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authorLinus Torvalds <torvalds@linux-foundation.org>2015-05-08 18:22:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-05-08 18:22:05 -0700
commit26b293e854406ea4276b566cef75426adc3a9688 (patch)
tree66e90d9a3eb4741edba3701c210fe29ba4b4acaf
parent3e0283a53f7d2f2dae7bc4aa7f3104cb5988018f (diff)
parentac01ce1410fc2c7b5f3af5e9c972e6a412eee54f (diff)
downloadlinux-stericsson-26b293e854406ea4276b566cef75426adc3a9688.tar.gz
Merge tag 'trace-fixes-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt: "The newly added ftrace_print_array_seq() function had a bug in it. Luckily, the only user of it didn't make the 4.1 merge window. But the helper function should be fixed before 4.2 when the users start coming in" * tag 'trace-fixes-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Make ftrace_print_array_seq compute buf_len
-rw-r--r--include/linux/ftrace_event.h2
-rw-r--r--kernel/trace/trace_output.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 46e83c2156c6..f9ecf63d47f1 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -46,7 +46,7 @@ const char *ftrace_print_hex_seq(struct trace_seq *p,
const unsigned char *buf, int len);
const char *ftrace_print_array_seq(struct trace_seq *p,
- const void *buf, int buf_len,
+ const void *buf, int count,
size_t el_size);
struct trace_iterator;
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 692bf7184c8c..25a086bcb700 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -178,12 +178,13 @@ ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
EXPORT_SYMBOL(ftrace_print_hex_seq);
const char *
-ftrace_print_array_seq(struct trace_seq *p, const void *buf, int buf_len,
+ftrace_print_array_seq(struct trace_seq *p, const void *buf, int count,
size_t el_size)
{
const char *ret = trace_seq_buffer_ptr(p);
const char *prefix = "";
void *ptr = (void *)buf;
+ size_t buf_len = count * el_size;
trace_seq_putc(p, '{');