[PATCH 2/2] drivers/ata: make ata_using_udma return directly and bool

[Yaowei Bai]

This patch makes ata_using_udma return bool due to this
particular function only using either one or zero as its return
value.

This patch also makes ata_using_udma return directly by removing
if condition.

No functional change.

Signed-off-by: Yaowei Bai <baiyao...@cmss.chinamobile.com>
---
 include/linux/libata.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2b01760..5dc2083 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1759,11 +1759,9 @@ static inline unsigned long ata_deadline(unsigned long 
from_jiffies,
    change in future hardware and specs, secondly 0xFF means 'no DMA' but is
    > UDMA_0. Dyma ddreigiau */
 
-static inline int ata_using_udma(struct ata_device *adev)
+static inline bool ata_using_udma(struct ata_device *adev)
 {
-       if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7)
-               return 1;
-       return 0;
+       return adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7;
 }
 
 static inline int ata_dma_enabled(struct ata_device *adev)
-- 
1.9.1