Commit 2a2c29c1 authored by Stratos Psomadakis's avatar Stratos Psomadakis Committed by Benjamin Herrenschmidt
Browse files

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: default avatarStratos Psomadakis <psomas@ece.ntua.gr>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent af442a1b

arch/powerpc/include/asm/pgtable-ppc64.h

+6 −7
Original line number Diff line number Diff line
@@ -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);



	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);

}



/*

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