Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH 2/2] crypto: atmel-aes - Change data type for "lastc" buffer | Date | Fri, 15 Nov 2019 13:49:09 +0000 |
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From: Tudor Ambarus <tudor.ambarus@microchip.com>
In case of in-place decryption, the "lastc" buffer is used to copy the last ciphertext block before the decryption of the message. It is later used to update the req->iv of the skcipher_request.
"lastc" variable is not used to interact with the hardware, there is no restriction to be of type "u32". Change the type of "lastc" to "u8".
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> --- drivers/crypto/atmel-aes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 3c88c164c3dc..91092504bc96 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -155,7 +155,7 @@ struct atmel_aes_authenc_ctx { struct atmel_aes_reqctx { unsigned long mode; - u32 lastc[AES_BLOCK_SIZE / sizeof(u32)]; + u8 lastc[AES_BLOCK_SIZE]; }; #if IS_ENABLED(CONFIG_CRYPTO_DEV_ATMEL_AUTHENC) -- 2.9.5
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