Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 12/22] crypto: bcm - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:20:00 +0300 |
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From: Andrei Botila <andrei.botila@nxp.com>
Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero.
Cc: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- drivers/crypto/bcm/cipher.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c index 8a7fa1ae1ade..8a6f225f4db7 100644 --- a/drivers/crypto/bcm/cipher.c +++ b/drivers/crypto/bcm/cipher.c @@ -1754,6 +1754,9 @@ static int skcipher_enqueue(struct skcipher_request *req, bool encrypt) crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); int err; + if (!req->cryptlen && ctx->cipher.mode == CIPHER_MODE_XTS) + return 0; + flow_log("%s() enc:%u\n", __func__, encrypt); rctx->gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | -- 2.17.1
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