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ide: add ide_dma_prepare() helper

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* Add ide_dma_prepare() helper.

* Convert ide_issue_pc() and do_rw_taskfile() to use it.

* Make ide_build_sglist() static.

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2009-03-31 20:15:20 +02:00
parent 4453011f95
commit 5ae5412d9a
4 changed files with 19 additions and 21 deletions
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7
include/linux/ide.h
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@@ -1443,7 +1443,8 @@ ide_startstop_t ide_dma_intr(ide_drive_t *);
int ide_allocate_dma_engine(ide_hwif_t *);
void ide_release_dma_engine(ide_hwif_t *);
int ide_build_sglist(ide_drive_t *, struct ide_cmd *);
int ide_dma_prepare(ide_drive_t *, struct ide_cmd *);
void ide_destroy_dmatable(ide_drive_t *);
#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
@@ -1477,8 +1478,8 @@ static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
static inline int ide_build_sglist(ide_drive_t *drive,
struct ide_cmd *cmd) { return 0; }
static inline int ide_dma_prepare(ide_drive_t *drive,
struct ide_cmd *cmd) { return 1; }
static inline void ide_destroy_dmatable(ide_drive_t *drive) { ; }
#endif /* CONFIG_BLK_DEV_IDEDMA */