Steven Rostedt (VMware)
b985a7303d
tracing: Quiet gcc warning about maybe unused link variable ...
commit 2519c1bbe38d7acacc9aacba303ca6f97482ed53 upstream.
Commit 57ea2a34adf4 ("tracing/kprobes: Fix trace_probe flags on
enable_trace_kprobe() failure") added an if statement that depends on another
if statement that gcc doesn't see will initialize the "link" variable and
gives the warning:
"warning: 'link' may be used uninitialized in this function"
It is really a false positive, but to quiet the warning, and also to make
sure that it never actually is used uninitialized, initialize the "link"
variable to NULL and add an if (!WARN_ON_ONCE(!link)) where the compiler
thinks it could be used uninitialized.
Cc: stable@vger.kernel.org
Fixes: 57ea2a34adf4 ("tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-03 07:55:12 +02:00
blktrace: fix unlocked registration of tracepoints
2018-02-25 11:05:41 +01:00
bpf: fix bpf_trace_printk on 32 bit archs
2017-08-30 10:21:39 +02:00
ftrace: Remove incorrect setting of glob search field
2018-02-17 13:21:20 +01:00
This release cycle is rather small. Just a few fixes to tracing.
2016-10-06 11:48:41 -07:00
Disable the __builtin_return_address() warning globally after all
2016-10-12 10:23:41 -07:00
cpufreq: schedutil: New governor based on scheduler utilization data
2016-04-02 01:09:12 +02:00
ring-buffer: Mask out the info bits when returning buffer page length
2018-01-02 20:35:07 +01:00
ring_buffer: Remove unneeded smp_wmb() before wakeup of reader benchmark
2015-11-03 16:19:02 -05:00
tracing: Fix crash when it fails to alloc ring buffer
2018-01-02 20:35:07 +01:00
ftrace: Fix function pid filter on instances
2017-04-21 09:31:22 +02:00
tracing: Only benchmark the time tracepoints take if tracing is on
2015-11-02 13:34:58 -05:00
tracing: Remove {start,stop}_branch_trace
2015-10-21 10:10:09 -04:00
tracing: Export tracing clock functions
2015-05-12 15:56:57 -04:00
tracing: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-05-17 16:26:30 -07:00
tracing: Fix converting enum's from the map in trace_event_eval_update()
2018-01-23 19:57:07 +01:00
tracing: Fix regex_match_front() to not over compare the test string
2018-05-16 10:08:43 +02:00
tracing: Exclude 'generic fields' from histograms
2017-12-25 14:23:44 +01:00
tracing: Fix possible double free in event_enable_trigger_func()
2018-08-03 07:55:12 +02:00
tracing: ftrace_event_is_function() can return boolean
2015-11-02 14:28:05 -05:00
ftrace: Have set_ftrace_pid use the bitmap like events do
2016-06-20 09:54:19 -04:00
tracing: Fix missing return symbol in function_graph output
2018-07-11 16:26:43 +02:00
tracing: Fix hwlat kthread migration
2017-02-09 08:08:28 +01:00
tracing: Remove redundant reset per-CPU buff in irqsoff tracer
2016-03-18 16:39:11 -04:00
tracing: Move trace_flags from global to a trace_array field
2015-09-30 15:22:55 -04:00
tracing: Quiet gcc warning about maybe unused link variable
2018-08-03 07:55:12 +02:00
tracing: Expose CPU physical addresses (resource values) for PCI devices
2016-06-20 09:54:22 -04:00
tracing: Fix typoes in code comment and printk in trace_nop.c
2016-03-08 11:23:57 -05:00
tracing: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
tracing: Turn seq_print_user_ip() into a static function
2015-09-28 10:16:12 -04:00
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
2016-06-20 09:46:12 -04:00
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
sched/core: Fix trace_sched_switch()
2015-10-06 17:08:15 +02:00
Most of the changes are clean ups and small fixes. Some of them have
2015-11-06 13:30:20 -08:00
ftrace: Fix selftest goto location on error
2017-09-27 14:39:23 +02:00
tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks
2015-02-13 21:21:37 -08:00
tracing, kasan: Silence Kasan warning in check_stack of stack_tracer
2016-02-19 12:36:44 -05:00
kernel/...: convert pr_warning to pr_warn
2016-03-22 15:36:02 -07:00
tracing/syscalls: fix multiline in error message text
2016-09-29 10:25:23 +02:00
tracing/uprobe_event: Fix strncpy corner case
2018-05-16 10:08:44 +02:00
tracing: Fix kmemleak in tracing_map_array_free()
2017-08-30 10:21:49 +02:00
tracing: Update some tracing_map constants and comments
2016-04-19 12:16:06 -04:00
b985a7303d