diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2024-10-24 09:52:51 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-10-24 09:52:51 +0200 |
| commit | d61ac4a7496a7981947b8b894d40b0e35c316fa5 (patch) | |
| tree | 1bdc5db2ed51c38baf2e07e129816d106643af90 /arch/um | |
| parent | 3f17fed2149192c7d3b76a45a6a87b4ff22cd586 (diff) | |
um: remove PATH_MAX use
Evidently, PATH_MAX isn't always defined, at least not via <limits.h>.
Simply remove the use and replace it by a constant 4k. As stat::st_size
is zero for /proc/self/exe we can't even size it automatically, and it
seems unlikely someone's going to try to run UML with such a path.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410240553.gYNIXN8i-lkp@intel.com/
Fixes: 031acdcfb566 ("um: restore process name")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/os-Linux/main.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 5e0cba5aee93..0afcdeb8995b 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -10,7 +10,6 @@ #include <errno.h> #include <signal.h> #include <string.h> -#include <limits.h> #include <sys/resource.h> #include <sys/personality.h> #include <as-layout.h> @@ -114,7 +113,7 @@ int __init main(int argc, char **argv, char **envp) ret = personality(PER_LINUX | ADDR_NO_RANDOMIZE); if (ret >= 0 && (ret & (PER_LINUX | ADDR_NO_RANDOMIZE)) != (PER_LINUX | ADDR_NO_RANDOMIZE)) { - char buf[PATH_MAX] = {}; + char buf[4096] = {}; ssize_t ret; ret = readlink("/proc/self/exe", buf, sizeof(buf)); |