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Message-Id: <1494921952-8384-1-git-send-email-pushkar.iit@gmail.com>
Date: Tue, 16 May 2017 13:35:52 +0530
From: Pushkar Jambhlekar <pushkar.iit@...il.com>
To: Gilad Ben-Yossef <gilad@...yossef.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-crypto@...r.kernel.org,
driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org,
Pushkar Jambhlekar <pushkar.iit@...il.com>
Subject: [PATCH] drivers/staging/ccree: Fixing coding guideline errors
Fixing coding guideline errors reported by 'checkpatch.pl'
Signed-off-by: Pushkar Jambhlekar <pushkar.iit@...il.com>
---
drivers/staging/ccree/ssi_cipher.c | 158 +++++++++++++++++++------------------
1 file changed, 80 insertions(+), 78 deletions(-)
diff --git a/drivers/staging/ccree/ssi_cipher.c b/drivers/staging/ccree/ssi_cipher.c
index d245a2b..6eb0f0b 100644
--- a/drivers/staging/ccree/ssi_cipher.c
+++ b/drivers/staging/ccree/ssi_cipher.c
@@ -68,11 +68,11 @@ struct ssi_ablkcipher_ctx {
static void ssi_ablkcipher_complete(struct device *dev, void *ssi_req, void __iomem *cc_base);
-
-static int validate_keys_sizes(struct ssi_ablkcipher_ctx *ctx_p, u32 size) {
- switch (ctx_p->flow_mode){
+static int validate_keys_sizes(struct ssi_ablkcipher_ctx *ctx_p, u32 size)
+{
+ switch (ctx_p->flow_mode) {
case S_DIN_to_AES:
- switch (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) &&
@@ -110,11 +110,11 @@ static int validate_keys_sizes(struct ssi_ablkcipher_ctx *ctx_p, u32 size) {
return -EINVAL;
}
-
-static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int size) {
- switch (ctx_p->flow_mode){
+static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int size)
+{
+ switch (ctx_p->flow_mode) {
case S_DIN_to_AES:
- switch (ctx_p->cipher_mode){
+ switch (ctx_p->cipher_mode) {
case DRV_CIPHER_XTS:
if ((size >= SSI_MIN_AES_XTS_SIZE) &&
(size <= SSI_MAX_AES_XTS_SIZE) &&
@@ -260,46 +260,46 @@ static void ssi_blkcipher_exit(struct crypto_tfm *tfm)
}
-typedef struct tdes_keys{
- u8 key1[DES_KEY_SIZE];
- u8 key2[DES_KEY_SIZE];
- u8 key3[DES_KEY_SIZE];
-}tdes_keys_t;
+typedef struct tdes_keys {
+ u8 key1[DES_KEY_SIZE];
+ u8 key2[DES_KEY_SIZE];
+ u8 key3[DES_KEY_SIZE];
+} tdes_keys_t;
static const u8 zero_buff[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
/* The function verifies that tdes keys are not weak.*/
static int ssi_fips_verify_3des_keys(const u8 *key, unsigned int keylen)
{
#ifdef CCREE_FIPS_SUPPORT
- tdes_keys_t *tdes_key = (tdes_keys_t*)key;
+ tdes_keys_t *tdes_key = (tdes_keys_t *)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) )) {
- return -ENOEXEC;
- }
+ 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))) {
+ return -ENOEXEC;
+ }
#endif /* CCREE_FIPS_SUPPORT */
- return 0;
+ return 0;
}
/* The function verifies that xts keys are not weak.*/
static int ssi_fips_verify_xts_keys(const u8 *key, unsigned int keylen)
{
#ifdef CCREE_FIPS_SUPPORT
- /* Weak key is define as key that its first half (128/256 lsb) equals its second half (128/256 msb) */
- int singleKeySize = keylen >> 1;
+ /* Weak key is define as key that its first half (128/256 lsb) equals its second half (128/256 msb) */
+ int singleKeySize = keylen >> 1;
if (unlikely(memcmp(key, &key[singleKeySize], singleKeySize) == 0)) {
return -ENOEXEC;
}
#endif /* CCREE_FIPS_SUPPORT */
- return 0;
+ return 0;
}
static enum cc_hw_crypto_key hw_key_to_cc_hw_key(int slot_num)
@@ -325,6 +325,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
struct device *dev = &ctx_p->drvdata->plat_dev->dev;
u32 tmp[DES_EXPKEY_WORDS];
unsigned int max_key_buf_size = get_max_keysize(tfm);
+
DECL_CYCLE_COUNT_RESOURCES;
SSI_LOG_DEBUG("Setting key in context @%p for %s. keylen=%u\n",
@@ -341,11 +342,11 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
#if SSI_CC_HAS_MULTI2
/*last byte of key buffer is round number and should not be a part of key size*/
if (ctx_p->flow_mode == S_DIN_to_MULTI2) {
- keylen -=1;
+ keylen -= 1;
}
#endif /*SSI_CC_HAS_MULTI2*/
- if (unlikely(validate_keys_sizes(ctx_p,keylen) != 0)) {
+ if (unlikely(validate_keys_sizes(ctx_p, keylen) != 0)) {
SSI_LOG_ERR("Unsupported key size %d.\n", keylen);
crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
@@ -353,7 +354,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
if (ssi_is_hw_key(tfm)) {
/* setting HW key slots */
- struct arm_hw_key_info *hki = (struct arm_hw_key_info*)key;
+ struct arm_hw_key_info *hki = (struct arm_hw_key_info *)key;
if (unlikely(ctx_p->flow_mode != S_DIN_to_AES)) {
SSI_LOG_ERR("HW key not supported for non-AES flows\n");
@@ -437,6 +438,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
/* sha256 for key2 - use sw implementation */
int key_len = keylen >> 1;
int err;
+
SHASH_DESC_ON_STACK(desc, ctx_p->shash_tfm);
desc->tfm = ctx_p->shash_tfm;
@@ -449,7 +451,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
}
dma_sync_single_for_device(dev, ctx_p->user.key_dma_addr,
max_key_buf_size, DMA_TO_DEVICE);
- SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx_p->user.key_dma_addr ,max_key_buf_size);
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx_p->user.key_dma_addr, max_key_buf_size);
ctx_p->keylen = keylen;
END_CYCLE_COUNT(STAT_OP_TYPE_SETKEY, STAT_PHASE_1);
@@ -497,7 +499,7 @@ ssi_blkcipher_create_setup_desc(
HW_DESC_SET_FLOW_MODE(&desc[*seq_size], flow_mode);
HW_DESC_SET_CIPHER_MODE(&desc[*seq_size], cipher_mode);
if ((cipher_mode == DRV_CIPHER_CTR) ||
- (cipher_mode == DRV_CIPHER_OFB) ) {
+ (cipher_mode == DRV_CIPHER_OFB)) {
HW_DESC_SET_SETUP_MODE(&desc[*seq_size],
SETUP_LOAD_STATE1);
} else {
@@ -620,7 +622,7 @@ static inline void ssi_blkcipher_create_multi2_setup_desc(
HW_DESC_SET_FLOW_MODE(&desc[*seq_size], ctx_p->flow_mode);
HW_DESC_SET_CIPHER_MODE(&desc[*seq_size], ctx_p->cipher_mode);
HW_DESC_SET_CIPHER_CONFIG0(&desc[*seq_size], direction);
- HW_DESC_SET_SETUP_MODE(&desc[*seq_size], SETUP_LOAD_STATE0 );
+ HW_DESC_SET_SETUP_MODE(&desc[*seq_size], SETUP_LOAD_STATE0);
(*seq_size)++;
@@ -664,15 +666,15 @@ ssi_blkcipher_create_data_desc(
break;
#endif /*SSI_CC_HAS_MULTI2*/
default:
- SSI_LOG_ERR("invalid flow mode, flow_mode = %d \n", flow_mode);
+ SSI_LOG_ERR("invalid flow mode, flow_mode = %d\n", flow_mode);
return;
}
/* Process */
- if (likely(req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI)){
- SSI_LOG_DEBUG(" data params addr 0x%llX length 0x%X \n",
+ if (likely(req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI)) {
+ SSI_LOG_DEBUG(" data params addr 0x%llX length 0x%X\n",
(unsigned long long)sg_dma_address(src),
nbytes);
- SSI_LOG_DEBUG(" data params addr 0x%llX length 0x%X \n",
+ SSI_LOG_DEBUG(" data params addr 0x%llX length 0x%X\n",
(unsigned long long)sg_dma_address(dst),
nbytes);
HW_DESC_INIT(&desc[*seq_size]);
@@ -682,7 +684,7 @@ ssi_blkcipher_create_data_desc(
HW_DESC_SET_DOUT_DLLI(&desc[*seq_size],
sg_dma_address(dst),
nbytes,
- NS_BIT, (areq == NULL)? 0:1);
+ NS_BIT, (areq == NULL) ? 0:1);
if (areq != NULL) {
HW_DESC_SET_QUEUE_LAST_IND(&desc[*seq_size]);
}
@@ -690,8 +692,7 @@ ssi_blkcipher_create_data_desc(
(*seq_size)++;
} else {
/* bypass */
- SSI_LOG_DEBUG(" bypass params addr 0x%llX "
- "length 0x%X addr 0x%08X\n",
+ SSI_LOG_DEBUG(" bypass params addr 0x%llX length 0x%X addr 0x%08X\n",
(unsigned long long)req_ctx->mlli_params.mlli_dma_addr,
req_ctx->mlli_params.mlli_len,
(unsigned int)ctx_p->drvdata->mlli_sram_addr);
@@ -711,17 +712,15 @@ ssi_blkcipher_create_data_desc(
ctx_p->drvdata->mlli_sram_addr,
req_ctx->in_mlli_nents, NS_BIT);
if (req_ctx->out_nents == 0) {
- SSI_LOG_DEBUG(" din/dout params addr 0x%08X "
- "addr 0x%08X\n",
+ SSI_LOG_DEBUG(" din/dout params addr 0x%08X addr 0x%08X\n",
(unsigned int)ctx_p->drvdata->mlli_sram_addr,
(unsigned int)ctx_p->drvdata->mlli_sram_addr);
HW_DESC_SET_DOUT_MLLI(&desc[*seq_size],
ctx_p->drvdata->mlli_sram_addr,
req_ctx->in_mlli_nents,
- NS_BIT,(areq == NULL)? 0:1);
+ NS_BIT, (areq == NULL) ? 0:1);
} else {
- SSI_LOG_DEBUG(" din/dout params "
- "addr 0x%08X addr 0x%08X\n",
+ SSI_LOG_DEBUG(" din/dout params addr 0x%08X addr 0x%08X\n",
(unsigned int)ctx_p->drvdata->mlli_sram_addr,
(unsigned int)ctx_p->drvdata->mlli_sram_addr +
(u32)LLI_ENTRY_BYTE_SIZE *
@@ -730,7 +729,7 @@ ssi_blkcipher_create_data_desc(
(ctx_p->drvdata->mlli_sram_addr +
LLI_ENTRY_BYTE_SIZE *
req_ctx->in_mlli_nents),
- req_ctx->out_mlli_nents, NS_BIT,(areq == NULL)? 0:1);
+ req_ctx->out_mlli_nents, NS_BIT, (areq == NULL) ? 0:1);
}
if (areq != NULL) {
HW_DESC_SET_QUEUE_LAST_IND(&desc[*seq_size]);
@@ -741,15 +740,16 @@ ssi_blkcipher_create_data_desc(
}
static int ssi_blkcipher_complete(struct device *dev,
- struct ssi_ablkcipher_ctx *ctx_p,
- struct blkcipher_req_ctx *req_ctx,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int ivsize,
- void *areq,
- void __iomem *cc_base)
+ struct ssi_ablkcipher_ctx *ctx_p,
+ struct blkcipher_req_ctx *req_ctx,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int ivsize,
+ void *areq,
+ void __iomem *cc_base)
{
int completion_error = 0;
u32 inflight_counter;
+
DECL_CYCLE_COUNT_RESOURCES;
START_CYCLE_COUNT();
@@ -760,10 +760,10 @@ static int ssi_blkcipher_complete(struct device *dev,
/*Set the inflight couter value to local variable*/
inflight_counter = ctx_p->drvdata->inflight_counter;
/*Decrease the inflight counter*/
- if(ctx_p->flow_mode == BYPASS && ctx_p->drvdata->inflight_counter > 0)
+ if (ctx_p->flow_mode == BYPASS && ctx_p->drvdata->inflight_counter > 0)
ctx_p->drvdata->inflight_counter--;
- if(areq){
+ if (areq) {
ablkcipher_request_complete(areq, completion_error);
return 0;
}
@@ -784,11 +784,12 @@ static int ssi_blkcipher_process(
struct device *dev = &ctx_p->drvdata->plat_dev->dev;
struct cc_hw_desc desc[MAX_ABLKCIPHER_SEQ_LEN];
struct ssi_crypto_req ssi_req = {};
- int rc, seq_len = 0,cts_restore_flag = 0;
+ int rc, seq_len = 0, cts_restore_flag = 0;
+
DECL_CYCLE_COUNT_RESOURCES;
SSI_LOG_DEBUG("%s areq=%p info=%p nbytes=%d\n",
- ((direction==DRV_CRYPTO_DIRECTION_ENCRYPT)?"Encrypt":"Decrypt"),
+ ((direction == DRV_CRYPTO_DIRECTION_ENCRYPT)?"Encrypt":"Decrypt"),
areq, info, nbytes);
CHECK_AND_RETURN_UPON_FIPS_ERROR();
@@ -805,8 +806,8 @@ static int ssi_blkcipher_process(
/* No data to process is valid */
return 0;
}
- /*For CTS in case of data size aligned to 16 use CBC mode*/
- if (((nbytes % AES_BLOCK_SIZE) == 0) && (ctx_p->cipher_mode == DRV_CIPHER_CBC_CTS)){
+ /*For CTS in case of data size aligned to 16 use CBC mode*/
+ if (((nbytes % AES_BLOCK_SIZE) == 0) && (ctx_p->cipher_mode == DRV_CIPHER_CBC_CTS)) {
ctx_p->cipher_mode = DRV_CIPHER_CBC;
cts_restore_flag = 1;
@@ -879,8 +880,8 @@ static int ssi_blkcipher_process(
/* STAT_PHASE_3: Lock HW and push sequence */
START_CYCLE_COUNT();
- rc = send_request(ctx_p->drvdata, &ssi_req, desc, seq_len, (areq == NULL)? 0:1);
- if(areq != NULL) {
+ rc = send_request(ctx_p->drvdata, &ssi_req, desc, seq_len, (areq == NULL) ? 0:1);
+ if (areq != NULL) {
if (unlikely(rc != -EINPROGRESS)) {
/* Failed to send the request or request completed synchronously */
ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst);
@@ -951,8 +952,8 @@ static void ssi_sblkcipher_exit(struct crypto_tfm *tfm)
#ifdef SYNC_ALGS
static int ssi_sblkcipher_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+ 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);
@@ -967,8 +968,8 @@ static int ssi_sblkcipher_encrypt(struct blkcipher_desc *desc,
}
static int ssi_sblkcipher_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+ 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);
@@ -1048,7 +1049,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_XTS,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "xts(aes)",
@@ -1206,7 +1207,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_ECB,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "cbc(aes)",
@@ -1223,7 +1224,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_CBC,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "ofb(aes)",
@@ -1240,7 +1241,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_OFB,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
#if SSI_CC_HAS_AES_CTS
{
@@ -1258,7 +1259,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_CBC_CTS,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
#endif
{
@@ -1276,7 +1277,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_CTR,
.flow_mode = S_DIN_to_AES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "cbc(des3_ede)",
@@ -1293,7 +1294,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_CBC,
.flow_mode = S_DIN_to_DES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "ecb(des3_ede)",
@@ -1310,7 +1311,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_ECB,
.flow_mode = S_DIN_to_DES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "cbc(des)",
@@ -1327,7 +1328,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_CBC,
.flow_mode = S_DIN_to_DES,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "ecb(des)",
@@ -1344,7 +1345,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_CIPHER_ECB,
.flow_mode = S_DIN_to_DES,
- .synchronous = false,
+ .synchronous = false,
},
#if SSI_CC_HAS_MULTI2
{
@@ -1362,7 +1363,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_MULTI2_CBC,
.flow_mode = S_DIN_to_MULTI2,
- .synchronous = false,
+ .synchronous = false,
},
{
.name = "ofb(multi2)",
@@ -1379,7 +1380,7 @@ static struct ssi_alg_template blkcipher_algs[] = {
},
.cipher_mode = DRV_MULTI2_OFB,
.flow_mode = S_DIN_to_MULTI2,
- .synchronous = false,
+ .synchronous = false,
},
#endif /*SSI_CC_HAS_MULTI2*/
};
@@ -1407,10 +1408,10 @@ 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_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;
@@ -1432,6 +1433,7 @@ int ssi_ablkcipher_free(struct ssi_drvdata *drvdata)
struct ssi_blkcipher_handle *blkcipher_handle =
drvdata->blkcipher_handle;
struct device *dev;
+
dev = &drvdata->plat_dev->dev;
if (blkcipher_handle != NULL) {
--
2.7.4
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