[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 198561d..f43cdfc 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -200,7 +200,13 @@
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 aef6042..86d491b 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -64,6 +64,7 @@
#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;