Commit c1304236 authored by Linus Torvalds's avatar Linus Torvalds

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
parents 988faa73 dfe97ad3
......@@ -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);
......
......@@ -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)
......
......@@ -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;
......
......@@ -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)
req->cache = dma_pool_alloc(cesa_dev->dma->cache_pool, flags,
&req->cache_dma);
if (!req->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)
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);
......
......@@ -635,8 +635,7 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
if (!s) {
printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
"[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
rc = -ENOMEM;
goto out;
return -ENOMEM;
}
(*packet_size) = 0;
rc = ecryptfs_find_auth_tok_for_sig(
......@@ -922,8 +921,7 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
if (!s) {
printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
"[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
rc = -ENOMEM;
goto out;
return -ENOMEM;
}
if (max_packet_size < ECRYPTFS_TAG_70_MIN_METADATA_SIZE) {
printk(KERN_WARNING "%s: max_packet_size is [%zd]; it must be "
......
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