@@ -23,7 +23,6 @@
#include "ccp-crypto.h"
-
static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
int ret)
{
@@ -38,11 +37,13 @@ static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
if (rctx->hash_rem) {
/* Save remaining data to buffer */
unsigned int offset = rctx->nbytes - rctx->hash_rem;
+
scatterwalk_map_and_copy(rctx->buf, rctx->src,
offset, rctx->hash_rem, 0);
rctx->buf_count = rctx->hash_rem;
- } else
+ } else {
rctx->buf_count = 0;
+ }
/* Update result area if supplied */
if (req->result)
@@ -202,7 +203,7 @@ static int ccp_aes_cmac_digest(struct ahash_request *req)
}
static int ccp_aes_cmac_setkey(struct crypto_ahash *tfm, const u8 *key,
- unsigned int key_len)
+ unsigned int key_len)
{
struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
struct ccp_crypto_ahash_alg *alg =
@@ -292,7 +293,8 @@ static int ccp_aes_cmac_cra_init(struct crypto_tfm *tfm)
crypto_ahash_set_reqsize(ahash, sizeof(struct ccp_aes_cmac_req_ctx));
cipher_tfm = crypto_alloc_cipher("aes", 0,
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(cipher_tfm)) {
pr_warn("could not load aes cipher driver\n");
return PTR_ERR(cipher_tfm);
@@ -354,7 +356,7 @@ int ccp_register_aes_cmac_algs(struct list_head *head)
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -21,7 +21,6 @@
#include "ccp-crypto.h"
-
struct ccp_aes_xts_def {
const char *name;
const char *drv_name;
@@ -216,7 +215,6 @@ static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm)
ctx->u.aes.tfm_ablkcipher = NULL;
}
-
static int ccp_register_aes_xts_alg(struct list_head *head,
const struct ccp_aes_xts_def *def)
{
@@ -255,7 +253,7 @@ static int ccp_register_aes_xts_alg(struct list_head *head,
ret = crypto_register_alg(alg);
if (ret) {
pr_err("%s ablkcipher algorithm registration error (%d)\n",
- alg->cra_name, ret);
+ alg->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -22,7 +22,6 @@
#include "ccp-crypto.h"
-
static int ccp_aes_complete(struct crypto_async_request *async_req, int ret)
{
struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
@@ -345,7 +344,7 @@ static int ccp_register_aes_alg(struct list_head *head,
ret = crypto_register_alg(alg);
if (ret) {
pr_err("%s ablkcipher algorithm registration error (%d)\n",
- alg->cra_name, ret);
+ alg->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -33,7 +33,6 @@ static unsigned int sha_disable;
module_param(sha_disable, uint, 0444);
MODULE_PARM_DESC(sha_disable, "Disable use of SHA - any non-zero value");
-
/* List heads for the supported algorithms */
static LIST_HEAD(hash_algs);
static LIST_HEAD(cipher_algs);
@@ -48,6 +47,7 @@ struct ccp_crypto_queue {
struct list_head *backlog;
unsigned int cmd_count;
};
+
#define CCP_CRYPTO_MAX_QLEN 100
static struct ccp_crypto_queue req_queue;
@@ -77,7 +77,6 @@ struct ccp_crypto_cpu {
int err;
};
-
static inline bool ccp_crypto_success(int err)
{
if (err && (err != -EINPROGRESS) && (err != -EBUSY))
@@ -143,7 +142,7 @@ static void ccp_crypto_complete(void *data, int err)
int ret;
if (err == -EINPROGRESS) {
- /* Only propogate the -EINPROGRESS if necessary */
+ /* Only propagate the -EINPROGRESS if necessary */
if (crypto_cmd->ret == -EBUSY) {
crypto_cmd->ret = -EINPROGRESS;
req->complete(req, -EINPROGRESS);
@@ -23,7 +23,6 @@
#include "ccp-crypto.h"
-
static int ccp_sha_complete(struct crypto_async_request *async_req, int ret)
{
struct ahash_request *req = ahash_request_cast(async_req);
@@ -37,11 +36,13 @@ static int ccp_sha_complete(struct crypto_async_request *async_req, int ret)
if (rctx->hash_rem) {
/* Save remaining data to buffer */
unsigned int offset = rctx->nbytes - rctx->hash_rem;
+
scatterwalk_map_and_copy(rctx->buf, rctx->src,
offset, rctx->hash_rem, 0);
rctx->buf_count = rctx->hash_rem;
- } else
+ } else {
rctx->buf_count = 0;
+ }
/* Update result area if supplied */
if (req->result)
@@ -227,8 +228,9 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
}
key_len = digest_size;
- } else
+ } else {
memcpy(ctx->u.sha.key, key, key_len);
+ }
for (i = 0; i < block_size; i++) {
ctx->u.sha.ipad[i] = ctx->u.sha.key[i] ^ 0x36;
@@ -355,7 +357,7 @@ static int ccp_register_hmac_alg(struct list_head *head,
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -410,7 +412,7 @@ static int ccp_register_sha_alg(struct list_head *head,
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -13,7 +13,6 @@
#ifndef __CCP_CRYPTO_H__
#define __CCP_CRYPTO_H__
-
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/pci.h>
@@ -25,7 +24,6 @@
#include <crypto/hash.h>
#include <crypto/sha.h>
-
#define CCP_CRA_PRIORITY 300
struct ccp_crypto_ablkcipher_alg {
@@ -68,7 +66,6 @@ static inline struct ccp_crypto_ahash_alg *
return container_of(ahash_alg, struct ccp_crypto_ahash_alg, alg);
}
-
/***** AES related defines *****/
struct ccp_aes_ctx {
/* Fallback cipher for XTS with unsupported unit sizes */
@@ -37,7 +37,6 @@ struct ccp_tasklet_data {
struct ccp_cmd *cmd;
};
-
static struct ccp_device *ccp_dev;
static inline struct ccp_device *ccp_get_device(void)
{
@@ -297,10 +296,8 @@ struct ccp_device *ccp_alloc_struct(struct device *dev)
struct ccp_device *ccp;
ccp = kzalloc(sizeof(*ccp), GFP_KERNEL);
- if (ccp == NULL) {
- dev_err(dev, "unable to allocate device struct\n");
+ if (!ccp)
return NULL;
- }
ccp->dev = dev;
INIT_LIST_HEAD(&ccp->cmd);
@@ -21,7 +21,7 @@
#include <linux/wait.h>
#include <linux/dmapool.h>
#include <linux/hw_random.h>
-
+#include <linux/bitops.h>
#define MAX_DMAPOOL_NAME_LEN 32
@@ -33,7 +33,6 @@
#define CACHE_NONE 0x00
#define CACHE_WB_NO_ALLOC 0xb7
-
/****** Register Mappings ******/
#define Q_MASK_REG 0x000
#define TRNG_OUT_REG 0x00c
@@ -54,8 +53,8 @@
#define CMD_Q_CACHE_BASE 0x228
#define CMD_Q_CACHE_INC 0x20
-#define CMD_Q_ERROR(__qs) ((__qs) & 0x0000003f);
-#define CMD_Q_DEPTH(__qs) (((__qs) >> 12) & 0x0000000f);
+#define CMD_Q_ERROR(__qs) ((__qs) & 0x0000003f)
+#define CMD_Q_DEPTH(__qs) (((__qs) >> 12) & 0x0000000f)
/****** REQ0 Related Values ******/
#define REQ0_WAIT_FOR_WRITE 0x00000004
@@ -103,7 +102,6 @@
/****** REQ6 Related Values ******/
#define REQ6_MEMTYPE_SHIFT 16
-
/****** Key Storage Block ******/
#define KSB_START 77
#define KSB_END 127
@@ -114,7 +112,7 @@
#define CCP_JOBID_MASK 0x0000003f
#define CCP_DMAPOOL_MAX_SIZE 64
-#define CCP_DMAPOOL_ALIGN (1 << 5)
+#define CCP_DMAPOOL_ALIGN BIT(5)
#define CCP_REVERSE_BUF_SIZE 64
@@ -142,7 +140,6 @@
#define CCP_ECC_RESULT_OFFSET 60
#define CCP_ECC_RESULT_SUCCESS 0x0001
-
struct ccp_device;
struct ccp_cmd;
@@ -261,7 +258,6 @@ struct ccp_device {
unsigned int axcache;
};
-
int ccp_pci_init(void);
void ccp_pci_exit(void);
@@ -27,7 +27,6 @@
#include "ccp-dev.h"
-
enum ccp_memtype {
CCP_MEMTYPE_SYSTEM = 0,
CCP_MEMTYPE_KSB,
@@ -515,7 +514,6 @@ static int ccp_init_sg_workarea(struct ccp_sg_workarea *wa, struct device *dev,
if (!wa->dma_count)
return -ENOMEM;
-
return 0;
}
@@ -763,8 +761,9 @@ static void ccp_prepare_data(struct ccp_data *src, struct ccp_data *dst,
sg_dst_len = sg_dma_len(dst->sg_wa.sg) - dst->sg_wa.sg_used;
sg_dst_len = min_t(u64, src->sg_wa.bytes_left, sg_dst_len);
op_len = min(sg_src_len, sg_dst_len);
- } else
+ } else {
op_len = sg_src_len;
+ }
/* The data operation length will be at least block_size in length
* or the smaller of available sg room remaining for the source or
@@ -1131,9 +1130,9 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
if (ret)
goto e_ctx;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, aes->dst, aes->src_len,
AES_BLOCK_SIZE, DMA_FROM_DEVICE);
if (ret)
@@ -1304,9 +1303,9 @@ static int ccp_run_xts_aes_cmd(struct ccp_cmd_queue *cmd_q,
if (ret)
goto e_ctx;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, xts->dst, xts->src_len,
unit_size, DMA_FROM_DEVICE);
if (ret)
@@ -1451,8 +1450,9 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
goto e_ctx;
}
memcpy(ctx.address, init, CCP_SHA_CTXSIZE);
- } else
+ } else {
ccp_set_dm_area(&ctx, 0, sha->ctx, 0, sha->ctx_len);
+ }
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
@@ -1732,9 +1732,9 @@ static int ccp_run_passthru_cmd(struct ccp_cmd_queue *cmd_q,
if (ret)
goto e_mask;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, pt->dst, pt->src_len,
CCP_PASSTHRU_MASKSIZE, DMA_FROM_DEVICE);
if (ret)
@@ -1974,7 +1974,7 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
src.address += CCP_ECC_OPERAND_SIZE;
/* Set the first point Z coordianate to 1 */
- *(src.address) = 0x01;
+ *src.address = 0x01;
src.address += CCP_ECC_OPERAND_SIZE;
if (ecc->function == CCP_ECC_FUNCTION_PADD_384BIT) {
@@ -1989,7 +1989,7 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
src.address += CCP_ECC_OPERAND_SIZE;
/* Set the second point Z coordianate to 1 */
- *(src.address) = 0x01;
+ *src.address = 0x01;
src.address += CCP_ECC_OPERAND_SIZE;
} else {
/* Copy the Domain "a" parameter */
@@ -204,7 +204,7 @@ static int ccp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ret = -EIO;
ccp->io_map = pci_iomap(pdev, bar, 0);
- if (ccp->io_map == NULL) {
+ if (!ccp->io_map) {
dev_err(dev, "pci_iomap failed\n");
goto e_device;
}
@@ -26,7 +26,6 @@
#include "ccp-dev.h"
-
static int ccp_get_irq(struct ccp_device *ccp)
{
struct device *dev = ccp->dev;
Changes to address warnings and errors reported by the checkpatch script. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> --- drivers/crypto/ccp/ccp-crypto-aes-cmac.c | 12 +++++++----- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 4 +--- drivers/crypto/ccp/ccp-crypto-aes.c | 3 +-- drivers/crypto/ccp/ccp-crypto-main.c | 5 ++--- drivers/crypto/ccp/ccp-crypto-sha.c | 12 +++++++----- drivers/crypto/ccp/ccp-crypto.h | 3 --- drivers/crypto/ccp/ccp-dev.c | 5 +---- drivers/crypto/ccp/ccp-dev.h | 12 ++++-------- drivers/crypto/ccp/ccp-ops.c | 24 ++++++++++++------------ drivers/crypto/ccp/ccp-pci.c | 2 +- drivers/crypto/ccp/ccp-platform.c | 1 - 11 files changed, 36 insertions(+), 47 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html