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staging: ccree: remove unproven likely/unlikely 

The ccree code made a lot of use of likely/unlikely qualifiers without
proven measurements showing any benefits. Remove them all until we
see what is justified and what is not.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gilad Ben-Yossef 2017-12-03 13:58:13 +00:00 committed by Greg Kroah-Hartman
parent 8977c8248f
commit 9db83b4e4e
8 changed files with 209 additions and 227 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
drivers/staging/ccree/ssi_aead.c
View File

@ -251,7 +251,7 @@ static void ssi_aead_complete(struct device *dev, void *ssi_req)
err = -EBADMSG;
}
} else { /*ENCRYPT*/
if (unlikely(areq_ctx->is_icv_fragmented)) {
if (areq_ctx->is_icv_fragmented) {
u32 skip = areq->cryptlen + areq_ctx->dst_offset;
cc_copy_sg_portion(dev, areq_ctx->mac_buf,
@ -412,7 +412,7 @@ static int validate_keys_sizes(struct ssi_aead_ctx *ctx)
return -EINVAL;
}
/* Check cipher key size */
if (unlikely(ctx->flow_mode == S_DIN_to_DES)) {
if (ctx->flow_mode == S_DIN_to_DES) {
if (ctx->enc_keylen != DES3_EDE_KEY_SIZE) {
dev_err(dev, "Invalid cipher(3DES) key size: %u\n",
ctx->enc_keylen);
@ -465,10 +465,10 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key,
hashmode = DRV_HASH_HW_SHA256;
}
if (likely(keylen != 0)) {
if (keylen != 0) {
key_dma_addr = dma_map_single(dev, (void *)key, keylen,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, key_dma_addr))) {
if (dma_mapping_error(dev, key_dma_addr)) {
dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
key, keylen);
return -ENOMEM;
@ -547,10 +547,10 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key,
}
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
if (unlikely(rc))
if (rc)
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
if (likely(key_dma_addr))
if (key_dma_addr)
dma_unmap_single(dev, key_dma_addr, keylen, DMA_TO_DEVICE);
return rc;
@ -607,7 +607,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
}
rc = validate_keys_sizes(ctx);
if (unlikely(rc))
if (rc)
goto badkey;
/* STAT_PHASE_1: Copy key to ctx */
@ -646,7 +646,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
if (seq_len > 0) { /* For CCM there is no sequence to setup the key */
rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 0);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
goto setkey_error;
}
@ -818,7 +818,7 @@ ssi_aead_process_authenc_data_desc(
ssi_sram_addr_t mlli_addr = areq_ctx->assoc.sram_addr;
u32 mlli_nents = areq_ctx->assoc.mlli_nents;
if (likely(areq_ctx->is_single_pass)) {
if (areq_ctx->is_single_pass) {
if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) {
mlli_addr = areq_ctx->dst.sram_addr;
mlli_nents = areq_ctx->dst.mlli_nents;
@ -1202,10 +1202,9 @@ static void ssi_aead_load_mlli_to_sram(
struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
struct device *dev = drvdata_to_dev(ctx->drvdata);
if (unlikely(
req_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI ||
req_ctx->data_buff_type == SSI_DMA_BUF_MLLI ||
!req_ctx->is_single_pass)) {
if (req_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI ||
req_ctx->data_buff_type == SSI_DMA_BUF_MLLI ||
!req_ctx->is_single_pass) {
dev_dbg(dev, "Copy-to-sram: mlli_dma=%08x, mlli_size=%u\n",
(unsigned int)ctx->drvdata->mlli_sram_addr,
req_ctx->mlli_params.mlli_len);
@ -1231,17 +1230,17 @@ static enum cc_flow_mode ssi_aead_get_data_flow_mode(
if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) {
if (setup_flow_mode == S_DIN_to_AES)
data_flow_mode = likely(is_single_pass) ?
data_flow_mode = is_single_pass ?
AES_to_HASH_and_DOUT : DIN_AES_DOUT;
else
data_flow_mode = likely(is_single_pass) ?
data_flow_mode = is_single_pass ?
DES_to_HASH_and_DOUT : DIN_DES_DOUT;
} else { /* Decrypt */
if (setup_flow_mode == S_DIN_to_AES)
data_flow_mode = likely(is_single_pass) ?
data_flow_mode = is_single_pass ?
AES_and_HASH : DIN_AES_DOUT;
else
data_flow_mode = likely(is_single_pass) ?
data_flow_mode = is_single_pass ?
DES_and_HASH : DIN_DES_DOUT;
}
@ -1367,16 +1366,16 @@ static int validate_data_size(struct ssi_aead_ctx *ctx,
unsigned int cipherlen = (direct == DRV_CRYPTO_DIRECTION_DECRYPT) ?
(req->cryptlen - ctx->authsize) : req->cryptlen;
if (unlikely(direct == DRV_CRYPTO_DIRECTION_DECRYPT &&
req->cryptlen < ctx->authsize))
if (direct == DRV_CRYPTO_DIRECTION_DECRYPT &&
req->cryptlen < ctx->authsize)
goto data_size_err;
areq_ctx->is_single_pass = true; /*defaulted to fast flow*/
switch (ctx->flow_mode) {
case S_DIN_to_AES:
if (unlikely(ctx->cipher_mode == DRV_CIPHER_CBC &&
!IS_ALIGNED(cipherlen, AES_BLOCK_SIZE)))
if (ctx->cipher_mode == DRV_CIPHER_CBC &&
!IS_ALIGNED(cipherlen, AES_BLOCK_SIZE))
goto data_size_err;
if (ctx->cipher_mode == DRV_CIPHER_CCM)
break;
@ -1395,9 +1394,9 @@ static int validate_data_size(struct ssi_aead_ctx *ctx,
break;
case S_DIN_to_DES:
if (unlikely(!IS_ALIGNED(cipherlen, DES_BLOCK_SIZE)))
if (!IS_ALIGNED(cipherlen, DES_BLOCK_SIZE))
goto data_size_err;
if (unlikely(!IS_ALIGNED(assoclen, DES_BLOCK_SIZE)))
if (!IS_ALIGNED(assoclen, DES_BLOCK_SIZE))
areq_ctx->is_single_pass = false;
break;
default:
@ -2024,7 +2023,7 @@ static int ssi_aead_process(struct aead_request *req,
/* STAT_PHASE_0: Init and sanity checks */
/* Check data length according to mode */
if (unlikely(validate_data_size(ctx, direct, req))) {
if (validate_data_size(ctx, direct, req)) {
dev_err(dev, "Unsupported crypt/assoc len %d/%d.\n",
req->cryptlen, req->assoclen);
crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN);
@ -2073,7 +2072,7 @@ static int ssi_aead_process(struct aead_request *req,
#if SSI_CC_HAS_AES_CCM
if (ctx->cipher_mode == DRV_CIPHER_CCM) {
rc = config_ccm_adata(req);
if (unlikely(rc)) {
if (rc) {
dev_dbg(dev, "config_ccm_adata() returned with a failure %d!",
rc);
goto exit;
@ -2088,7 +2087,7 @@ static int ssi_aead_process(struct aead_request *req,
#if SSI_CC_HAS_AES_GCM
if (ctx->cipher_mode == DRV_CIPHER_GCTR) {
rc = config_gcm_context(req);
if (unlikely(rc)) {
if (rc) {
dev_dbg(dev, "config_gcm_context() returned with a failure %d!",
rc);
goto exit;
@ -2097,7 +2096,7 @@ static int ssi_aead_process(struct aead_request *req,
#endif /*SSI_CC_HAS_AES_GCM*/
rc = cc_map_aead_request(ctx->drvdata, req);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "map_request() failed\n");
goto exit;
}
@ -2173,7 +2172,7 @@ static int ssi_aead_process(struct aead_request *req,
rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_aead_request(dev, req);
}
@ -2829,7 +2828,7 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata)
}
t_alg->drvdata = drvdata;
rc = crypto_register_aead(&t_alg->aead_alg);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "%s alg registration failed\n",
t_alg->aead_alg.base.cra_driver_name);
goto fail2;

154
drivers/staging/ccree/ssi_buffer_mgr.c
View File

@ -247,7 +247,7 @@ static int cc_generate_mlli(
mlli_params->mlli_virt_addr = dma_pool_alloc(
mlli_params->curr_pool, GFP_KERNEL,
&mlli_params->mlli_dma_addr);
if (unlikely(!mlli_params->mlli_virt_addr)) {
if (!mlli_params->mlli_virt_addr) {
dev_err(dev, "dma_pool_alloc() failed\n");
rc = -ENOMEM;
goto build_mlli_exit;
@ -350,7 +350,7 @@ cc_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents,
for (i = 0; i < nents; i++) {
if (!l_sg)
break;
if (unlikely(dma_map_sg(dev, l_sg, 1, direction) != 1)) {
if (dma_map_sg(dev, l_sg, 1, direction) != 1) {
dev_err(dev, "dma_map_page() sg buffer failed\n");
goto err;
}
@ -379,7 +379,7 @@ static int cc_map_sg(
if (sg_is_last(sg)) {
/* One entry only case -set to DLLI */
if (unlikely(dma_map_sg(dev, sg, 1, direction) != 1)) {
if (dma_map_sg(dev, sg, 1, direction) != 1) {
dev_err(dev, "dma_map_sg() single buffer failed\n");
return -ENOMEM;
}
@ -403,7 +403,7 @@ static int cc_map_sg(
* be changed from the original sgl nents
*/
*mapped_nents = dma_map_sg(dev, sg, *nents, direction);
if (unlikely(*mapped_nents == 0)) {
if (*mapped_nents == 0) {
*nents = 0;
dev_err(dev, "dma_map_sg() sg buffer failed\n");
return -ENOMEM;
@ -414,7 +414,7 @@ static int cc_map_sg(
*/
*mapped_nents = cc_dma_map_sg(dev, sg, *nents,
direction);
if (unlikely(*mapped_nents != *nents)) {
if (*mapped_nents != *nents) {
*nents = *mapped_nents;
dev_err(dev, "dma_map_sg() sg buffer failed\n");
return -ENOMEM;
@ -436,8 +436,7 @@ ssi_aead_handle_config_buf(struct device *dev,
/* create sg for the current buffer */
sg_init_one(&areq_ctx->ccm_adata_sg, config_data,
AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size);
if (unlikely(dma_map_sg(dev, &areq_ctx->ccm_adata_sg, 1,
DMA_TO_DEVICE) != 1)) {
if (dma_map_sg(dev, &areq_ctx->ccm_adata_sg, 1, DMA_TO_DEVICE) != 1) {
dev_err(dev, "dma_map_sg() config buffer failed\n");
return -ENOMEM;
}
@ -463,8 +462,7 @@ static int ssi_ahash_handle_curr_buf(struct device *dev,
dev_dbg(dev, " handle curr buff %x set to DLLI\n", curr_buff_cnt);
/* create sg for the current buffer */
sg_init_one(areq_ctx->buff_sg, curr_buff, curr_buff_cnt);
if (unlikely(dma_map_sg(dev, areq_ctx->buff_sg, 1,
DMA_TO_DEVICE) != 1)) {
if (dma_map_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE) != 1) {
dev_err(dev, "dma_map_sg() src buffer failed\n");
return -ENOMEM;
}
@ -490,7 +488,7 @@ void cc_unmap_blkcipher_request(
{
struct blkcipher_req_ctx *req_ctx = (struct blkcipher_req_ctx *)ctx;
if (likely(req_ctx->gen_ctx.iv_dma_addr)) {
if (req_ctx->gen_ctx.iv_dma_addr) {
dev_dbg(dev, "Unmapped iv: iv_dma_addr=%pad iv_size=%u\n",
&req_ctx->gen_ctx.iv_dma_addr, ivsize);
dma_unmap_single(dev, req_ctx->gen_ctx.iv_dma_addr,
@ -537,15 +535,14 @@ int cc_map_blkcipher_request(
sg_data.num_of_buffers = 0;
/* Map IV buffer */
if (likely(ivsize)) {
if (ivsize) {
dump_byte_array("iv", (u8 *)info, ivsize);
req_ctx->gen_ctx.iv_dma_addr =
dma_map_single(dev, (void *)info,
ivsize,
req_ctx->is_giv ? DMA_BIDIRECTIONAL :
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev,
req_ctx->gen_ctx.iv_dma_addr))) {
if (dma_mapping_error(dev, req_ctx->gen_ctx.iv_dma_addr)) {
dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n",
ivsize, info);
return -ENOMEM;
@ -559,16 +556,16 @@ int cc_map_blkcipher_request(
/* Map the src SGL */
rc = cc_map_sg(dev, src, nbytes, DMA_BIDIRECTIONAL, &req_ctx->in_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, &mapped_nents);
if (unlikely(rc)) {
if (rc) {
rc = -ENOMEM;
goto ablkcipher_exit;
}
if (mapped_nents > 1)
req_ctx->dma_buf_type = SSI_DMA_BUF_MLLI;
if (unlikely(src == dst)) {
if (src == dst) {
/* Handle inplace operation */
if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) {
if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) {
req_ctx->out_nents = 0;
cc_add_sg_entry(dev, &sg_data, req_ctx->in_nents, src,
nbytes, 0, true,
@ -576,17 +573,16 @@ int cc_map_blkcipher_request(
}
} else {
/* Map the dst sg */
if (unlikely(cc_map_sg(dev, dst, nbytes, DMA_BIDIRECTIONAL,
&req_ctx->out_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy,
&mapped_nents))) {
if (cc_map_sg(dev, dst, nbytes, DMA_BIDIRECTIONAL,
&req_ctx->out_nents, LLI_MAX_NUM_OF_DATA_ENTRIES,
&dummy, &mapped_nents)) {
rc = -ENOMEM;
goto ablkcipher_exit;
}
if (mapped_nents > 1)
req_ctx->dma_buf_type = SSI_DMA_BUF_MLLI;
if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) {
if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) {
cc_add_sg_entry(dev, &sg_data, req_ctx->in_nents, src,
nbytes, 0, true,
&req_ctx->in_mlli_nents);
@ -596,10 +592,10 @@ int cc_map_blkcipher_request(
}
}
if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) {
if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
rc = cc_generate_mlli(dev, &sg_data, mlli_params);
if (unlikely(rc))
if (rc)
goto ablkcipher_exit;
}
@ -690,7 +686,7 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req)
cc_get_sgl_nents(dev, req->src, size_to_unmap,
&dummy, &chained),
DMA_BIDIRECTIONAL);
if (unlikely(req->src != req->dst)) {
if (req->src != req->dst) {
dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n",
sg_virt(req->dst));
dma_unmap_sg(dev, req->dst,
@ -700,7 +696,7 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req)
}
if (drvdata->coherent &&
areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT &&
likely(req->src == req->dst)) {
req->src == req->dst) {
/* copy back mac from temporary location to deal with possible
* data memory overriding that caused by cache coherence
* problem.
@ -774,7 +770,7 @@ static int cc_aead_chain_iv(
struct device *dev = drvdata_to_dev(drvdata);
int rc = 0;
if (unlikely(!req->iv)) {
if (!req->iv) {
areq_ctx->gen_ctx.iv_dma_addr = 0;
goto chain_iv_exit;
}
@ -782,7 +778,7 @@ static int cc_aead_chain_iv(
areq_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, req->iv,
hw_iv_size,
DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr))) {
if (dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr)) {
dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n",
hw_iv_size, req->iv);
rc = -ENOMEM;
@ -831,7 +827,7 @@ static int cc_aead_chain_assoc(
goto chain_assoc_exit;
}
if (unlikely(req->assoclen == 0)) {
if (req->assoclen == 0) {
areq_ctx->assoc_buff_type = SSI_DMA_BUF_NULL;
areq_ctx->assoc.nents = 0;
areq_ctx->assoc.mlli_nents = 0;
@ -861,7 +857,7 @@ static int cc_aead_chain_assoc(
mapped_nents++;
}
}
if (unlikely(mapped_nents > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) {
if (mapped_nents > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) {
dev_err(dev, "Too many fragments. current %d max %d\n",
mapped_nents, LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
return -ENOMEM;
@ -872,8 +868,7 @@ static int cc_aead_chain_assoc(
* ccm header configurations
*/
if (areq_ctx->ccm_hdr_size != ccm_header_size_null) {
if (unlikely((mapped_nents + 1) >
LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) {
if ((mapped_nents + 1) > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) {
dev_err(dev, "CCM case.Too many fragments. Current %d max %d\n",
(areq_ctx->assoc.nents + 1),
LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
@ -882,14 +877,12 @@ static int cc_aead_chain_assoc(
}
}
if (likely(mapped_nents == 1) &&
areq_ctx->ccm_hdr_size == ccm_header_size_null)
if (mapped_nents == 1 && areq_ctx->ccm_hdr_size == ccm_header_size_null)
areq_ctx->assoc_buff_type = SSI_DMA_BUF_DLLI;
else
areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI;
if (unlikely((do_chain) ||
areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI)) {
if ((do_chain) || areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI) {
dev_dbg(dev, "Chain assoc: buff_type=%s nents=%u\n",
cc_dma_buf_type(areq_ctx->assoc_buff_type),
areq_ctx->assoc.nents);
@ -912,7 +905,7 @@ static void cc_prepare_aead_data_dlli(
unsigned int authsize = areq_ctx->req_authsize;
areq_ctx->is_icv_fragmented = false;
if (likely(req->src == req->dst)) {
if (req->src == req->dst) {
/*INPLACE*/
areq_ctx->icv_dma_addr = sg_dma_address(
areq_ctx->src_sgl) +
@ -952,7 +945,7 @@ static int cc_prepare_aead_data_mlli(
int rc = 0, icv_nents;
struct device *dev = drvdata_to_dev(drvdata);
if (likely(req->src == req->dst)) {
if (req->src == req->dst) {
/*INPLACE*/
cc_add_sg_entry(dev, sg_data, areq_ctx->src.nents,
areq_ctx->src_sgl, areq_ctx->cryptlen,
@ -963,12 +956,12 @@ static int cc_prepare_aead_data_mlli(
areq_ctx->src.nents,
authsize, *src_last_bytes,
&areq_ctx->is_icv_fragmented);
if (unlikely(icv_nents < 0)) {
if (icv_nents < 0) {
rc = -ENOTSUPP;
goto prepare_data_mlli_exit;
}
if (unlikely(areq_ctx->is_icv_fragmented)) {
if (areq_ctx->is_icv_fragmented) {
/* Backup happens only when ICV is fragmented, ICV
* verification is made by CPU compare in order to
* simplify MAC verification upon request completion
@ -1013,7 +1006,7 @@ static int cc_prepare_aead_data_mlli(
areq_ctx->src.nents,
authsize, *src_last_bytes,
&areq_ctx->is_icv_fragmented);
if (unlikely(icv_nents < 0)) {
if (icv_nents < 0) {
rc = -ENOTSUPP;
goto prepare_data_mlli_exit;
}
@ -1022,7 +1015,7 @@ static int cc_prepare_aead_data_mlli(
* verification is made by CPU compare in order to simplify
* MAC verification upon request completion
*/
if (unlikely(areq_ctx->is_icv_fragmented)) {
if (areq_ctx->is_icv_fragmented) {
cc_copy_mac(dev, req, SSI_SG_TO_BUF);
areq_ctx->icv_virt_addr = areq_ctx->backup_mac;
@ -1051,12 +1044,12 @@ static int cc_prepare_aead_data_mlli(
areq_ctx->dst.nents,
authsize, *dst_last_bytes,
&areq_ctx->is_icv_fragmented);
if (unlikely(icv_nents < 0)) {
if (icv_nents < 0) {
rc = -ENOTSUPP;
goto prepare_data_mlli_exit;
}
if (likely(!areq_ctx->is_icv_fragmented)) {
if (!areq_ctx->is_icv_fragmented) {
/* Contig. ICV */
areq_ctx->icv_dma_addr = sg_dma_address(
&areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]) +
@ -1127,7 +1120,7 @@ static int cc_aead_chain_data(
sg_index += areq_ctx->src_sgl->length;
src_mapped_nents--;
}
if (unlikely(src_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) {
if (src_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES) {
dev_err(dev, "Too many fragments. current %d max %d\n",
src_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
return -ENOMEM;
@ -1148,7 +1141,7 @@ static int cc_aead_chain_data(
&areq_ctx->dst.nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dst_last_bytes,
&dst_mapped_nents);
if (unlikely(rc)) {
if (rc) {
rc = -ENOMEM;
goto chain_data_exit;
}
@ -1171,7 +1164,7 @@ static int cc_aead_chain_data(
sg_index += areq_ctx->dst_sgl->length;
dst_mapped_nents--;
}
if (unlikely(dst_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) {
if (dst_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES) {
dev_err(dev, "Too many fragments. current %d max %d\n",
dst_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
return -ENOMEM;
@ -1271,7 +1264,7 @@ int cc_map_aead_request(
*/
if (drvdata->coherent &&
areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT &&
likely(req->src == req->dst))
req->src == req->dst)
cc_copy_mac(dev, req, SSI_SG_TO_BUF);
/* cacluate the size for cipher remove ICV in decrypt*/
@ -1282,7 +1275,7 @@ int cc_map_aead_request(
dma_addr = dma_map_single(dev, areq_ctx->mac_buf, MAX_MAC_SIZE,
DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n",
MAX_MAC_SIZE, areq_ctx->mac_buf);
rc = -ENOMEM;
@ -1296,7 +1289,7 @@ int cc_map_aead_request(
dma_addr = dma_map_single(dev, addr, AES_BLOCK_SIZE,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n",
AES_BLOCK_SIZE, addr);
areq_ctx->ccm_iv0_dma_addr = 0;
@ -1317,7 +1310,7 @@ int cc_map_aead_request(
if (areq_ctx->cipher_mode == DRV_CIPHER_GCTR) {
dma_addr = dma_map_single(dev, areq_ctx->hkey, AES_BLOCK_SIZE,
DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping hkey %u B at va=%pK for DMA failed\n",
AES_BLOCK_SIZE, areq_ctx->hkey);
rc = -ENOMEM;
@ -1327,7 +1320,7 @@ int cc_map_aead_request(
dma_addr = dma_map_single(dev, &areq_ctx->gcm_len_block,
AES_BLOCK_SIZE, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping gcm_len_block %u B at va=%pK for DMA failed\n",
AES_BLOCK_SIZE, &areq_ctx->gcm_len_block);
rc = -ENOMEM;
@ -1338,7 +1331,7 @@ int cc_map_aead_request(
dma_addr = dma_map_single(dev, areq_ctx->gcm_iv_inc1,
AES_BLOCK_SIZE, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping gcm_iv_inc1 %u B at va=%pK for DMA failed\n",
AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc1));
areq_ctx->gcm_iv_inc1_dma_addr = 0;
@ -1350,7 +1343,7 @@ int cc_map_aead_request(
dma_addr = dma_map_single(dev, areq_ctx->gcm_iv_inc2,
AES_BLOCK_SIZE, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, dma_addr))) {
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Mapping gcm_iv_inc2 %u B at va=%pK for DMA failed\n",
AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc2));
areq_ctx->gcm_iv_inc2_dma_addr = 0;
@ -1372,12 +1365,12 @@ int cc_map_aead_request(
(LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES +
LLI_MAX_NUM_OF_DATA_ENTRIES),
&dummy, &mapped_nents);
if (unlikely(rc)) {
if (rc) {
rc = -ENOMEM;
goto aead_map_failure;
}
if (likely(areq_ctx->is_single_pass)) {
if (areq_ctx->is_single_pass) {
/*
* Create MLLI table for:
* (1) Assoc. data
@ -1385,13 +1378,13 @@ int cc_map_aead_request(
* Note: IV is contg. buffer (not an SGL)
*/
rc = cc_aead_chain_assoc(drvdata, req, &sg_data, true, false);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
rc = cc_aead_chain_iv(drvdata, req, &sg_data, true, false);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
rc = cc_aead_chain_data(drvdata, req, &sg_data, true, false);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
} else { /* DOUBLE-PASS flow */
/*
@ -1415,25 +1408,24 @@ int cc_map_aead_request(
* (4) MLLI for dst
*/
rc = cc_aead_chain_assoc(drvdata, req, &sg_data, false, true);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
rc = cc_aead_chain_iv(drvdata, req, &sg_data, false, true);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
rc = cc_aead_chain_data(drvdata, req, &sg_data, true, true);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
}
/* Mlli support -start building the MLLI according to the above
* results
*/
if (unlikely(
areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI ||
areq_ctx->data_buff_type == SSI_DMA_BUF_MLLI)) {
if (areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI ||
areq_ctx->data_buff_type == SSI_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
rc = cc_generate_mlli(dev, &sg_data, mlli_params);
if (unlikely(rc))
if (rc)
goto aead_map_failure;
cc_update_aead_mlli_nents(drvdata, req);
@ -1473,7 +1465,7 @@ int cc_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx,
sg_data.num_of_buffers = 0;
areq_ctx->in_nents = 0;
if (unlikely(nbytes == 0 && *curr_buff_cnt == 0)) {
if (nbytes == 0 && *curr_buff_cnt == 0) {
/* nothing to do */
return 0;
}
@ -1488,10 +1480,9 @@ int cc_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx,
}
if (src && nbytes > 0 && do_update) {
if (unlikely(cc_map_sg(dev, src, nbytes, DMA_TO_DEVICE,
&areq_ctx->in_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES,
&dummy, &mapped_nents))) {
if (cc_map_sg(dev, src, nbytes, DMA_TO_DEVICE,
&areq_ctx->in_nents, LLI_MAX_NUM_OF_DATA_ENTRIES,
&dummy, &mapped_nents)) {
goto unmap_curr_buff;
}
if (src && mapped_nents == 1 &&
@ -1507,12 +1498,12 @@ int cc_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx,
}
/*build mlli */
if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
/* add the src data to the sg_data */
cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src, nbytes,
0, true, &areq_ctx->mlli_nents);
if (unlikely(cc_generate_mlli(dev, &sg_data, mlli_params)))
if (cc_generate_mlli(dev, &sg_data, mlli_params))
goto fail_unmap_din;
}
/* change the buffer index for the unmap function */
@ -1563,7 +1554,7 @@ int cc_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx,
sg_data.num_of_buffers = 0;
areq_ctx->in_nents = 0;
if (unlikely(total_in_len < block_size)) {
if (total_in_len < block_size) {
dev_dbg(dev, " less than one block: curr_buff=%pK *curr_buff_cnt=0x%X copy_to=%pK\n",
curr_buff, *curr_buff_cnt, &curr_buff[*curr_buff_cnt]);
areq_ctx->in_nents =
@ -1604,11 +1595,10 @@ int cc_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx,
}
if (update_data_len > *curr_buff_cnt) {
if (unlikely(cc_map_sg(dev, src,
(update_data_len - *curr_buff_cnt),
DMA_TO_DEVICE, &areq_ctx->in_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy,
&mapped_nents))) {
if (cc_map_sg(dev, src, (update_data_len - *curr_buff_cnt),
DMA_TO_DEVICE, &areq_ctx->in_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy,
&mapped_nents)) {
goto unmap_curr_buff;
}
if (mapped_nents == 1 &&
@ -1624,13 +1614,13 @@ int cc_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx,
}
}
if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI) {
mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
/* add the src data to the sg_data */
cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src,
(update_data_len - *curr_buff_cnt), 0, true,
&areq_ctx->mlli_nents);
if (unlikely(cc_generate_mlli(dev, &sg_data, mlli_params)))
if (cc_generate_mlli(dev, &sg_data, mlli_params))
goto fail_unmap_din;
}
areq_ctx->buff_index = (areq_ctx->buff_index ^ swap_index);
@ -1666,7 +1656,7 @@ void cc_unmap_hash_request(struct device *dev, void *ctx,
areq_ctx->mlli_params.mlli_dma_addr);
}
if ((src) && likely(areq_ctx->in_nents)) {
if ((src) && areq_ctx->in_nents) {
dev_dbg(dev, "Unmapped sg src: virt=%pK dma=%pad len=0x%X\n",
sg_virt(src), &sg_dma_address(src), sg_dma_len(src));
dma_unmap_sg(dev, src,
@ -1707,7 +1697,7 @@ int cc_buffer_mgr_init(struct ssi_drvdata *drvdata)
LLI_ENTRY_BYTE_SIZE,
MLLI_TABLE_MIN_ALIGNMENT, 0);
if (unlikely(!buff_mgr_handle->mlli_buffs_pool))
if (!buff_mgr_handle->mlli_buffs_pool)
goto error;
return 0;

54
drivers/staging/ccree/ssi_cipher.c
View File

@ -76,30 +76,30 @@ static int validate_keys_sizes(struct ssi_ablkcipher_ctx *ctx_p, u32 size)
switch (size) {
case CC_AES_128_BIT_KEY_SIZE:
case CC_AES_192_BIT_KEY_SIZE:
if (likely(ctx_p->cipher_mode != DRV_CIPHER_XTS &&
ctx_p->cipher_mode != DRV_CIPHER_ESSIV &&
ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER))
if (ctx_p->cipher_mode != DRV_CIPHER_XTS &&
ctx_p->cipher_mode != DRV_CIPHER_ESSIV &&
ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER)
return 0;
break;
case CC_AES_256_BIT_KEY_SIZE:
return 0;
case (CC_AES_192_BIT_KEY_SIZE * 2):
case (CC_AES_256_BIT_KEY_SIZE * 2):
if (likely(ctx_p->cipher_mode == DRV_CIPHER_XTS ||
ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER))
if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)
return 0;
break;
default:
break;
}
case S_DIN_to_DES:
if (likely(size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE))
if (size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE)
return 0;
break;
#if SSI_CC_HAS_MULTI2
case S_DIN_to_MULTI2:
if (likely(size == CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE))
if (size == CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE)
return 0;
break;
#endif
@ -122,7 +122,7 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p,
return 0;
break;
case DRV_CIPHER_CBC_CTS:
if (likely(size >= AES_BLOCK_SIZE))
if (size >= AES_BLOCK_SIZE)
return 0;
break;
case DRV_CIPHER_OFB:
@ -132,7 +132,7 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p,
case DRV_CIPHER_CBC:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
if (likely(IS_ALIGNED(size, AES_BLOCK_SIZE)))
if (IS_ALIGNED(size, AES_BLOCK_SIZE))
return 0;
break;
default:
@ -140,14 +140,14 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p,
}
break;
case S_DIN_to_DES:
if (likely(IS_ALIGNED(size, DES_BLOCK_SIZE)))
if (IS_ALIGNED(size, DES_BLOCK_SIZE))
return 0;
break;
#if SSI_CC_HAS_MULTI2
case S_DIN_to_MULTI2:
switch (ctx_p->cipher_mode) {
case DRV_MULTI2_CBC:
if (likely(IS_ALIGNED(size, CC_MULTI2_BLOCK_SIZE)))
if (IS_ALIGNED(size, CC_MULTI2_BLOCK_SIZE))
return 0;
break;
case DRV_MULTI2_OFB:
@ -272,10 +272,10 @@ static int ssi_verify_3des_keys(const u8 *key, unsigned int keylen)
struct tdes_keys *tdes_key = (struct tdes_keys *)key;
/* verify key1 != key2 and key3 != key2*/
if (unlikely((memcmp((u8 *)tdes_key->key1, (u8 *)tdes_key->key2,
sizeof(tdes_key->key1)) == 0) ||
(memcmp((u8 *)tdes_key->key3, (u8 *)tdes_key->key2,
sizeof(tdes_key->key3)) == 0))) {
if ((memcmp((u8 *)tdes_key->key1, (u8 *)tdes_key->key2,
sizeof(tdes_key->key1)) == 0) ||
(memcmp((u8 *)tdes_key->key3, (u8 *)tdes_key->key2,
sizeof(tdes_key->key3)) == 0)) {
return -ENOEXEC;
}
@ -320,7 +320,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
keylen -= 1;
#endif /*SSI_CC_HAS_MULTI2*/
if (unlikely(validate_keys_sizes(ctx_p, keylen))) {
if (validate_keys_sizes(ctx_p, keylen)) {
dev_err(dev, "Unsupported key size %d.\n", keylen);
crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
@ -330,13 +330,13 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
/* setting HW key slots */
struct arm_hw_key_info *hki = (struct arm_hw_key_info *)key;
if (unlikely(ctx_p->flow_mode != S_DIN_to_AES)) {
if (ctx_p->flow_mode != S_DIN_to_AES) {
dev_err(dev, "HW key not supported for non-AES flows\n");
return -EINVAL;
}
ctx_p->hw.key1_slot = hw_key_to_cc_hw_key(hki->hw_key1);
if (unlikely(ctx_p->hw.key1_slot == END_OF_KEYS)) {
if (ctx_p->hw.key1_slot == END_OF_KEYS) {
dev_err(dev, "Unsupported hw key1 number (%d)\n",
hki->hw_key1);
return -EINVAL;
@ -345,14 +345,14 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) {
if (unlikely(hki->hw_key1 == hki->hw_key2)) {
if (hki->hw_key1 == hki->hw_key2) {
dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
hki->hw_key1, hki->hw_key2);
return -EINVAL;
}
ctx_p->hw.key2_slot =
hw_key_to_cc_hw_key(hki->hw_key2);
if (unlikely(ctx_p->hw.key2_slot == END_OF_KEYS)) {
if (ctx_p->hw.key2_slot == END_OF_KEYS) {
dev_err(dev, "Unsupported hw key2 number (%d)\n",
hki->hw_key2);
return -EINVAL;
@ -367,7 +367,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
// verify weak keys
if (ctx_p->flow_mode == S_DIN_to_DES) {
if (unlikely(!des_ekey(tmp, key)) &&
if (!des_ekey(tmp, key) &&
(crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_WEAK_KEY)) {
tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
dev_dbg(dev, "weak DES key");
@ -637,7 +637,7 @@ ssi_blkcipher_create_data_desc(
return;
}
/* Process */
if (likely(req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI)) {
if (req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI) {
dev_dbg(dev, " data params addr %pad length 0x%X\n",
&sg_dma_address(src), nbytes);
dev_dbg(dev, " data params addr %pad length 0x%X\n",
@ -760,7 +760,7 @@ static int ssi_blkcipher_process(
/* STAT_PHASE_0: Init and sanity checks */
/* TODO: check data length according to mode */
if (unlikely(validate_data_size(ctx_p, nbytes))) {
if (validate_data_size(ctx_p, nbytes)) {
dev_err(dev, "Unsupported data size %d.\n", nbytes);
crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN);
rc = -EINVAL;
@ -806,7 +806,7 @@ static int ssi_blkcipher_process(
rc = cc_map_blkcipher_request(ctx_p->drvdata, req_ctx, ivsize, nbytes,
req_ctx->iv, src, dst);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "map_request() failed\n");
goto exit_process;
}
@ -839,7 +839,7 @@ static int ssi_blkcipher_process(
rc = send_request(ctx_p->drvdata, &ssi_req, desc, seq_len,
(!areq) ? 0 : 1);
if (areq) {
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
/* Failed to send the request or request completed
* synchronously
*/
@ -1364,7 +1364,7 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata)
rc = crypto_register_alg(&t_alg->crypto_alg);
dev_dbg(dev, "%s alg registration rc = %x\n",
t_alg->crypto_alg.cra_driver_name, rc);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "%s alg registration failed\n",
t_alg->crypto_alg.cra_driver_name);
kfree(t_alg);

34
drivers/staging/ccree/ssi_driver.c
View File

@ -100,7 +100,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
/* read the interrupt status */
irr = cc_ioread(drvdata, CC_REG(HOST_IRR));
dev_dbg(dev, "Got IRR=0x%08X\n", irr);
if (unlikely(irr == 0)) { /* Probably shared interrupt line */
if (irr == 0) { /* Probably shared interrupt line */
dev_err(dev, "Got interrupt with empty IRR\n");
return IRQ_NONE;
}
@ -111,7 +111,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
drvdata->irq = irr;
/* Completion interrupt - most probable */
if (likely((irr & SSI_COMP_IRQ_MASK))) {
if ((irr & SSI_COMP_IRQ_MASK)) {
/* Mask AXI completion interrupt - will be unmasked in
* Deferred service handler
*/
@ -121,7 +121,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
}
#ifdef CC_SUPPORT_FIPS
/* TEE FIPS interrupt */
if (likely((irr & SSI_GPR0_IRQ_MASK))) {
if ((irr & SSI_GPR0_IRQ_MASK)) {
/* Mask interrupt - will be unmasked in Deferred service
* handler
*/
@ -131,7 +131,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
}
#endif
/* AXI error interrupt */
if (unlikely((irr & SSI_AXI_ERR_IRQ_MASK))) {
if ((irr & SSI_AXI_ERR_IRQ_MASK)) {
u32 axi_err;
/* Read the AXI error ID */
@ -142,7 +142,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
irr &= ~SSI_AXI_ERR_IRQ_MASK;
}
if (unlikely(irr)) {
if (irr) {
dev_dbg(dev, "IRR includes unknown cause bits (0x%08X)\n",
irr);
/* Just warning */
@ -295,78 +295,78 @@ static int init_cc_resources(struct platform_device *plat_dev)
DRV_MODULE_VERSION);
rc = init_cc_regs(new_drvdata, true);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "init_cc_regs failed\n");
goto post_clk_err;
}
#ifdef ENABLE_CC_SYSFS
rc = ssi_sysfs_init(&dev->kobj, new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "init_stat_db failed\n");
goto post_regs_err;
}
#endif
rc = ssi_fips_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "SSI_FIPS_INIT failed 0x%x\n", rc);
goto post_sysfs_err;
}
rc = ssi_sram_mgr_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_sram_mgr_init failed\n");
goto post_fips_init_err;
}
new_drvdata->mlli_sram_addr =
cc_sram_alloc(new_drvdata, MAX_MLLI_BUFF_SIZE);
if (unlikely(new_drvdata->mlli_sram_addr == NULL_SRAM_ADDR)) {
if (new_drvdata->mlli_sram_addr == NULL_SRAM_ADDR) {
dev_err(dev, "Failed to alloc MLLI Sram buffer\n");
rc = -ENOMEM;
goto post_sram_mgr_err;
}
rc = request_mgr_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "request_mgr_init failed\n");
goto post_sram_mgr_err;
}
rc = cc_buffer_mgr_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "buffer_mgr_init failed\n");
goto post_req_mgr_err;
}
rc = cc_pm_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_power_mgr_init failed\n");
goto post_buf_mgr_err;
}
rc = ssi_ivgen_init(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_ivgen_init failed\n");
goto post_power_mgr_err;
}
/* Allocate crypto algs */
rc = ssi_ablkcipher_alloc(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_ablkcipher_alloc failed\n");
goto post_ivgen_err;
}
/* hash must be allocated before aead since hash exports APIs */
rc = ssi_hash_alloc(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_hash_alloc failed\n");
goto post_cipher_err;
}
rc = ssi_aead_alloc(new_drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "ssi_aead_alloc failed\n");
goto post_hash_err;
}

103
drivers/staging/ccree/ssi_hash.c
View File

@ -116,9 +116,8 @@ static void ssi_hash_create_data_desc(
static void ssi_set_hash_endianity(u32 mode, struct cc_hw_desc *desc)
{
if (unlikely(mode == DRV_HASH_MD5 ||
mode == DRV_HASH_SHA384 ||
mode == DRV_HASH_SHA512)) {
if (mode == DRV_HASH_MD5 || mode == DRV_HASH_SHA384 ||
mode == DRV_HASH_SHA512) {
set_bytes_swap(desc, 1);
} else {
set_cipher_config0(desc, HASH_DIGEST_RESULT_LITTLE_ENDIAN);
@ -133,7 +132,7 @@ static int ssi_hash_map_result(struct device *dev,
dma_map_single(dev, (void *)state->digest_result_buff,
digestsize,
DMA_BIDIRECTIONAL);
if (unlikely(dma_mapping_error(dev, state->digest_result_dma_addr))) {
if (dma_mapping_error(dev, state->digest_result_dma_addr)) {
dev_err(dev, "Mapping digest result buffer %u B for DMA failed\n",
digestsize);
return -ENOMEM;
@ -219,8 +218,8 @@ static int ssi_hash_map_request(struct device *dev,
memcpy(state->digest_buff, ctx->digest_buff,
ctx->inter_digestsize);
#if (DX_DEV_SHA_MAX > 256)
if (unlikely(ctx->hash_mode == DRV_HASH_SHA512 ||
ctx->hash_mode == DRV_HASH_SHA384))
if (ctx->hash_mode == DRV_HASH_SHA512 ||
ctx->hash_mode == DRV_HASH_SHA384)
memcpy(state->digest_bytes_len,
digest_len_sha512_init, HASH_LEN_SIZE);
else
@ -254,7 +253,7 @@ static int ssi_hash_map_request(struct device *dev,
set_flow_mode(&desc, BYPASS);
rc = send_request(ctx->drvdata, &ssi_req, &desc, 1, 0);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
goto fail4;
}
@ -446,18 +445,17 @@ static int ssi_hash_digest(struct ahash_req_ctx *state,
dev_dbg(dev, "===== %s-digest (%d) ====\n", is_hmac ? "hmac" : "hash",
nbytes);
if (unlikely(ssi_hash_map_request(dev, state, ctx))) {
if (ssi_hash_map_request(dev, state, ctx)) {
dev_err(dev, "map_ahash_source() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state,
src, nbytes, 1))) {
if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
@ -494,7 +492,7 @@ static int ssi_hash_digest(struct ahash_req_ctx *state,
NS_BIT);
} else {
set_din_const(&desc[idx], 0, HASH_LEN_SIZE);
if (likely(nbytes))
if (nbytes)
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
else
set_cipher_do(&desc[idx], DO_PAD);
@ -576,7 +574,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
if (async_req) {
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, src, true);
ssi_hash_unmap_result(dev, state, digestsize, result);
@ -619,7 +617,7 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
rc = cc_map_hash_request_update(ctx->drvdata, state, src, nbytes,
block_size);
if (unlikely(rc)) {
if (rc) {
if (rc == 1) {
dev_dbg(dev, " data size not require HW update %x\n",
nbytes);
@ -677,7 +675,7 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
if (async_req) {
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, src, true);
}
@ -711,12 +709,11 @@ static int ssi_hash_finup(struct ahash_req_ctx *state,
dev_dbg(dev, "===== %s-finup (%d) ====\n", is_hmac ? "hmac" : "hash",
nbytes);
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state, src,
nbytes, 1))) {
if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
@ -809,7 +806,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
if (async_req) {
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, src, true);
ssi_hash_unmap_result(dev, state, digestsize, result);
@ -847,13 +844,12 @@ static int ssi_hash_final(struct ahash_req_ctx *state,
dev_dbg(dev, "===== %s-final (%d) ====\n", is_hmac ? "hmac" : "hash",
nbytes);
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state, src,
nbytes, 0))) {
if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 0)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
@ -955,7 +951,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
if (async_req) {
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, src, true);
ssi_hash_unmap_result(dev, state, digestsize, result);
@ -1019,8 +1015,7 @@ static int ssi_ahash_setkey(struct crypto_ahash *ahash, const u8 *key,
ctx->key_params.key_dma_addr = dma_map_single(
dev, (void *)key,
keylen, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev,
ctx->key_params.key_dma_addr))) {
if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
key, keylen);
return -ENOMEM;
@ -1105,7 +1100,7 @@ static int ssi_ahash_setkey(struct crypto_ahash *ahash, const u8 *key,
}
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
goto out;
}
@ -1201,7 +1196,7 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash,
ctx->key_params.key_dma_addr = dma_map_single(
dev, (void *)key,
keylen, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, ctx->key_params.key_dma_addr))) {
if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
key, keylen);
return -ENOMEM;
@ -1415,7 +1410,7 @@ static int ssi_mac_update(struct ahash_request *req)
rc = cc_map_hash_request_update(ctx->drvdata, state, req->src,
req->nbytes, block_size);
if (unlikely(rc)) {
if (rc) {
if (rc == 1) {
dev_dbg(dev, " data size not require HW update %x\n",
req->nbytes);
@ -1448,7 +1443,7 @@ static int ssi_mac_update(struct ahash_request *req)
ssi_req.user_arg = (void *)req;
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, req->src, true);
}
@ -1482,13 +1477,13 @@ static int ssi_mac_final(struct ahash_request *req)
dev_dbg(dev, "===== final xcbc reminder (%d) ====\n", rem_cnt);
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 0))) {
if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 0)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
@ -1562,7 +1557,7 @@ static int ssi_mac_final(struct ahash_request *req)
idx++;
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, req->src, true);
ssi_hash_unmap_result(dev, state, digestsize, req->result);
@ -1589,12 +1584,12 @@ static int ssi_mac_finup(struct ahash_request *req)
return ssi_mac_final(req);
}
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 1))) {
if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 1)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
@ -1635,7 +1630,7 @@ static int ssi_mac_finup(struct ahash_request *req)
idx++;
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, req->src, true);
ssi_hash_unmap_result(dev, state, digestsize, req->result);
@ -1658,17 +1653,17 @@ static int ssi_mac_digest(struct ahash_request *req)
dev_dbg(dev, "===== -digest mac (%d) ====\n", req->nbytes);
if (unlikely(ssi_hash_map_request(dev, state, ctx))) {
if (ssi_hash_map_request(dev, state, ctx)) {
dev_err(dev, "map_ahash_source() failed\n");
return -ENOMEM;
}
if (unlikely(ssi_hash_map_result(dev, state, digestsize))) {
if (ssi_hash_map_result(dev, state, digestsize)) {
dev_err(dev, "map_ahash_digest() failed\n");
return -ENOMEM;
}
if (unlikely(cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 1))) {
if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
req->nbytes, 1)) {
dev_err(dev, "map_ahash_request_final() failed\n");
return -ENOMEM;
}
@ -1709,7 +1704,7 @@ static int ssi_mac_digest(struct ahash_request *req)
idx++;
rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
if (unlikely(rc != -EINPROGRESS)) {
if (rc != -EINPROGRESS) {
dev_err(dev, "send_request() failed (rc=%d)\n", rc);
cc_unmap_hash_request(dev, state, req->src, true);
ssi_hash_unmap_result(dev, state, digestsize, req->result);
@ -2153,7 +2148,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(digest_len_init), larval_seq,
&larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(digest_len_init);
@ -2165,7 +2160,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(digest_len_sha512_init),
larval_seq, &larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(digest_len_sha512_init);
@ -2180,7 +2175,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(md5_init), larval_seq,
&larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(md5_init);
larval_seq_len = 0;
@ -2189,7 +2184,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(sha1_init), larval_seq,
&larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(sha1_init);
larval_seq_len = 0;
@ -2198,7 +2193,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(sha224_init), larval_seq,
&larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(sha224_init);
larval_seq_len = 0;
@ -2207,7 +2202,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
ARRAY_SIZE(sha256_init), larval_seq,
&larval_seq_len);
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc))
if (rc)
goto init_digest_const_err;
sram_buff_ofs += sizeof(sha256_init);
larval_seq_len = 0;
@ -2228,7 +2223,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
sram_buff_ofs += sizeof(u32);
}
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "send_request() failed (rc = %d)\n", rc);
goto init_digest_const_err;
}
@ -2246,7 +2241,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
sram_buff_ofs += sizeof(u32);
}
rc = send_request_init(drvdata, larval_seq, larval_seq_len);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "send_request() failed (rc = %d)\n", rc);
goto init_digest_const_err;
}
@ -2295,7 +2290,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
/*must be set before the alg registration as it is being used there*/
rc = ssi_hash_init_sram_digest_consts(drvdata);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "Init digest CONST failed (rc=%d)\n", rc);
goto fail;
}
@ -2316,7 +2311,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
t_alg->drvdata = drvdata;
rc = crypto_register_ahash(&t_alg->ahash_alg);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "%s alg registration failed\n",
driver_hash[alg].driver_name);
kfree(t_alg);
@ -2341,7 +2336,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
t_alg->drvdata = drvdata;
rc = crypto_register_ahash(&t_alg->ahash_alg);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "%s alg registration failed\n",
driver_hash[alg].driver_name);
kfree(t_alg);
@ -2480,7 +2475,7 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx,
unsigned int idx = *seq_size;
struct device *dev = drvdata_to_dev(ctx->drvdata);
if (likely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_DLLI)) {
if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_DLLI) {
hw_desc_init(&desc[idx]);
set_din_type(&desc[idx], DMA_DLLI,
sg_dma_address(areq_ctx->curr_sg),

2
drivers/staging/ccree/ssi_ivgen.c
View File

@ -143,7 +143,7 @@ int ssi_ivgen_init_sram_pool(struct ssi_drvdata *drvdata)
/* Generate initial pool */
rc = ssi_ivgen_generate_pool(ivgen_ctx, iv_seq, &iv_seq_len);
if (unlikely(rc))
if (rc)
return rc;
/* Fire-and-forget */

28
drivers/staging/ccree/ssi_request_mgr.c
View File

@ -115,7 +115,7 @@ int request_mgr_init(struct ssi_drvdata *drvdata)
#ifdef COMP_IN_WQ
dev_dbg(dev, "Initializing completion workqueue\n");
req_mgr_h->workq = create_singlethread_workqueue("arm_cc7x_wq");
if (unlikely(!req_mgr_h->workq)) {
if (!req_mgr_h->workq) {
dev_err(dev, "Failed creating work queue\n");
rc = -ENOMEM;
goto req_mgr_init_err;
@ -214,27 +214,25 @@ static int request_mgr_queues_status_check(
* be chaned during the poll because the spinlock_bh
* is held by the thread
*/
if (unlikely(((req_mgr_h->req_queue_head + 1) &
(MAX_REQUEST_QUEUE_SIZE - 1)) ==
req_mgr_h->req_queue_tail)) {
if (((req_mgr_h->req_queue_head + 1) & (MAX_REQUEST_QUEUE_SIZE - 1)) ==
req_mgr_h->req_queue_tail) {
dev_err(dev, "SW FIFO is full. req_queue_head=%d sw_fifo_len=%d\n",
req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE);
return -EBUSY;
}
if ((likely(req_mgr_h->q_free_slots >= total_seq_len)))
if ((req_mgr_h->q_free_slots >= total_seq_len))
return 0;
/* Wait for space in HW queue. Poll constant num of iterations. */
for (poll_queue = 0; poll_queue < SSI_MAX_POLL_ITER ; poll_queue++) {
req_mgr_h->q_free_slots =
cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT));
if (unlikely(req_mgr_h->q_free_slots <
req_mgr_h->min_free_hw_slots)) {
if (req_mgr_h->q_free_slots < req_mgr_h->min_free_hw_slots) {
req_mgr_h->min_free_hw_slots = req_mgr_h->q_free_slots;
}
if (likely(req_mgr_h->q_free_slots >= total_seq_len)) {
if (req_mgr_h->q_free_slots >= total_seq_len) {
/* If there is enough place return */
return 0;
}
@ -296,7 +294,7 @@ int send_request(
*/
rc = request_mgr_queues_status_check(drvdata, req_mgr_h,
max_required_seq_len);
if (likely(rc == 0))
if (rc == 0)
/* There is enough place in the queue */
break;
/* something wrong release the spinlock*/
@ -340,7 +338,7 @@ int send_request(
ssi_req->ivgen_dma_addr_len,
ssi_req->ivgen_size, iv_seq, &iv_seq_len);
if (unlikely(rc)) {
if (rc) {
dev_err(dev, "Failed to generate IV (rc=%d)\n", rc);
spin_unlock_bh(&req_mgr_h->hw_lock);
#if defined(CONFIG_PM)
@ -355,7 +353,7 @@ int send_request(
used_sw_slots = ((req_mgr_h->req_queue_head -
req_mgr_h->req_queue_tail) &
(MAX_REQUEST_QUEUE_SIZE - 1));
if (unlikely(used_sw_slots > req_mgr_h->max_used_sw_slots))
if (used_sw_slots > req_mgr_h->max_used_sw_slots)
req_mgr_h->max_used_sw_slots = used_sw_slots;
/* Enqueue request - must be locked with HW lock*/
@ -381,7 +379,7 @@ int send_request(
enqueue_seq(cc_base, desc, len);
enqueue_seq(cc_base, &req_mgr_h->compl_desc, (is_dout ? 0 : 1));
if (unlikely(req_mgr_h->q_free_slots < total_seq_len)) {
if (req_mgr_h->q_free_slots < total_seq_len) {
/* This situation should never occur. Maybe indicating problem
* with resuming power. Set the free slot count to 0 and hope
* for the best.
@ -429,7 +427,7 @@ int send_request_init(
*/
rc = request_mgr_queues_status_check(drvdata, req_mgr_h,
total_seq_len);
if (unlikely(rc))
if (rc)
return rc;
set_queue_last_ind(&desc[(len - 1)]);
@ -489,7 +487,7 @@ static void proc_completions(struct ssi_drvdata *drvdata)
request_mgr_handle->axi_completed--;
/* Dequeue request */
if (unlikely(*head == *tail)) {
if (*head == *tail) {
/* We are supposed to handle a completion but our
* queue is empty. This is not normal. Return and
* hope for the best.
@ -518,7 +516,7 @@ static void proc_completions(struct ssi_drvdata *drvdata)
}
#endif /* COMPLETION_DELAY */
if (likely(ssi_req->user_cb))
if (ssi_req->user_cb)
ssi_req->user_cb(dev, ssi_req->user_arg);
*tail = (*tail + 1) & (MAX_REQUEST_QUEUE_SIZE - 1);
dev_dbg(dev, "Dequeue request tail=%u\n", *tail);

4
drivers/staging/ccree/ssi_sram_mgr.c
View File

@ -75,12 +75,12 @@ ssi_sram_addr_t cc_sram_alloc(struct ssi_drvdata *drvdata, u32 size)
struct device *dev = drvdata_to_dev(drvdata);
ssi_sram_addr_t p;
if (unlikely((size & 0x3))) {
if ((size & 0x3)) {
dev_err(dev, "Requested buffer size (%u) is not multiple of 4",
size);
return NULL_SRAM_ADDR;
}
if (unlikely(size > (SSI_CC_SRAM_SIZE - smgr_ctx->sram_free_offset))) {
if (size > (SSI_CC_SRAM_SIZE - smgr_ctx->sram_free_offset)) {
dev_err(dev, "Not enough space to allocate %u B (at offset %llu)\n",
size, smgr_ctx->sram_free_offset);
return NULL_SRAM_ADDR;