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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-23 06:12:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-23 06:12:39 -0700
commitc130423620331a104492bbbcc49f25125e26a21a (patch)
treea49e8e0bdf07a723d4e73fb6e0cca568b919d4db /drivers/crypto
parent988faa7312b490c8a9e7fcdca434c6bf3f3af97b (diff)
parentdfe97ad30e8c038261663a18b9e04b8b5bc07bea (diff)
downloadlinux-c130423620331a104492bbbcc49f25125e26a21a.tar.gz
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: "This fixes the following issues: API: - Fix kzalloc error path crash in ecryptfs added by skcipher conversion. Note the subject of the commit is screwed up and the correct subject is actually in the body. Drivers: - A number of fixes to the marvell cesa hashing code. - Remove bogus nested irqsave that clobbers the saved flags in ccp" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: marvell/cesa - forward devm_ioremap_resource() error code crypto: marvell/cesa - initialize hash states crypto: marvell/cesa - fix memory leak crypto: ccp - fix lock acquisition code eCryptfs: Use skcipher and shash
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/ccp/ccp-dev.c6
-rw-r--r--drivers/crypto/marvell/cesa.c2
-rw-r--r--drivers/crypto/marvell/cesa.h3
-rw-r--r--drivers/crypto/marvell/hash.c106
4 files changed, 44 insertions, 73 deletions
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c
index 336e5b780fcb..4dbc18727235 100644
--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -53,7 +53,7 @@ static DEFINE_RWLOCK(ccp_unit_lock);
static LIST_HEAD(ccp_units);
/* Round-robin counter */
-static DEFINE_RWLOCK(ccp_rr_lock);
+static DEFINE_SPINLOCK(ccp_rr_lock);
static struct ccp_device *ccp_rr;
/* Ever-increasing value to produce unique unit numbers */
@@ -128,14 +128,14 @@ static struct ccp_device *ccp_get_device(void)
*/
read_lock_irqsave(&ccp_unit_lock, flags);
if (!list_empty(&ccp_units)) {
- write_lock_irqsave(&ccp_rr_lock, flags);
+ spin_lock(&ccp_rr_lock);
dp = ccp_rr;
if (list_is_last(&ccp_rr->entry, &ccp_units))
ccp_rr = list_first_entry(&ccp_units, struct ccp_device,
entry);
else
ccp_rr = list_next_entry(ccp_rr, entry);
- write_unlock_irqrestore(&ccp_rr_lock, flags);
+ spin_unlock(&ccp_rr_lock);
}
read_unlock_irqrestore(&ccp_unit_lock, flags);
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index c0656e7f37b5..80239ae69527 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -420,7 +420,7 @@ static int mv_cesa_probe(struct platform_device *pdev)
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
cesa->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(cesa->regs))
- return -ENOMEM;
+ return PTR_ERR(cesa->regs);
ret = mv_cesa_dev_dma_init(cesa);
if (ret)
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index bd985e72520b..74071e45ada0 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -588,6 +588,7 @@ struct mv_cesa_ahash_dma_req {
struct mv_cesa_tdma_req base;
u8 *padding;
dma_addr_t padding_dma;
+ u8 *cache;
dma_addr_t cache_dma;
};
@@ -609,7 +610,7 @@ struct mv_cesa_ahash_req {
struct mv_cesa_ahash_std_req std;
} req;
struct mv_cesa_op_ctx op_tmpl;
- u8 *cache;
+ u8 cache[CESA_MAX_HASH_BLOCK_SIZE];
unsigned int cache_ptr;
u64 len;
int src_nents;
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index 683cca9ac3c4..7ca2e0f9dc2e 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -45,69 +45,25 @@ mv_cesa_ahash_req_iter_next_op(struct mv_cesa_ahash_dma_iter *iter)
return mv_cesa_req_dma_iter_next_op(&iter->base);
}
-static inline int mv_cesa_ahash_dma_alloc_cache(struct mv_cesa_ahash_req *creq,
- gfp_t flags)
+static inline int
+mv_cesa_ahash_dma_alloc_cache(struct mv_cesa_ahash_dma_req *req, gfp_t flags)
{
- struct mv_cesa_ahash_dma_req *dreq = &creq->req.dma;
-
- creq->cache = dma_pool_alloc(cesa_dev->dma->cache_pool, flags,
- &dreq->cache_dma);
- if (!creq->cache)
- return -ENOMEM;
-
- return 0;
-}
-
-static inline int mv_cesa_ahash_std_alloc_cache(struct mv_cesa_ahash_req *creq,
- gfp_t flags)
-{
- creq->cache = kzalloc(CESA_MAX_HASH_BLOCK_SIZE, flags);
- if (!creq->cache)
+ req->cache = dma_pool_alloc(cesa_dev->dma->cache_pool, flags,
+ &req->cache_dma);
+ if (!req->cache)
return -ENOMEM;
return 0;
}
-static int mv_cesa_ahash_alloc_cache(struct ahash_request *req)
-{
- struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
- int ret;
-
- if (creq->cache)
- return 0;
-
- if (creq->req.base.type == CESA_DMA_REQ)
- ret = mv_cesa_ahash_dma_alloc_cache(creq, flags);
- else
- ret = mv_cesa_ahash_std_alloc_cache(creq, flags);
-
- return ret;
-}
-
-static inline void mv_cesa_ahash_dma_free_cache(struct mv_cesa_ahash_req *creq)
-{
- dma_pool_free(cesa_dev->dma->cache_pool, creq->cache,
- creq->req.dma.cache_dma);
-}
-
-static inline void mv_cesa_ahash_std_free_cache(struct mv_cesa_ahash_req *creq)
-{
- kfree(creq->cache);
-}
-
-static void mv_cesa_ahash_free_cache(struct mv_cesa_ahash_req *creq)
+static inline void
+mv_cesa_ahash_dma_free_cache(struct mv_cesa_ahash_dma_req *req)
{
- if (!creq->cache)
+ if (!req->cache)
return;
- if (creq->req.base.type == CESA_DMA_REQ)
- mv_cesa_ahash_dma_free_cache(creq);
- else
- mv_cesa_ahash_std_free_cache(creq);
-
- creq->cache = NULL;
+ dma_pool_free(cesa_dev->dma->cache_pool, req->cache,
+ req->cache_dma);
}
static int mv_cesa_ahash_dma_alloc_padding(struct mv_cesa_ahash_dma_req *req,
@@ -146,6 +102,7 @@ static inline void mv_cesa_ahash_dma_cleanup(struct ahash_request *req)
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, DMA_TO_DEVICE);
+ mv_cesa_ahash_dma_free_cache(&creq->req.dma);
mv_cesa_dma_cleanup(&creq->req.dma.base);
}
@@ -161,8 +118,6 @@ static void mv_cesa_ahash_last_cleanup(struct ahash_request *req)
{
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
- mv_cesa_ahash_free_cache(creq);
-
if (creq->req.base.type == CESA_DMA_REQ)
mv_cesa_ahash_dma_last_cleanup(req);
}
@@ -445,14 +400,6 @@ static inline int mv_cesa_ahash_cra_init(struct crypto_tfm *tfm)
static int mv_cesa_ahash_cache_req(struct ahash_request *req, bool *cached)
{
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
- int ret;
-
- if (((creq->cache_ptr + req->nbytes) & CESA_HASH_BLOCK_SIZE_MSK) &&
- !creq->last_req) {
- ret = mv_cesa_ahash_alloc_cache(req);
- if (ret)
- return ret;
- }
if (creq->cache_ptr + req->nbytes < 64 && !creq->last_req) {
*cached = true;
@@ -505,10 +452,17 @@ mv_cesa_ahash_dma_add_cache(struct mv_cesa_tdma_chain *chain,
gfp_t flags)
{
struct mv_cesa_ahash_dma_req *ahashdreq = &creq->req.dma;
+ int ret;
if (!creq->cache_ptr)
return 0;
+ ret = mv_cesa_ahash_dma_alloc_cache(ahashdreq, flags);
+ if (ret)
+ return ret;
+
+ memcpy(ahashdreq->cache, creq->cache, creq->cache_ptr);
+
return mv_cesa_dma_add_data_transfer(chain,
CESA_SA_DATA_SRAM_OFFSET,
ahashdreq->cache_dma,
@@ -848,10 +802,6 @@ static int mv_cesa_ahash_import(struct ahash_request *req, const void *hash,
if (!cache_ptr)
return 0;
- ret = mv_cesa_ahash_alloc_cache(req);
- if (ret)
- return ret;
-
memcpy(creq->cache, cache, cache_ptr);
creq->cache_ptr = cache_ptr;
@@ -860,9 +810,14 @@ static int mv_cesa_ahash_import(struct ahash_request *req, const void *hash,
static int mv_cesa_md5_init(struct ahash_request *req)
{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
struct mv_cesa_op_ctx tmpl = { };
mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_MD5);
+ creq->state[0] = MD5_H0;
+ creq->state[1] = MD5_H1;
+ creq->state[2] = MD5_H2;
+ creq->state[3] = MD5_H3;
mv_cesa_ahash_init(req, &tmpl, true);
@@ -923,9 +878,15 @@ struct ahash_alg mv_md5_alg = {
static int mv_cesa_sha1_init(struct ahash_request *req)
{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
struct mv_cesa_op_ctx tmpl = { };
mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA1);
+ creq->state[0] = SHA1_H0;
+ creq->state[1] = SHA1_H1;
+ creq->state[2] = SHA1_H2;
+ creq->state[3] = SHA1_H3;
+ creq->state[4] = SHA1_H4;
mv_cesa_ahash_init(req, &tmpl, false);
@@ -986,9 +947,18 @@ struct ahash_alg mv_sha1_alg = {
static int mv_cesa_sha256_init(struct ahash_request *req)
{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
struct mv_cesa_op_ctx tmpl = { };
mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA256);
+ creq->state[0] = SHA256_H0;
+ creq->state[1] = SHA256_H1;
+ creq->state[2] = SHA256_H2;
+ creq->state[3] = SHA256_H3;
+ creq->state[4] = SHA256_H4;
+ creq->state[5] = SHA256_H5;
+ creq->state[6] = SHA256_H6;
+ creq->state[7] = SHA256_H7;
mv_cesa_ahash_init(req, &tmpl, false);