mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-10 19:28:49 -04:00
Code Issues Packages Projects Releases Wiki Activity

perf pmu: Switch FILENAME_MAX to NAME_MAX

Browse Source 
FILENAME_MAX is the same as PATH_MAX (4kb) in glibc rather than
NAME_MAX's 255. Switch to using NAME_MAX and ensure the '\0' is
accounted for in the path's buffer size.

Fixes: 754baf426e ("perf pmu: Change aliases from list to hashmap")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250717150855.1032526-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers
2025-07-17 08:08:54 -07:00
committed by Namhyung Kim
parent 478272d1cd
commit 82aac55337
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/util/pmu.c
View File

@@ -453,7 +453,7 @@ static struct perf_pmu_alias *perf_pmu__find_alias(struct perf_pmu *pmu,
{
struct perf_pmu_alias *alias;
bool has_sysfs_event;
char event_file_name[FILENAME_MAX + 8];
char event_file_name[NAME_MAX + 8];
if (hashmap__find(pmu->aliases, name, &alias))
return alias;
@@ -752,7 +752,7 @@ static int pmu_aliases_parse(struct perf_pmu *pmu)
static int pmu_aliases_parse_eager(struct perf_pmu *pmu, int sysfs_fd)
{
char path[FILENAME_MAX + 7];
char path[NAME_MAX + 8];
int ret, events_dir_fd;
scnprintf(path, sizeof(path), "%s/events", pmu->name);