Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-01 10:45:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Probes fixes for v6.9-rc1:

Browse Source 
- tracing/probes: initialize a 'val' local variable with zero. This variable
    is read by FETCH_OP_ST_EDATA in a loop, and is expected to be initialized
    by FETCH_OP_ARG in the same loop. Since this expectation is not obvious,
    thus smatch warns it. Initializing 'val' with zero fixes this warning.
 -----BEGIN PGP SIGNATURE-----
 
 iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmYEKw4bHG1hc2FtaS5o
 aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bZmkH/2TNnrQivrNEyihXaZNC
 i4kyOGiNpIKi1BvE2nBFItqMlKbry+bR74tgk9+9BZiwjnTSz+pVDsWuOrSvrLNy
 j9yOjqZMdEnx7YdSZX+HUxpXzklSyAd1PQ0kEOYHRgqcXgcUEYSaHPpZZJqBtIah
 X/4rmLyMTFE2CdbdJ+dfPn9GLn0C9TP+jGz0DC/efEXdXJ3bVY2d3DJXHNiVpW58
 4Yy0UWwUu/QAk2JGUf1r3GEwoklKNNjvGLaCMm4mAoY3haDzfbGecstAB4cc/gD/
 FzN2q+7Z7RgJloICJo1Bh91AWi06+EeFFk6MZ5oHzjsp7EH/aGCy5umEsIPGjHr4
 Y0Q=
 =b4J5
 -----END PGP SIGNATURE-----

Merge tag 'probes-fixes-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes fixlet from Masami Hiramatsu:

 - tracing/probes: initialize a 'val' local variable with zero.

   This variable is read by FETCH_OP_ST_EDATA in a loop, and is
   initialized by FETCH_OP_ARG in the same loop. Since this
   initialization is not obvious, smatch warns about it.

   Explicitly initializing 'val' with zero fixes this warning.

* tag 'probes-fixes-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: probes: Fix to zero initialize a local variable
This commit is contained in:
Linus Torvalds 2024-03-27 10:01:24 -07:00
commit 962490525c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/trace/trace_probe.c
View File

@ -839,7 +839,7 @@ int traceprobe_get_entry_data_size(struct trace_probe *tp)
void store_trace_entry_data(void *edata, struct trace_probe *tp, struct pt_regs *regs)
{
struct probe_entry_arg *earg = tp->entry_arg;
unsigned long val;
unsigned long val = 0;
int i;
if (!earg)