It is bad to use hardcoded values directly in the code. Signed-off-by: Alexey Romanov <avromanov@xxxxxxxxxxxxxxxxx> Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 24 ++++++++++----------- drivers/crypto/amlogic/amlogic-gxl.h | 16 ++++++++------ 2 files changed, 21 insertions(+), 19 deletions(-) diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c index bc3092a8a2c2..c662c4b86e97 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c +++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c @@ -141,8 +141,8 @@ static int meson_cipher(struct skcipher_request *areq) ivsize, 0); } } - if (keyivlen == 24) - keyivlen = 32; + if (keyivlen == AES_KEYSIZE_192) + keyivlen = AES_MAX_KEY_SIZE; phykeyiv = dma_map_single(mc->dev, bkeyiv, keyivlen, DMA_TO_DEVICE); @@ -161,7 +161,7 @@ static int meson_cipher(struct skcipher_request *areq) todo = min(keyivlen - eat, 16u); desc->t_src = cpu_to_le32(phykeyiv + i * 16); desc->t_dst = cpu_to_le32(i * 16); - v = (MODE_KEY << 20) | DESC_OWN | 16; + v = DESC_MODE_KEY | DESC_OWN | 16; desc->t_status = cpu_to_le32(v); eat += todo; @@ -205,7 +205,7 @@ static int meson_cipher(struct skcipher_request *areq) desc->t_src = cpu_to_le32(sg_dma_address(src_sg)); desc->t_dst = cpu_to_le32(sg_dma_address(dst_sg)); todo = min(len, sg_dma_len(src_sg)); - v = (op->keymode << 20) | DESC_OWN | todo | (algt->blockmode << 26); + v = op->keymode | DESC_OWN | todo | algt->blockmode; if (rctx->op_dir) v |= DESC_ENCRYPTION; len -= todo; @@ -348,14 +348,14 @@ static int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, struct meson_dev *mc = op->mc; switch (keylen) { - case 128 / 8: - op->keymode = MODE_AES_128; + case AES_KEYSIZE_128: + op->keymode = DESC_MODE_AES_128; break; - case 192 / 8: - op->keymode = MODE_AES_192; + case AES_KEYSIZE_192: + op->keymode = DESC_MODE_AES_192; break; - case 256 / 8: - op->keymode = MODE_AES_256; + case AES_KEYSIZE_256: + op->keymode = DESC_MODE_AES_256; break; default: dev_dbg(mc->dev, "ERROR: Invalid keylen %u\n", keylen); @@ -373,7 +373,7 @@ static int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, static struct meson_alg_template algs[] = { { .type = CRYPTO_ALG_TYPE_SKCIPHER, - .blockmode = MESON_OPMODE_CBC, + .blockmode = DESC_OPMODE_CBC, .alg.skcipher.base = { .base = { .cra_name = "cbc(aes)", @@ -402,7 +402,7 @@ static struct meson_alg_template algs[] = { }, { .type = CRYPTO_ALG_TYPE_SKCIPHER, - .blockmode = MESON_OPMODE_ECB, + .blockmode = DESC_OPMODE_ECB, .alg.skcipher.base = { .base = { .cra_name = "ecb(aes)", diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h index 9d66903aa73d..1ab3462dea42 100644 --- a/drivers/crypto/amlogic/amlogic-gxl.h +++ b/drivers/crypto/amlogic/amlogic-gxl.h @@ -11,19 +11,21 @@ #include <linux/crypto.h> #include <linux/scatterlist.h> -#define MODE_KEY 1 -#define MODE_AES_128 0x8 -#define MODE_AES_192 0x9 -#define MODE_AES_256 0xa - #define MESON_DECRYPT 0 #define MESON_ENCRYPT 1 -#define MESON_OPMODE_ECB 0 -#define MESON_OPMODE_CBC 1 +#define DESC_MODE_KEY (0x1 << 20) +#define DESC_MODE_AES_128 (0x8 << 20) +#define DESC_MODE_AES_192 (0x9 << 20) +#define DESC_MODE_AES_256 (0xa << 20) #define MAXDESC 64 +#define DESC_OPMODE_ECB (0 << 26) +#define DESC_OPMODE_CBC (1 << 26) + +#define DESC_MAXLEN GENMASK(16, 0) + #define DESC_LAST BIT(18) #define DESC_ENCRYPTION BIT(28) #define DESC_OWN BIT(31) -- 2.34.1