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ARM: 7794/1: block: Rename parameter dma_mask to max_addr for blk_queue_bounce_limit()

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The blk_queue_bounce_limit() API parameter 'dma_mask' is actually the
maximum address the device can handle rather than a dma_mask. Rename
it accordingly to avoid it being interpreted as dma_mask.

No functional change.

The idea is to fix the bad assumptions about dma_mask wherever it could
be miss-interpreted.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Santosh Shilimkar 2013-07-29 14:17:54 +01:00 committed by Russell King
parent 4dcfa60071
commit 9f7e45d83e
1 changed files with 4 additions and 4 deletions
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8
block/blk-settings.c
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@ -195,17 +195,17 @@ EXPORT_SYMBOL(blk_queue_make_request);
/**
* blk_queue_bounce_limit - set bounce buffer limit for queue
* @q: the request queue for the device
* @dma_mask: the maximum address the device can handle
* @max_addr: the maximum address the device can handle
*
* Description:
* Different hardware can have different requirements as to what pages
* it can do I/O directly to. A low level driver can call
* blk_queue_bounce_limit to have lower memory pages allocated as bounce
* buffers for doing I/O to pages residing above @dma_mask.
* buffers for doing I/O to pages residing above @max_addr.
**/
void blk_queue_bounce_limit(struct request_queue *q, u64 dma_mask)
void blk_queue_bounce_limit(struct request_queue *q, u64 max_addr)
{
unsigned long b_pfn = dma_mask >> PAGE_SHIFT;
unsigned long b_pfn = max_addr >> PAGE_SHIFT;
int dma = 0;
q->bounce_gfp = GFP_NOIO;