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powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG

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commit 74016701fe5f873ae23bf02835407227138d874d upstream.

'thread' doesn't exist in kuap_check() macro.

Use 'current' instead.

Fixes: a68c31fc01 ("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/b459e1600b969047a74e34251a84a3d6fdf1f312.1590858925.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe Leroy 2020-05-30 17:16:33 +00:00 • committed by Greg Kroah-Hartman
commit 23e07a77aa
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/include/asm/book3s/32/kup.h
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@ -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