From: Michael Ellerman mpe@ellerman.id.au
commit 61da50b76b62fd815aa82d853bf82bf4f69568f5 upstream.
Currently you can enable PPC_KUAP_DEBUG when PPC_KUAP is disabled, even though the former has not effect without the latter.
Fix it so that PPC_KUAP_DEBUG can only be enabled when PPC_KUAP is enabled, not when the platform could support KUAP (PPC_HAVE_KUAP).
Fixes: 890274c2dc4c ("powerpc/64s: Implement KUAP for Radix MMU") Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20200301111738.22497-1-mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/powerpc/platforms/Kconfig.cputype | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -397,7 +397,7 @@ config PPC_KUAP
config PPC_KUAP_DEBUG bool "Extra debugging for Kernel Userspace Access Protection" - depends on PPC_HAVE_KUAP && (PPC_RADIX_MMU || PPC_32) + depends on PPC_KUAP && (PPC_RADIX_MMU || PPC_32) help Add extra debugging for Kernel Userspace Access Protection (KUAP) If you're unsure, say N.