From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Mon, 9 Jan 2006 21:12:17 +0000 (+0000)
Subject: [MMC] Add DATA_MULTI flag
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=788ee7b09883515f3a72a8f2a980df5e94f37e2c;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[MMC] Add DATA_MULTI flag

Some hosts need to know that a transfer will be multi-block.
Add a data flag to indicate multiple data block transfers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index 198561d21710..f43cdfcbfd2c 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -200,7 +200,13 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 			brq.data.flags |= MMC_DATA_WRITE;
 			brq.data.blocks = 1;
 		}
-		brq.mrq.stop = brq.data.blocks > 1 ? &brq.stop : NULL;
+
+		if (brq.data.blocks > 1) {
+			brq.data.flags |= MMC_DATA_MULTI;
+			brq.mrq.stop = &brq.stop;
+		} else {
+			brq.mrq.stop = NULL;
+		}
 
 		brq.data.sg = mq->sg;
 		brq.data.sg_len = blk_rq_map_sg(req->q, req, brq.data.sg);
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index aef6042f8f0b..86d491b3b73f 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -64,6 +64,7 @@ struct mmc_data {
 #define MMC_DATA_WRITE	(1 << 8)
 #define MMC_DATA_READ	(1 << 9)
 #define MMC_DATA_STREAM	(1 << 10)
+#define MMC_DATA_MULTI	(1 << 11)
 
 	unsigned int		bytes_xfered;