Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1166329

[PATCH 1/1 linux-next] mmc: omap: use for_each_sg() for scatterlist parsing

From Fabian Frederick <fabf@skynet.be>
Newsgroups linux.kernel
Subject [PATCH 1/1 linux-next] mmc: omap: use for_each_sg() for scatterlist parsing
Date 2015-06-16 21:20 +0200
Message-ID <pC4yS-3dz-25@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View raw


See Documentation/DMA-API.txt - Part Id

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
This is untested.

 drivers/mmc/host/omap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 68dd6c7..70dcf07 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -948,6 +948,7 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
 {
 	struct mmc_data *data = req->data;
 	int i, use_dma = 1, block_size;
+	struct scatterlist *sg;
 	unsigned sg_len;
 
 	host->data = data;
@@ -972,8 +973,8 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
 	sg_len = (data->blocks == 1) ? 1 : data->sg_len;
 
 	/* Only do DMA for entire blocks */
-	for (i = 0; i < sg_len; i++) {
-		if ((data->sg[i].length % block_size) != 0) {
+	for_each_sg(data->sg, sg, sg_len, i) {
+		if ((sg->length % block_size) != 0) {
 			use_dma = 0;
 			break;
 		}
-- 
2.4.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[PATCH 1/1 linux-next] mmc: omap: use for_each_sg() for scatterlist parsing Fabian Frederick <fabf@skynet.be> - 2015-06-16 21:20 +0200

csiph-web