From 5258de8af04af0caf129f1ce432d1817a5800887 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Mon, 6 Jan 2014 13:33:59 -0600 Subject: [PATCH] crypto: ccp - Apply appropriate gfp_t type to memory allocations Fix some memory allocations to use the appropriate gfp_t type based on the CRYPTO_TFM_REQ_MAY_SLEEP flag. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-crypto-aes-cmac.c | 5 ++++- drivers/crypto/ccp/ccp-crypto-sha.c | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c index 64dd35e291b0..398832c2414a 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c @@ -61,6 +61,7 @@ static int ccp_do_cmac_update(struct ahash_request *req, unsigned int nbytes, unsigned int block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); unsigned int len, need_pad, sg_count; + gfp_t gfp; int ret; if (!ctx->u.aes.key_len) @@ -99,7 +100,9 @@ static int ccp_do_cmac_update(struct ahash_request *req, unsigned int nbytes, * possible data pieces (buffer, input data, padding) */ sg_count = (nbytes) ? sg_nents(req->src) + 2 : 2; - ret = sg_alloc_table(&rctx->data_sg, sg_count, GFP_KERNEL); + gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? + GFP_KERNEL : GFP_ATOMIC; + ret = sg_alloc_table(&rctx->data_sg, sg_count, gfp); if (ret) return ret; diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c index b0881df67534..0571940cfdf9 100644 --- a/drivers/crypto/ccp/ccp-crypto-sha.c +++ b/drivers/crypto/ccp/ccp-crypto-sha.c @@ -128,6 +128,7 @@ static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes, unsigned int block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); unsigned int len, sg_count; + gfp_t gfp; int ret; if (!final && ((nbytes + rctx->buf_count) <= block_size)) { @@ -156,7 +157,9 @@ static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes, * possible data pieces (hmac ipad, buffer, input data) */ sg_count = (nbytes) ? sg_nents(req->src) + 2 : 2; - ret = sg_alloc_table(&rctx->data_sg, sg_count, GFP_KERNEL); + gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? + GFP_KERNEL : GFP_ATOMIC; + ret = sg_alloc_table(&rctx->data_sg, sg_count, gfp); if (ret) return ret; -- 2.39.5