From: Joel Fernandes Subject: [PATCH 05/10] crypto: omap-aes: Sync SG before DMA operation Date: Wed, 14 Aug 2013 18:12:44 -0500 Message-ID: <1376521969-16807-6-git-send-email-joelf@ti.com> References: <1376521969-16807-1-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: <1376521969-16807-1-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 9104a7f..df2f867 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -499,6 +499,8 @@ 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); @@ -686,6 +688,8 @@ 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