Commit e400a40c authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt

tracing: Fix trace_seq_bitmask() to start at current position

In trace_seq_bitmask() it calls bitmap_scnprintf() not from the current
position of the trace_seq buffer (s->buffer + s->len), but instead from
the beginning of the buffer (s->buffer).

Luckily, the only user of this "ipi_raise tracepoint" uses it as the
first parameter, and as such, the start of the temp buffer in
include/trace/ftrace.h (see __get_bitmask()).
Reported-by: default avatarPetr Mladek <pmladek@suse.cz>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.cz>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent dbcf3e06
...@@ -122,7 +122,7 @@ int trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp, ...@@ -122,7 +122,7 @@ int trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
if (s->full || !len) if (s->full || !len)
return 0; return 0;
ret = bitmap_scnprintf(s->buffer, len, maskp, nmaskbits); ret = bitmap_scnprintf(s->buffer + s->len, len, maskp, nmaskbits);
s->len += ret; s->len += ret;
return 1; return 1;
......
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