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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-04-29 13:26:06 (GMT)
committerMichael Ellerman <mpe@ellerman.id.au>2016-05-11 11:49:25 (GMT)
commita8ed87c92adf1fd45142323e04f15b522117d575 (patch)
tree3bcac3310754e7e710366b68a779e6768a5bf467 /block/partitions
parent773edeadf672546cd554e0797fc02a9e6edf01ae (diff)
downloadlinux-a8ed87c92adf1fd45142323e04f15b522117d575.tar.xz
powerpc/mm/radix: Add MMU_FTR_RADIX
We are going to add asm changes in the follow up patches. Add the feature bit now so that we can get it all build. mpe: When CONFIG_PPC_RADIX_MMU=n we omit MMU_FTR_RADIX from the MMU_FTRS_POSSIBLE mask. This allows the compiler to work out that those checks will always be false and so the code can be elided completely. Note we do *not* define MMU_FTR_RADIX to 0 in the RADIX_MMU=n case, because that doesn't work with the ASM_FTR patching. In particular an IF_SET section will result in a mask and value of zero, which is always true, meaning the section *won't* be patched, which is the opposite of what we want. 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>
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