From: Joel Fernandes <joelf@ti.com>
Date: Sun, 18 Aug 2013 02:42:26 +0000 (-0500)
Subject: crypto: omap-aes - Sync SG before DMA operation
X-Git-Tag: next-20130822~68^2~14
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0a641712ef9459df5d8c19fc19e686887257b3e3;p=karo-tx-linux.git

crypto: omap-aes - Sync SG before DMA operation

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 <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 114c55a59efe..4ed2a8c40394 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -484,6 +484,8 @@ 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);
@@ -670,6 +672,8 @@ 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);