This patch fixes the following warnings: drivers/crypto/ccree/cc_aead.c:630:5-12: WARNING: Unsigned expression compared with zero: seq_len > 0 Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxx> v2: change hmac_setkey() return type to unsigned int to fix the warning. --- drivers/crypto/ccree/cc_aead.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c index d3e8faa..64d318d 100644 --- a/drivers/crypto/ccree/cc_aead.c +++ b/drivers/crypto/ccree/cc_aead.c @@ -293,7 +293,8 @@ static unsigned int xcbc_setkey(struct cc_hw_desc *desc, return 4; } -static int hmac_setkey(struct cc_hw_desc *desc, struct cc_aead_ctx *ctx) +static unsigned int hmac_setkey(struct cc_hw_desc *desc, + struct cc_aead_ctx *ctx) { unsigned int hmac_pad_const[2] = { HMAC_IPAD_CONST, HMAC_OPAD_CONST }; unsigned int digest_ofs = 0; -- 2.7.4