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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-11-05 06:08:00 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-05 06:08:00 +0300 |
| commit | 6037d6bbdff65eb5a84fe35e140f4da4f7cc103a (patch) | |
| tree | 67b86d8559935c04a0918afd3274eef778017d57 /include | |
| parent | c2cc87ca9561ddfe744d446789cc10f507e87db9 (diff) | |
| download | linux-6037d6bbdff65eb5a84fe35e140f4da4f7cc103a.tar.xz | |
[libata] ATAPI pad allocation fixes/cleanup
Use ata_pad_{alloc,free} in two drivers, to factor out common code.
Add ata_pad_{alloc,free} to two other drivers, which needed the padding
but had not been updated.
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 6225b78fa65b..dcd17e7458ab 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -777,4 +777,17 @@ static inline unsigned int __ac_err_mask(u8 status) return mask; } +static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev) +{ + ap->pad_dma = 0; + ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ, + &ap->pad_dma, GFP_KERNEL); + return (ap->pad == NULL) ? -ENOMEM : 0; +} + +static inline void ata_pad_free(struct ata_port *ap, struct device *dev) +{ + dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); +} + #endif /* __LINUX_LIBATA_H__ */ |