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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-05-20 08:26:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-20 07:51:20 -0700 |
| commit | 1bb271db63c356212564aad050b2cf026f800858 (patch) | |
| tree | dfda7f0ef5b7d7048354df1edfd96f368e3ff927 /include | |
| parent | 2bd3a99c9d1851182f73d0a024dc5bdb0a470e8c (diff) | |
| download | op-kernel-dev-1bb271db63c356212564aad050b2cf026f800858.zip op-kernel-dev-1bb271db63c356212564aad050b2cf026f800858.tar.gz | |
x86: fix warning on 32-bit non-PAE
Fix the warning:
include2/asm/pgtable.h: In function `pte_modify':
include2/asm/pgtable.h:290: warning: left shift count >= width of type
On 32-bit PAE the virtual and physical addresses are both 32-bits,
so it ends up evaluating 1<<32. Do the shift as a 64-bit shift then
cast to the appropriate size. This should all be done at compile time,
and so have no effect on generated code.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/page.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 76b35e6..223146d 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -29,7 +29,7 @@ /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) -#define __PHYSICAL_MASK ((((phys_addr_t)1) << __PHYSICAL_MASK_SHIFT) - 1) +#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1) #define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1) #ifndef __ASSEMBLY__ |
