diff options
| author | Rafael J. Wysocki <[email protected]> | 2016-04-09 01:08:02 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2016-04-09 01:08:02 +0200 |
| commit | 4b42fafc1cdc4aba38d4f147cb2f3f1a32cd4a15 (patch) | |
| tree | 7f162d0612f7048dc52a3ba320a6685593100729 /kernel/trace/trace_stack.c | |
| parent | b318556479cc923970a79d6c2311138581c0db83 (diff) | |
| parent | 6c9d9c81924b4b63c7a487e90fddb3b2d0f7d458 (diff) | |
Merge branch 'pm-cpufreq-sched' into pm-cpufreq
Diffstat (limited to 'kernel/trace/trace_stack.c')
| -rw-r--r-- | kernel/trace/trace_stack.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 202df6cffcca..2a1abbaca10e 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -156,7 +156,11 @@ check_stack(unsigned long ip, unsigned long *stack) for (; p < top && i < stack_trace_max.nr_entries; p++) { if (stack_dump_trace[i] == ULONG_MAX) break; - if (*p == stack_dump_trace[i]) { + /* + * The READ_ONCE_NOCHECK is used to let KASAN know that + * this is not a stack-out-of-bounds error. + */ + if ((READ_ONCE_NOCHECK(*p)) == stack_dump_trace[i]) { stack_dump_trace[x] = stack_dump_trace[i++]; this_size = stack_trace_index[x++] = (top - p) * sizeof(unsigned long); |