string: implement strchrnul

We have at least two places opencoding strchrnul, one of them needlessly
iterating twice instead of once over the string. Replace both by calling
a common single pass implementation.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210628051934.9604-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 0 insertions, 8 deletions

diff --git a/commands/hwclock.c b/commands/hwclock.c
index 1b5c2cd100..7a5600c456 100644
--- a/commands/hwclock.c
+++ b/commands/hwclock.c
@@ -9,14 +9,6 @@
 #include <string.h>
 #include <environment.h>
 
-static char *strchrnul(const char *s, int c)
-{
-	while (*s != '\0' && *s != c)
-		s++;
-
-	return (char *)s;
-}
-
 static int sscanf_two_digits(char *s, int *res)
 {
 	char buf[3];