diff options
| author | Bartlomiej Zolnierkiewicz <[email protected]> | 2019-02-07 16:44:43 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <[email protected]> | 2019-02-07 16:44:43 +0100 |
| commit | 82ffd0454bd9bd57780966d47bfd56d579dd4fb3 (patch) | |
| tree | a735cfea934b7c4eac4a2c228cd95620c1daf969 /kernel/trace/trace_stack.c | |
| parent | 890d14d2d4b57ff5a149309da3ed36c8a529987f (diff) | |
| parent | 8834f5600cf3c8db365e18a3d5cac2c2780c81e5 (diff) | |
Merge tag 'v5.0-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Linux 5.0-rc5
Sync with upstream (which now contains fbdev-v5.0-rc3 changes) to
prepare a base for fbdev-v5.1 changes.
Diffstat (limited to 'kernel/trace/trace_stack.c')
| -rw-r--r-- | kernel/trace/trace_stack.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 2b0d1ee3241c..eec648a0d673 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -286,7 +286,7 @@ __next(struct seq_file *m, loff_t *pos) { long n = *pos - 1; - if (n > stack_trace_max.nr_entries || stack_dump_trace[n] == ULONG_MAX) + if (n >= stack_trace_max.nr_entries || stack_dump_trace[n] == ULONG_MAX) return NULL; m->private = (void *)n; @@ -448,8 +448,10 @@ static char stack_trace_filter_buf[COMMAND_LINE_SIZE+1] __initdata; static __init int enable_stacktrace(char *str) { - if (strncmp(str, "_filter=", 8) == 0) - strncpy(stack_trace_filter_buf, str+8, COMMAND_LINE_SIZE); + int len; + + if ((len = str_has_prefix(str, "_filter="))) + strncpy(stack_trace_filter_buf, str + len, COMMAND_LINE_SIZE); stack_tracer_enabled = 1; last_stack_tracer_enabled = 1; |