[PATCH] mmc: block: disable the reliable write If the card does not support CMD23

[sdliyong]

From: Yong Li <sdliyong@xxxxxxxxx>

Signed-off-by: Yong Li <sdliyong@xxxxxxxxx>
---
 drivers/mmc/card/block.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 452782b..d9e3c45 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1366,7 +1366,8 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 	bool do_rel_wr = ((req->cmd_flags & REQ_FUA) ||
 			  (req->cmd_flags & REQ_META)) &&
 		(rq_data_dir(req) == WRITE) &&
-		(md->flags & MMC_BLK_REL_WR);
+		(md->flags & MMC_BLK_REL_WR) &&
+		!(card->quirks & MMC_QUIRK_BLK_NO_CMD23);
 
 	memset(brq, 0, sizeof(struct mmc_blk_request));
 	brq->mrq.cmd = &brq->cmd;
-- 
2.1.0

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