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powerpc/mm: Add MMU_FTR_KERNEL_RO to possible feature mask

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Without this we will always find the feature disabled.

Fixes: 984d7a1ec6 ("powerpc/mm: Fixup kernel read only mapping")
Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2017-02-07 00:09:27 +05:30 committed by Michael Ellerman
parent 1a6822d194
commit a5ecdad484
1 changed files with 1 additions and 0 deletions
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arch/powerpc/include/asm/mmu.h
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@ -136,6 +136,7 @@ enum {
MMU_FTR_NO_SLBIE_B | MMU_FTR_16M_PAGE | MMU_FTR_TLBIEL |
MMU_FTR_LOCKLESS_TLBIE | MMU_FTR_CI_LARGE_PAGE |
MMU_FTR_1T_SEGMENT | MMU_FTR_TLBIE_CROP_VA |
MMU_FTR_KERNEL_RO |
#ifdef CONFIG_PPC_RADIX_MMU
MMU_FTR_TYPE_RADIX |
#endif