staging: ccree: remove last remnants of sblkcipher

The cipher code had some left overs of an attempt to support
synch. cipher API with the HW. Remove the code handling this.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ccree/ssi_cipher.c b/drivers/staging/ccree/ssi_cipher.c
index e16fd36072e26839acdba82a0c86a152a58904ea..2dfc6a3bd4c1ff9c0cb6f4dc295e997614bdcf3f 100644 (file)
--- a/drivers/staging/ccree/ssi_cipher.c
+++ b/drivers/staging/ccree/ssi_cipher.c
@@ -36,7 +36,6 @@
 #define MAX_ABLKCIPHER_SEQ_LEN 6
 
 #define template_ablkcipher    template_u.ablkcipher
-#define template_sblkcipher    template_u.blkcipher
 
 #define SSI_MIN_AES_XTS_SIZE 0x10
 #define SSI_MAX_AES_XTS_SIZE 0x2000
@@ -886,69 +885,6 @@ static void ssi_ablkcipher_complete(struct device *dev, void *ssi_req, void __io
                               ivsize, areq, cc_base);
 }
 
-
-
-static int ssi_sblkcipher_init(struct crypto_tfm *tfm)
-{
-       struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-
-       /* Allocate sync ctx buffer */
-       ctx_p->sync_ctx = kmalloc(sizeof(struct blkcipher_req_ctx), GFP_KERNEL|GFP_DMA);
-       if (!ctx_p->sync_ctx) {
-               SSI_LOG_ERR("Allocating sync ctx buffer in context failed\n");
-               return -ENOMEM;
-       }
-       SSI_LOG_DEBUG("Allocated sync ctx buffer in context ctx_p->sync_ctx=@%p\n",
-                                                               ctx_p->sync_ctx);
-
-       return ssi_blkcipher_init(tfm);
-}
-
-
-static void ssi_sblkcipher_exit(struct crypto_tfm *tfm)
-{
-       struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-
-       kfree(ctx_p->sync_ctx);
-       SSI_LOG_DEBUG("Free sync ctx buffer in context ctx_p->sync_ctx=@%p\n", ctx_p->sync_ctx);
-
-       ssi_blkcipher_exit(tfm);
-}
-
-#ifdef SYNC_ALGS
-static int ssi_sblkcipher_encrypt(struct blkcipher_desc *desc,
-                        struct scatterlist *dst, struct scatterlist *src,
-                        unsigned int nbytes)
-{
-       struct crypto_blkcipher *blk_tfm = desc->tfm;
-       struct crypto_tfm *tfm = crypto_blkcipher_tfm(blk_tfm);
-       struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-       struct blkcipher_req_ctx *req_ctx = ctx_p->sync_ctx;
-       unsigned int ivsize = crypto_blkcipher_ivsize(blk_tfm);
-
-       req_ctx->backup_info = desc->info;
-       req_ctx->is_giv = false;
-
-       return ssi_blkcipher_process(tfm, req_ctx, dst, src, nbytes, desc->info, ivsize, NULL, DRV_CRYPTO_DIRECTION_ENCRYPT);
-}
-
-static int ssi_sblkcipher_decrypt(struct blkcipher_desc *desc,
-                        struct scatterlist *dst, struct scatterlist *src,
-                        unsigned int nbytes)
-{
-       struct crypto_blkcipher *blk_tfm = desc->tfm;
-       struct crypto_tfm *tfm = crypto_blkcipher_tfm(blk_tfm);
-       struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-       struct blkcipher_req_ctx *req_ctx = ctx_p->sync_ctx;
-       unsigned int ivsize = crypto_blkcipher_ivsize(blk_tfm);
-
-       req_ctx->backup_info = desc->info;
-       req_ctx->is_giv = false;
-
-       return ssi_blkcipher_process(tfm, req_ctx, dst, src, nbytes, desc->info, ivsize, NULL, DRV_CRYPTO_DIRECTION_DECRYPT);
-}
-#endif
-
 /* Async wrap functions */
 
 static int ssi_ablkcipher_init(struct crypto_tfm *tfm)
@@ -1014,7 +950,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_XTS,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
        {
                .name = "xts(aes)",
@@ -1031,7 +966,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_XTS,
                .flow_mode = S_DIN_to_AES,
-       .synchronous = false,
        },
        {
                .name = "xts(aes)",
@@ -1048,7 +982,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_XTS,
                .flow_mode = S_DIN_to_AES,
-       .synchronous = false,
        },
 #endif /*SSI_CC_HAS_AES_XTS*/
 #if SSI_CC_HAS_AES_ESSIV
@@ -1067,7 +1000,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ESSIV,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
        {
                .name = "essiv(aes)",
@@ -1084,7 +1016,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ESSIV,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
        {
                .name = "essiv(aes)",
@@ -1101,7 +1032,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ESSIV,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
 #endif /*SSI_CC_HAS_AES_ESSIV*/
 #if SSI_CC_HAS_AES_BITLOCKER
@@ -1120,7 +1050,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_BITLOCKER,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
        {
                .name = "bitlocker(aes)",
@@ -1137,7 +1066,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_BITLOCKER,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
        {
                .name = "bitlocker(aes)",
@@ -1154,7 +1082,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_BITLOCKER,
                .flow_mode = S_DIN_to_AES,
-               .synchronous = false,
        },
 #endif /*SSI_CC_HAS_AES_BITLOCKER*/
        {
@@ -1172,7 +1099,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ECB,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
        {
                .name = "cbc(aes)",
@@ -1186,10 +1112,9 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        .min_keysize = AES_MIN_KEY_SIZE,
                        .max_keysize = AES_MAX_KEY_SIZE,
                        .ivsize = AES_BLOCK_SIZE,
-                       },
+               },
                .cipher_mode = DRV_CIPHER_CBC,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
        {
                .name = "ofb(aes)",
@@ -1206,7 +1131,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_OFB,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
 #if SSI_CC_HAS_AES_CTS
        {
@@ -1224,7 +1148,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_CBC_CTS,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
 #endif
        {
@@ -1242,7 +1165,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_CTR,
                .flow_mode = S_DIN_to_AES,
-        .synchronous = false,
        },
        {
                .name = "cbc(des3_ede)",
@@ -1259,7 +1181,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_CBC,
                .flow_mode = S_DIN_to_DES,
-        .synchronous = false,
        },
        {
                .name = "ecb(des3_ede)",
@@ -1276,7 +1197,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ECB,
                .flow_mode = S_DIN_to_DES,
-        .synchronous = false,
        },
        {
                .name = "cbc(des)",
@@ -1293,7 +1213,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_CBC,
                .flow_mode = S_DIN_to_DES,
-        .synchronous = false,
        },
        {
                .name = "ecb(des)",
@@ -1310,7 +1229,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_CIPHER_ECB,
                .flow_mode = S_DIN_to_DES,
-        .synchronous = false,
        },
 #if SSI_CC_HAS_MULTI2
        {
@@ -1328,7 +1246,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_MULTI2_CBC,
                .flow_mode = S_DIN_to_MULTI2,
-        .synchronous = false,
        },
        {
                .name = "ofb(multi2)",
@@ -1345,7 +1262,6 @@ static struct ssi_alg_template blkcipher_algs[] = {
                        },
                .cipher_mode = DRV_MULTI2_OFB,
                .flow_mode = S_DIN_to_MULTI2,
-        .synchronous = false,
        },
 #endif /*SSI_CC_HAS_MULTI2*/
 };
@@ -1373,18 +1289,12 @@ struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template *templa
        alg->cra_alignmask = 0;
        alg->cra_ctxsize = sizeof(struct ssi_ablkcipher_ctx);
 
-       alg->cra_init = template->synchronous? ssi_sblkcipher_init:ssi_ablkcipher_init;
-       alg->cra_exit = template->synchronous? ssi_sblkcipher_exit:ssi_blkcipher_exit;
-       alg->cra_type = template->synchronous? &crypto_blkcipher_type:&crypto_ablkcipher_type;
-       if(template->synchronous) {
-               alg->cra_blkcipher = template->template_sblkcipher;
-               alg->cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
-                               template->type;
-       } else {
-               alg->cra_ablkcipher = template->template_ablkcipher;
-               alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
+       alg->cra_init = ssi_ablkcipher_init;
+       alg->cra_exit = ssi_blkcipher_exit;
+       alg->cra_type = &crypto_ablkcipher_type;
+       alg->cra_ablkcipher = template->template_ablkcipher;
+       alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
                                template->type;
-       }
 
        t_alg->cipher_mode = template->cipher_mode;
        t_alg->flow_mode = template->flow_mode;

diff --git a/drivers/staging/ccree/ssi_driver.h b/drivers/staging/ccree/ssi_driver.h
index 4c6eef9f97f5a7ec8d97bc3f66717dcd93422551..34bd7efb1907c9613a0efe6e769a41eefdacea4a 100644 (file)
--- a/drivers/staging/ccree/ssi_driver.h
+++ b/drivers/staging/ccree/ssi_driver.h
@@ -176,7 +176,6 @@ struct ssi_alg_template {
        int cipher_mode;
        int flow_mode; /* Note: currently, refers to the cipher mode only. */
        int auth_mode;
-       bool synchronous;
        struct ssi_drvdata *drvdata;
 };