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[-next] crypto: pkcs7: Use match_string() helper to simplify the code

Message ID 20200902140717.30700-1-yuehaibing@huawei.com (mailing list archive)
State Not Applicable
Delegated to: Herbert Xu
Headers show
Series [-next] crypto: pkcs7: Use match_string() helper to simplify the code | expand

Commit Message

Yue Haibing Sept. 2, 2020, 2:07 p.m. UTC 
match_string() returns the array index of a matching string.
Use it instead of the open-coded implementation.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 crypto/asymmetric_keys/pkcs7_verify.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
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Patch

diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index ce49820caa97..0b4d07aa8811 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -141,11 +141,10 @@  int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf, u32 *len,
 	*buf = sinfo->sig->digest;
 	*len = sinfo->sig->digest_size;
 
-	for (i = 0; i < HASH_ALGO__LAST; i++)
-		if (!strcmp(hash_algo_name[i], sinfo->sig->hash_algo)) {
-			*hash_algo = i;
-			break;
-		}
+	i = match_string(hash_algo_name, HASH_ALGO__LAST,
+			 sinfo->sig->hash_algo);
+	if (i >= 0)
+		*hash_algo = i;
 
 	return 0;
 }