[PATCH 2/2] powerpc/pseries: Avoid strlen() in do_{remove,update}_property()
From: Thorsten Blum <thorsten.blum@linux.dev>
Date: 2026-07-21 15:54:51
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Check only the first byte instead of scanning the entire string with strlen(). Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> --- arch/powerpc/platforms/pseries/reconfig.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 7faebcffc9df..18e3f1a036e3 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c@@ -307,7 +307,7 @@ static int do_remove_property(char *buf, size_t bufsize) if (tmp) *tmp = '\0'; - if (strlen(buf) == 0) + if (*buf == '\0') return -EINVAL; return of_remove_property(np, of_find_property(np, buf, NULL));
@@ -330,7 +330,7 @@ static int do_update_property(char *buf, size_t bufsize) if (!next_prop) return -EINVAL; - if (!strlen(name)) + if (*name == '\0') return -ENODEV; newprop = new_property(name, length, value, NULL);