The <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@xxxxxxxxx>
---
mm/early_ioremap.c | 6 +++---
1 file 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;
--
2.5.0
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