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib: fix different data block counter between probed event and transferred isochronous packetTakashi Sakamoto1-3/+3
For IT context, tracepoints event is probed after calculating next data block counter. This brings difference of data block counter between the probed event and actual isochronous packet. This commit fixes it. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib: fix initial value of data block count for IR context without CIP_DBC_IS_END_EVENTTakashi Sakamoto1-2/+4
For IR context, ALSA IEC 61883-1/6 engine uses initial value of data block counter as UINT_MAX, to detect first isochronous packet in the middle of packet streaming. At present, when CIP_DBC_IS_END_EVENT is not used (i.e. for drivers except for ALSA fireworks driver), the initial value is used as is for tracepoints event. However, the engine can detect the value of dbc field in the payload of first isochronous packet and the value should be assigned to the event. This commit fixes the bug. Fixes: 76864868dbab ("ALSA: firewire-lib: cache next data_block_counter after probing tracepoints event for IR context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib/fireface: fix initial value of data block counter for IR context with CIP_NO_HEADERTakashi Sakamoto1-1/+5
For IR context, ALSA IEC 61883-1/6 engine uses initial value of data block counter as UINT_MAX, to detect first isochronous packet in the middle of packet streaming. At present, when CIP_NO_HEADER is used (i.e. for ALSA fireface driver), the initial value is used for tracepoints event. 0x00 should be for the event when the initial value is UINT_MAX because isochronous packets with CIP_NO_HEADER option has no field for data block count. This commit fixes the bug. Fixes: 76864868dbab ("ALSA: firewire-lib: cache next data_block_counter after probing tracepoints event for IR context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08ALSA: firewire-lib: fix invalid length of rx packet payload for tracepoint eventsTakashi Sakamoto1-5/+7
Although CIP header is handled as context header, the length of isochronous packet includes two quadlets for its payload. In tracepoints event the value of payload_quadlets should includes the two quadlets. But at present it doesn't. This commit fixes the bug. Fixes: b18f0cfaf16b ("ALSA: firewire-lib: use 8 byte packet header for IT context to separate CIP header from CIP payload") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07Linux 5.2Linus Torvalds1-1/+1
2019-07-07tools build: Check if gettid() is available before providing helperArnaldo Carvalho de Melo6-0/+27
Laura reported that the perf build failed in fedora when we got a glibc that provides gettid(), which I reproduced using fedora rawhide with the glibc-devel-2.29.9000-26.fc31.x86_64 package. Add a feature check to avoid providing a gettid() helper in such systems. On a fedora rawhide system with this patch applied we now get: [root@7a5f55352234 perf]# grep gettid /tmp/build/perf/FEATURE-DUMP feature-gettid=1 [root@7a5f55352234 perf]# cat /tmp/build/perf/feature/test-gettid.make.output [root@7a5f55352234 perf]# ldd /tmp/build/perf/feature/test-gettid.bin linux-vdso.so.1 (0x00007ffc6b1f6000) libc.so.6 => /lib64/libc.so.6 (0x00007f04e0a74000) /lib64/ld-linux-x86-64.so.2 (0x00007f04e0c47000) [root@7a5f55352234 perf]# nm /tmp/build/perf/feature/test-gettid.bin | grep -w gettid U gettid@@GLIBC_2.30 [root@7a5f55352234 perf]# While on a fedora:29 system: [acme@quaco perf]$ grep gettid /tmp/build/perf/FEATURE-DUMP feature-gettid=0 [acme@quaco perf]$ cat /tmp/build/perf/feature/test-gettid.make.output test-gettid.c: In function ‘main’: test-gettid.c:8:9: error: implicit declaration of function ‘gettid’; did you mean ‘getgid’? [-Werror=implicit-function-declaration] return gettid(); ^~~~~~ getgid cc1: all warnings being treated as errors [acme@quaco perf]$ Reported-by: Laura Abbott <labbott@redhat.com> Tested-by: Laura Abbott <labbott@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lkml.kernel.org/n/tip-yfy3ch53agmklwu9o7rlgf9c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-07perf jvmti: Address gcc string overflow warning for strncpy()Jiri Olsa1-2/+2
We are getting false positive gcc warning when we compile with gcc9 (9.1.1): CC jvmti/libjvmti.o In file included from /usr/include/string.h:494, from jvmti/libjvmti.c:5: In function ‘strncpy’, inlined from ‘copy_class_filename.constprop’ at jvmti/libjvmti.c:166:3: /usr/include/bits/string_fortified.h:106:10: error: ‘__builtin_strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ jvmti/libjvmti.c: In function ‘copy_class_filename.constprop’: jvmti/libjvmti.c:165:26: note: length computed here 165 | size_t file_name_len = strlen(file_name); | ^~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors As per Arnaldo's suggestion use strlcpy(), which does the same thing and keeps gcc silent. Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20190531131321.GB1281@krava Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-07perf python: Remove -fstack-protector-strong if clang doesn't have itArnaldo Carvalho de Melo1-0/+2
Some distros put -fstack-protector-strong in the compiler flags to be used to build python extensions, but then, the clang version in that distro doesn't know about that, only gcc does. Check if that is the case and remove it from the set of options used to build the python binding with clang. Case at hand: oraclelinux:7 $ head -2 /etc/os-release NAME="Oracle Linux Server" VERSION="7.6" $ grep stack-protector /usr/lib64/python2.7/_sysconfigdata.py | head -1 | cut -c-120 'CFLAGS': '-fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --para $ gcc version 4.8.5 20150623 (Red Hat 4.8.5-36.0.1) (GCC) clang version 3.4.2 (tags/RELEASE_34/dot2-final) clang: error: unknown argument: '-fstack-protector-strong' clang: error: unknown argument: '-fstack-protector-strong' error: command 'clang' failed with exit status 1 cp: cannot stat '/tmp/build/perf/python_ext_build/lib/perf*.so': No such file or directory make[2]: *** [/tmp/build/perf/python/perf.so] Error 1 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-brmp2415zxpbhz45etkgjoma@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-07time: Validate user input in compat_settimeofday()zhengbin1-0/+4
The user value is validated after converting the timeval to a timespec, but for a wide range of negative tv_usec values the multiplication overflow turns them in positive numbers. So the 'validated later' is not catching the invalid input. Signed-off-by: zhengbin <zhengbin13@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1562460701-113301-1-git-send-email-zhengbin13@huawei.com
2019-07-07x86/fpu: Inline fpu__xstate_clear_all_cpu_caps()Sebastian Andrzej Siewior3-12/+2
All fpu__xstate_clear_all_cpu_caps() does is to invoke one simple function since commit 73e3a7d2a7c3b ("x86/fpu: Remove the explicit clearing of XSAVE dependent features") so invoke that function directly and remove the wrapper. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190704060743.rvew4yrjd6n33uzx@linutronix.de
2019-07-07x86/fpu: Make 'no387' and 'nofxsr' command line options usefulSebastian Andrzej Siewior2-10/+12
The command line option `no387' is designed to disable the FPU entirely. This only 'works' with CONFIG_MATH_EMULATION enabled. But on 64bit this cannot work because user space expects SSE to work which required basic FPU support. MATH_EMULATION does not help because SSE is not emulated. The command line option `nofxsr' should also be limited to 32bit because FXSR is part of the required flags on 64bit so turning it off is not possible. Clearing X86_FEATURE_FPU without emulation enabled will not work anyway and hang in fpu__init_system_early_generic() before the console is enabled. Setting additioal dependencies, ensures that the CPU still boots on a modern CPU. Otherwise, dropping FPU will leave FXSR enabled causing the kernel to crash early in fpu__init_system_mxcsr(). With XSAVE support it will crash in fpu__init_cpu_xstate(). The problem is that xsetbv() with XMM set and SSE cleared is not allowed. That means XSAVE has to be disabled. The XSAVE support is disabled in fpu__init_system_xstate_size_legacy() but it is too late. It can be removed, it has been added in commit 1f999ab5a1360 ("x86, xsave: Disable xsave in i387 emulation mode") to use `no387' on a CPU with XSAVE support. All this happens before console output. After hat, the next possible crash is in RAID6 detect code because MMX remained enabled. With a 3DNOW enabled config it will explode in memcpy() for instance due to kernel_fpu_begin() but this is unconditionally enabled. This is enough to boot a Debian Wheezy on a 32bit qemu "host" CPU which supports everything up to XSAVES, AVX2 without 3DNOW. Later, Debian increased the minimum requirements to i686 which means it does not boot userland atleast due to CMOV. After masking the additional features it still keeps SSE4A and 3DNOW* enabled (if present on the host) but those are unused in the kernel. Restrict `no387' and `nofxsr' otions to 32bit only. Add dependencies for FPU, FXSR to additionaly mask CMOV, MMX, XSAVE if FXSR or FPU is cleared. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190703083247.57kjrmlxkai3vpw3@linutronix.de
2019-07-07timer: Document TIMER_PINNEDPeter Xu1-8/+19
The flag hints the user that the pinned timers will always be run on a static CPU (because that should be what "pinned" means...) but that's not the truth, at least with the current implementation. For example, currently if a pinned timer is set up but later mod_timer() upon the pinned timer is invoked, mod_timer() will still try to queue the timer on the current processor and migrate the timer if necessary. Document it a bit with the definition of TIMER_PINNED so that all future users will use it correctly. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Luiz Capitulino <lcapitulino@redhat.com> Link: https://lkml.kernel.org/r/20190628105942.14131-1-peterx@redhat.com
2019-07-07ALSA: usb-audio: fix Line6 Helix audio format ratesNicola Lunghi1-3/+43
Line6 Helix and HX stomp devices don't support retrieving the number of clock sample rate. Add a quirk to set it to 48Khz by default. [ fixed wrong variable initialization changes by tiwai ] Signed-off-by: Nicola Lunghi <nick83ola@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07firewire-motu: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA firewire-motu driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: 8edc56ec8f14 ("ALSA: firewire-motu: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07ALSA: firewire-digi00x: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA firewire-digi00x driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: ae8ffbb26512 ("ALSA: firewire-digi00x: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07ALSA: dice: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA dice driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: 3cd2c2d780a2 ("ALSA: dice: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07ALSA: oxfw: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA oxfw driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: 4f380d007052 ("ALSA: oxfw: configure packet format in pcm.hw_params callback") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07ALSA: fireworks: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA fireworks driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: 3d7250667ea9 ("ALSA: fireworks: configure sampling transfer frequency in pcm.hw_params callback") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07ALSA: bebob: fix wrong reference count for stream functionality at error path of rawmidi interfaceTakashi Sakamoto1-0/+2
In IEC 61883-6, several types of sampling data can be multiplexed into payload of common isochronous packet (CIP). For typical audio and music units, PCM samples and MIDI messages are multiplexed into one packet streaming. ALSA bebob driver allows applications of rawmidi interface to start packet streaming for transmission of MIDI messages. However at error path, the reference count of stream functionality is not operated correctly. This can brings a bug that packet streaming is not stopped when all referrers release the count. This commit fixes the bug. Fixes: ac2888b958f2 ("ALSA: bebob: configure sampling transfer frequency in pcm.hw_params callback") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-07security/commoncap: Use xattr security prefix lenCarmeli Tamir1-2/+2
Using the existing defined XATTR_SECURITY_PREFIX_LEN instead of sizeof(XATTR_SECURITY_PREFIX) - 1. Pretty simple cleanup. Signed-off-by: Carmeli Tamir <carmeli.tamir@gmail.com> Signed-off-by: James Morris <jamorris@linux.microsoft.com>
2019-07-06perf annotate TUI browser: Do not use member from variable within its own initializationArnaldo Carvalho de Melo1-2/+3
Some compilers will complain when using a member of a struct to initialize another member, in the same struct initialization. For instance: debian:8 Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0) oraclelinux:7 clang version 3.4.2 (tags/RELEASE_34/dot2-final) Produce: ui/browsers/annotate.c:104:12: error: variable 'ops' is uninitialized when used within its own initialization [-Werror,-Wuninitialized] (!ops.current_entry || ^~~ 1 error generated. So use an extra variable, initialized just before that struct, to have the value used in the expressions used to init two of the struct members. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Fixes: c298304bd747 ("perf annotate: Use a ops table for annotation_line__write()") Link: https://lkml.kernel.org/n/tip-f9nexro58q62l3o9hez8hr0i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-06Revert "gpio: tegra: Clean-up debugfs initialisation"Linus Walleij1-3/+15
This reverts commit a4de43049a1d0e2ed2a1d95e18e74b82cd9ca058. The commit creates build errors. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-06gpiolib: Use spinlock_t instead of struct spinlockSebastian Andrzej Siewior1-1/+1
For spinlocks the type spinlock_t should be used instead of "struct spinlock". Use spinlock_t for spinlock's definition. Cc: linux-gpio@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20190704153803.12739-8-bigeasy@linutronix.de Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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