Messages in this thread Patch in this message |  | | | Date | Sun, 18 Dec 2011 01:32:09 +0100 (CET) | | From | Jesper Juhl <> | | Subject | [PATCH] Use 'do {} while (0)' for empty flush_tlb_fix_spurious_fault() macro |
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If one builds the kernel with -Wempty-body one gets this warning:
mm/memory.c:3432:46: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
due to the fact that 'flush_tlb_fix_spurious_fault' is a macro that can sometimes be defined to nothing.
Signed-off-by: Jesper Juhl <jj@chaosbits.net> --- arch/x86/include/asm/pgtable.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 18601c8..ebe7e76 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -703,7 +703,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, pte_update(mm, addr, ptep); } -#define flush_tlb_fix_spurious_fault(vma, address) +#define flush_tlb_fix_spurious_fault(vma, address) do {} while (0) #define mk_pmd(page, pgprot) pfn_pmd(page_to_pfn(page), (pgprot)) -- 1.7.8
-- Jesper Juhl <jj@chaosbits.net> http://www.chaosbits.net/ Don't top-post http://www.catb.org/jargon/html/T/top-post.html Plain text mails only, please. |  |