mmc: card: If the card does not support CMD23, disable the reliable write

PATCH New Yong Li 1 participant 1 message Apr 11, 2013 MMC, SD and SDIO

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Yong Li

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2013-04-11 06:31 UTC #0 lore raw

PATCH 1/1 mmc: card: If the card does not support CMD23, disable the reliable write

Signed-off-by Yong Li <[email protected]>

---
 drivers/mmc/card/block.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

drivers/mmc/card/block.c +2 -1

index 21056b9..8039a87 100644
@@ -1175,7 +1175,8 @@ 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;

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1.7.10.4