From: Stratos Psomadakis <psomas@cslab.ece.ntua.gr>
Date: Sat, 7 May 2011 04:11:31 +0000 (+0000)
Subject: powerpc/mm: Fix compiler warning in pgtable-ppc64.h [-Wunused-but-set-variable]
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2a2c29c1a581319f4485af55e8d628d89e8f2583;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git
powerpc/mm: Fix compiler warning in pgtable-ppc64.h [-Wunused-but-set-variable]
The variable 'old' is set but not used in the wrprotect functions in
arch/powerpc/include/asm/pgtable-ppc64.h, which can trigger a compiler warning.
Remove the variable, since it's not used anyway.
Signed-off-by: Stratos Psomadakis <psomas@ece.ntua.gr>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index 2b09cd522d33..81576ee0cfb1 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -257,21 +257,20 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
- unsigned long old;
- if ((pte_val(*ptep) & _PAGE_RW) == 0)
- return;
- old = pte_update(mm, addr, ptep, _PAGE_RW, 0);
+ if ((pte_val(*ptep) & _PAGE_RW) == 0)
+ return;
+
+ pte_update(mm, addr, ptep, _PAGE_RW, 0);
}
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- unsigned long old;
-
if ((pte_val(*ptep) & _PAGE_RW) == 0)
return;
- old = pte_update(mm, addr, ptep, _PAGE_RW, 1);
+
+ pte_update(mm, addr, ptep, _PAGE_RW, 1);
}
/*