From: Yury Norov <yno...@marvell.com> cpumask_parse() finds first occurrence of either \n or \0 by calling strchr() and strlen(). We can do it better with a single call of strchrnul().
Signed-off-by: Yury Norov <yno...@marvell.com> --- include/linux/cpumask.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 147bdec42215..2b87f35c586c 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -633,8 +633,7 @@ static inline int cpumask_parselist_user(const char __user *buf, int len, */ static inline int cpumask_parse(const char *buf, struct cpumask *dstp) { - char *nl = strchr(buf, '\n'); - unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf); + unsigned int len = (unsigned int)(strchrnul(buf, '\n') - buf); return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits); } -- 2.17.1