From: Christophe Leroy christophe.leroy@csgroup.eu
commit 74016701fe5f873ae23bf02835407227138d874d upstream.
'thread' doesn't exist in kuap_check() macro.
Use 'current' instead.
Fixes: a68c31fc01ef ("powerpc/32s: Implement Kernel Userspace Access Protection") Cc: stable@vger.kernel.org Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/b459e1600b969047a74e34251a84a3d6fdf1f312.159085892... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/powerpc/include/asm/book3s/32/kup.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/powerpc/include/asm/book3s/32/kup.h +++ b/arch/powerpc/include/asm/book3s/32/kup.h @@ -2,6 +2,7 @@ #ifndef _ASM_POWERPC_BOOK3S_32_KUP_H #define _ASM_POWERPC_BOOK3S_32_KUP_H
+#include <asm/bug.h> #include <asm/book3s/32/mmu-hash.h>
#ifdef __ASSEMBLY__ @@ -75,7 +76,7 @@
.macro kuap_check current, gpr #ifdef CONFIG_PPC_KUAP_DEBUG - lwz \gpr, KUAP(thread) + lwz \gpr, THREAD + KUAP(\current) 999: twnei \gpr, 0 EMIT_BUG_ENTRY 999b, __FILE__, __LINE__, (BUGFLAG_WARNING | BUGFLAG_ONCE) #endif