Revert "block: Fix bounce limit setting in DM"

This reverts commit a05c0205ba031c01bba33a21bf0a35920eb64833.

DM doesn't need to access the bounce_pfn directly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 9acd0b7e802..8d339349289 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -194,23 +194,6 @@ void blk_queue_bounce_limit(struct request_queue *q, u64 dma_mask)
 EXPORT_SYMBOL(blk_queue_bounce_limit);
 
 /**
- * blk_queue_bounce_pfn - set the bounce buffer limit for queue
- * @q: the request queue for the device
- * @pfn: max address
- *
- * Description:
- *    This function is similar to blk_queue_bounce_limit except it
- *    neither changes allocation flags, nor does it set up the ISA DMA
- *    pool. This function should only be used by stacking drivers.
- *    Hardware drivers should use blk_queue_bounce_limit instead.
- */
-void blk_queue_bounce_pfn(struct request_queue *q, u64 pfn)
-{
-	q->limits.bounce_pfn = pfn;
-}
-EXPORT_SYMBOL(blk_queue_bounce_pfn);
-
-/**
  * blk_queue_max_sectors - set max sectors for a request for this queue
  * @q:  the request queue for the device
  * @max_sectors:  max sectors in the usual 512b unit