From: Joel Fernandes Subject: [PATCH v2 05/14] crypto: omap-aes: Sync SG before DMA operation Date: Sat, 17 Aug 2013 21:42:26 -0500 Message-ID: <1376793755-30478-6-git-send-email-joelf@ti.com> References: <1376793755-30478-1-git-send-email-joelf@ti.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Linux OMAP List , Linux ARM Kernel List , Linux Kernel Mailing List , Linux Crypto Mailing List , Joel Fernandes To: Herbert Xu , "David S. Miller" , Mark Greer , Tony Lindgren , Santosh Shilimkar , Rajendra Nayak , Lokesh Vutla Return-path: In-Reply-To: <1376793755-30478-1-git-send-email-joelf@ti.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org Earlier functions that did a similar sync are replaced by the dma_sync_sg_* which can operate on entire SG list. Signed-off-by: Joel Fernandes --- drivers/crypto/omap-aes.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 64dd5c1..5e034a1 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -489,6 +489,8 @@ static int omap_aes_crypt_dma(struct crypto_tfm *tfm, struct dma_slave_config cfg; int ret; + dma_sync_sg_for_device(dd->dev, dd->in_sg, in_sg_len, DMA_TO_DEVICE); + memset(&cfg, 0, sizeof(cfg)); cfg.src_addr = dd->phys_base + AES_REG_DATA_N(dd, 0); @@ -676,6 +678,8 @@ static void omap_aes_done_task(unsigned long data) pr_debug("enter done_task\n"); + dma_sync_sg_for_cpu(dd->dev, dd->in_sg, dd->in_sg_len, DMA_FROM_DEVICE); + omap_aes_crypt_dma_stop(dd); omap_aes_finish_req(dd, 0); omap_aes_handle_queue(dd, NULL); -- 1.7.9.5