Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1274662
| From | Geliang Tang <geliangtang@163.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] dma-mapping: use offset_in_page macro |
| Date | 2015-11-21 15:20 +0100 |
| Message-ID | <qxhbb-6pV-1@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Use offset_in_page macro instead of (addr & ~PAGE_MASK). Signed-off-by: Geliang Tang <geliangtang@163.com> --- include/linux/dma-mapping.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 3293f27..c0b27ff 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -131,10 +131,10 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr, kmemcheck_mark_initialized(ptr, size); BUG_ON(!valid_dma_direction(dir)); addr = ops->map_page(dev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, + offset_in_page(ptr), size, dir, attrs); debug_dma_map_page(dev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, + offset_in_page(ptr), size, dir, addr, true); return addr; } -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH] dma-mapping: use offset_in_page macro Geliang Tang <geliangtang@163.com> - 2015-11-21 15:20 +0100
Re: [PATCH] dma-mapping: use offset_in_page macro Will Deacon <will.deacon@arm.com> - 2015-11-23 14:30 +0100
Re: [PATCH] dma-mapping: use offset_in_page macro Geliang Tang <geliangtang@163.com> - 2015-11-23 15:50 +0100
csiph-web