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dm crypt: Slightly simplify crypt_set_keyring_key()

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Use strchr() instead of strpbrk() when there is only 1 element in the set
of characters to look for.

This potentially saves a few cycles, but gcc does already account for
optimizing this pattern thanks to it's fold_builtin_strpbrk().

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-01-28 16:43:00 +01:00 committed by Mike Snitzer
parent 151d812251
commit fc772580a3
1 changed files with 1 additions and 1 deletions
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drivers/md/dm-crypt.c
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@ -2487,7 +2487,7 @@ static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string
}
/* look for next ':' separating key_type from key_description */
key_desc = strpbrk(key_string, ":");
key_desc = strchr(key_string, ':');
if (!key_desc || key_desc == key_string || !strlen(key_desc + 1))
return -EINVAL;