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| author | Alexander Kuleshov <kuleshovmail@gmail.com> | 2015-11-05 18:46:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 5d57b0146aa942b939bbd77e09130270dc9b97d2 (patch) | |
| tree | 8d86055329211d6f2e11e70ee3571ac0d5543208 | |
| parent | e7bbdd071314b52507e6c615e2cec90d46f82c57 (diff) | |
| download | op-kernel-dev-5d57b0146aa942b939bbd77e09130270dc9b97d2.zip op-kernel-dev-5d57b0146aa942b939bbd77e09130270dc9b97d2.tar.gz | |
mm/early_ioremap: use offset_in_page macro
linux/mm.h provides offset_in_page() macro. Let's use already predefined
macro instead of (addr & ~PAGE_MASK).
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/early_ioremap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/early_ioremap.c b/mm/early_ioremap.c index 17ae14b..6d5717b 100644 --- a/mm/early_ioremap.c +++ b/mm/early_ioremap.c @@ -126,7 +126,7 @@ __early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot) /* * Mappings have to be page-aligned */ - offset = phys_addr & ~PAGE_MASK; + offset = offset_in_page(phys_addr); phys_addr &= PAGE_MASK; size = PAGE_ALIGN(last_addr + 1) - phys_addr; @@ -189,7 +189,7 @@ void __init early_iounmap(void __iomem *addr, unsigned long size) if (WARN_ON(virt_addr < fix_to_virt(FIX_BTMAP_BEGIN))) return; - offset = virt_addr & ~PAGE_MASK; + offset = offset_in_page(virt_addr); nrpages = PAGE_ALIGN(offset + size) >> PAGE_SHIFT; idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot; @@ -234,7 +234,7 @@ void __init copy_from_early_mem(void *dest, phys_addr_t src, unsigned long size) char *p; while (size) { - slop = src & ~PAGE_MASK; + slop = offset_in_page(src); clen = size; if (clen > MAX_MAP_CHUNK - slop) clen = MAX_MAP_CHUNK - slop; |
