From 922b213ad22f93fb2788ce119084622ab3d25bf8 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 30 Nov 2023 18:12:55 +0800 Subject: [PATCH 012/116] crypto: starfive - Remove cfb and ofb Remove the unused CFB/OFB implementation. Signed-off-by: Herbert Xu --- drivers/crypto/starfive/jh7110-aes.c | 71 +-------------------------- drivers/crypto/starfive/jh7110-cryp.h | 2 - 2 files changed, 1 insertion(+), 72 deletions(-) --- a/drivers/crypto/starfive/jh7110-aes.c +++ b/drivers/crypto/starfive/jh7110-aes.c @@ -262,12 +262,7 @@ static int starfive_aes_hw_init(struct s rctx->csr.aes.mode = hw_mode; rctx->csr.aes.cmode = !is_encrypt(cryp); rctx->csr.aes.ie = 1; - - if (hw_mode == STARFIVE_AES_MODE_CFB || - hw_mode == STARFIVE_AES_MODE_OFB) - rctx->csr.aes.stmode = STARFIVE_AES_MODE_XFB_128; - else - rctx->csr.aes.stmode = STARFIVE_AES_MODE_XFB_1; + rctx->csr.aes.stmode = STARFIVE_AES_MODE_XFB_1; if (cryp->side_chan) { rctx->csr.aes.delay_aes = 1; @@ -294,8 +289,6 @@ static int starfive_aes_hw_init(struct s starfive_aes_ccm_init(ctx); starfive_aes_aead_hw_start(ctx, hw_mode); break; - case STARFIVE_AES_MODE_OFB: - case STARFIVE_AES_MODE_CFB: case STARFIVE_AES_MODE_CBC: case STARFIVE_AES_MODE_CTR: starfive_aes_write_iv(ctx, (void *)cryp->req.sreq->iv); @@ -785,26 +778,6 @@ static int starfive_aes_cbc_decrypt(stru return starfive_aes_crypt(req, STARFIVE_AES_MODE_CBC); } -static int starfive_aes_cfb_encrypt(struct skcipher_request *req) -{ - return starfive_aes_crypt(req, STARFIVE_AES_MODE_CFB | FLG_ENCRYPT); -} - -static int starfive_aes_cfb_decrypt(struct skcipher_request *req) -{ - return starfive_aes_crypt(req, STARFIVE_AES_MODE_CFB); -} - -static int starfive_aes_ofb_encrypt(struct skcipher_request *req) -{ - return starfive_aes_crypt(req, STARFIVE_AES_MODE_OFB | FLG_ENCRYPT); -} - -static int starfive_aes_ofb_decrypt(struct skcipher_request *req) -{ - return starfive_aes_crypt(req, STARFIVE_AES_MODE_OFB); -} - static int starfive_aes_ctr_encrypt(struct skcipher_request *req) { return starfive_aes_crypt(req, STARFIVE_AES_MODE_CTR | FLG_ENCRYPT); @@ -903,48 +876,6 @@ static struct skcipher_engine_alg skciph .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC, .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 0xf, - .cra_module = THIS_MODULE, - }, - .op = { - .do_one_request = starfive_aes_do_one_req, - }, -}, { - .base.init = starfive_aes_init_tfm, - .base.setkey = starfive_aes_setkey, - .base.encrypt = starfive_aes_cfb_encrypt, - .base.decrypt = starfive_aes_cfb_decrypt, - .base.min_keysize = AES_MIN_KEY_SIZE, - .base.max_keysize = AES_MAX_KEY_SIZE, - .base.ivsize = AES_BLOCK_SIZE, - .base.base = { - .cra_name = "cfb(aes)", - .cra_driver_name = "starfive-cfb-aes", - .cra_priority = 200, - .cra_flags = CRYPTO_ALG_ASYNC, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 0xf, - .cra_module = THIS_MODULE, - }, - .op = { - .do_one_request = starfive_aes_do_one_req, - }, -}, { - .base.init = starfive_aes_init_tfm, - .base.setkey = starfive_aes_setkey, - .base.encrypt = starfive_aes_ofb_encrypt, - .base.decrypt = starfive_aes_ofb_decrypt, - .base.min_keysize = AES_MIN_KEY_SIZE, - .base.max_keysize = AES_MAX_KEY_SIZE, - .base.ivsize = AES_BLOCK_SIZE, - .base.base = { - .cra_name = "ofb(aes)", - .cra_driver_name = "starfive-ofb-aes", - .cra_priority = 200, - .cra_flags = CRYPTO_ALG_ASYNC, - .cra_blocksize = 1, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), .cra_alignmask = 0xf, .cra_module = THIS_MODULE, --- a/drivers/crypto/starfive/jh7110-cryp.h +++ b/drivers/crypto/starfive/jh7110-cryp.h @@ -51,8 +51,6 @@ union starfive_aes_csr { u32 ccm_start :1; #define STARFIVE_AES_MODE_ECB 0x0 #define STARFIVE_AES_MODE_CBC 0x1 -#define STARFIVE_AES_MODE_CFB 0x2 -#define STARFIVE_AES_MODE_OFB 0x3 #define STARFIVE_AES_MODE_CTR 0x4 #define STARFIVE_AES_MODE_CCM 0x5 #define STARFIVE_AES_MODE_GCM 0x6