| Message ID | 1426266882-31626-1-git-send-email-horia.geanta@freescale.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Herbert Xu |
| Headers | show |
On 3/13/2015 7:14 PM, Horia Geanta wrote: > The CRYPTO_TFM_REQ_DMA flag can be used by backend implementations to > indicate to crypto API the need to allocate GFP_DMA memory > for private contexts of the crypto requests. > > Signed-off-by: Horia Geanta <horia.geanta@freescale.com> > --- ahash_request_alloc() update is missing from the patch. > include/linux/crypto.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/include/linux/crypto.h b/include/linux/crypto.h > index fb5ef16d6a12..64258c9198d5 100644 > --- a/include/linux/crypto.h > +++ b/include/linux/crypto.h > @@ -103,6 +103,7 @@ > #define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100 > #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200 > #define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400 > +#define CRYPTO_TFM_REQ_DMA 0x00000800 > #define CRYPTO_TFM_RES_WEAK_KEY 0x00100000 > #define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000 > #define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000 > @@ -1108,6 +1109,10 @@ static inline struct ablkcipher_request *ablkcipher_request_alloc( > { > struct ablkcipher_request *req; > > + if (crypto_ablkcipher_reqsize(tfm) && > + (crypto_ablkcipher_get_flags(tfm) & CRYPTO_TFM_REQ_DMA)) > + gfp |= GFP_DMA; > + > req = kmalloc(sizeof(struct ablkcipher_request) + > crypto_ablkcipher_reqsize(tfm), gfp); > > @@ -1471,6 +1476,10 @@ static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm, > { > struct aead_request *req; > > + if (crypto_aead_reqsize(tfm) && > + (crypto_aead_get_flags(tfm) & CRYPTO_TFM_REQ_DMA)) > + gfp |= GFP_DMA; > + > req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp); > > if (likely(req)) > -- 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
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index fb5ef16d6a12..64258c9198d5 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -103,6 +103,7 @@ #define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100 #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200 #define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400 +#define CRYPTO_TFM_REQ_DMA 0x00000800 #define CRYPTO_TFM_RES_WEAK_KEY 0x00100000 #define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000 #define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000 @@ -1108,6 +1109,10 @@ static inline struct ablkcipher_request *ablkcipher_request_alloc( { struct ablkcipher_request *req; + if (crypto_ablkcipher_reqsize(tfm) && + (crypto_ablkcipher_get_flags(tfm) & CRYPTO_TFM_REQ_DMA)) + gfp |= GFP_DMA; + req = kmalloc(sizeof(struct ablkcipher_request) + crypto_ablkcipher_reqsize(tfm), gfp); @@ -1471,6 +1476,10 @@ static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm, { struct aead_request *req; + if (crypto_aead_reqsize(tfm) && + (crypto_aead_get_flags(tfm) & CRYPTO_TFM_REQ_DMA)) + gfp |= GFP_DMA; + req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp); if (likely(req))
The CRYPTO_TFM_REQ_DMA flag can be used by backend implementations to indicate to crypto API the need to allocate GFP_DMA memory for private contexts of the crypto requests. Signed-off-by: Horia Geanta <horia.geanta@freescale.com> --- include/linux/crypto.h | 9 +++++++++ 1 file changed, 9 insertions(+)