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SubjectRE: [PATCH v2] s390: crypto: Use min() instead of doing it manually
Date
From: Haowen Bai
> Sent: 15 March 2022 08:01
>
> Fix following coccicheck warning:
> drivers/s390/crypto/zcrypt_ep11misc.c:1112:25-26: WARNING opportunity for min()
>
> Signed-off-by: Haowen Bai <baihaowen@meizu.com>
> ---
> drivers/s390/crypto/zcrypt_ep11misc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/s390/crypto/zcrypt_ep11misc.c b/drivers/s390/crypto/zcrypt_ep11misc.c
> index 9ce5a71..bb2a527 100644
> --- a/drivers/s390/crypto/zcrypt_ep11misc.c
> +++ b/drivers/s390/crypto/zcrypt_ep11misc.c
> @@ -1109,7 +1109,7 @@ static int ep11_wrapkey(u16 card, u16 domain,
> if (kb->head.type == TOKTYPE_NON_CCA &&
> kb->head.version == TOKVER_EP11_AES) {
> has_header = true;
> - keysize = kb->head.len < keysize ? kb->head.len : keysize;
> + keysize = min((size_t)kb->head.len, keysize);

I'm sure that would look better as:
if (keysize > kb->head.len)
keysize = kb->head.len;
which makes it much more obvious that the existing value
is being limited by a new bound.

David

> }
>
> /* request cprb and payload */
> --
> 2.7.4

-
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