[RFC v5 25/38] powerpc: helper to validate key-access permissions of a pte

helper function that checks if the read/write/execute is allowed on the pte. Signed-off-by: Ram Pai --- arch/powerpc/include/asm/book3s/64/pgtable.h |2 + arch/powerpc/include/asm/pkeys.h |9 +++ arch/powerpc/mm/pkeys.c | 31

[RFC v5 25/38] powerpc: helper to validate key-access permissions of a pte

helper function that checks if the read/write/execute is allowed on the pte. Signed-off-by: Ram Pai --- arch/powerpc/include/asm/book3s/64/pgtable.h |2 + arch/powerpc/include/asm/pkeys.h |9 +++ arch/powerpc/mm/pkeys.c | 31