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authorMichael Ellerman <mpe@ellerman.id.au>2016-07-26 15:29:18 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-08-01 04:14:56 +0300
commita28e46f109c9637b2539b9995078d5df4f7f6c09 (patch)
tree954cdde1913d243e517596aab5718dfa65fcd800 /arch/powerpc/include/asm/mmu.h
parent9e8066f398396d26010d9c6c3c2538ff25461ef8 (diff)
downloadlinux-a28e46f109c9637b2539b9995078d5df4f7f6c09.tar.xz
powerpc/kernel: Check features don't change after patching
Early in boot we binary patch some sections of code based on the CPU and MMU feature bits. But it is a one-time patching, there is no facility for repatching the code later if the set of features change. It is a major bug if the set of features changes after we've done the code patching - so add a check for it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
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