* [PATCH] powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
@ 2020-05-29 18:50 Christophe Leroy
2020-05-29 18:53 ` Christophe Leroy
0 siblings, 1 reply; 2+ messages in thread
From: Christophe Leroy @ 2020-05-29 18:50 UTC (permalink / raw)
To: Benjamin Herrenschmidt, Paul Mackerras, Michael Ellerman
Cc: linuxppc-dev, linux-kernel
From: Christophe Leroy <christophe.leroy@c-s.fr>
'thread' doesn't exist in kuap_check() macro.
Use 'current' instead.
Fixes: a68c31fc01ef ("powerpc/32s: Implement Kernel Userspace Access Protection")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/include/asm/book3s/32/kup.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/book3s/32/kup.h b/arch/powerpc/include/asm/book3s/32/kup.h
index db0a1c281587..668508c8a1b5 100644
--- a/arch/powerpc/include/asm/book3s/32/kup.h
+++ b/arch/powerpc/include/asm/book3s/32/kup.h
@@ -75,7 +75,7 @@
.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
--
2.25.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
2020-05-29 18:50 [PATCH] powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG Christophe Leroy
@ 2020-05-29 18:53 ` Christophe Leroy
0 siblings, 0 replies; 2+ messages in thread
From: Christophe Leroy @ 2020-05-29 18:53 UTC (permalink / raw)
To: Benjamin Herrenschmidt, Paul Mackerras, Michael Ellerman
Cc: linuxppc-dev, linux-kernel
Le 29/05/2020 à 20:50, Christophe Leroy a écrit :
> From: Christophe Leroy <christophe.leroy@c-s.fr>
>
> 'thread' doesn't exist in kuap_check() macro.
>
> Use 'current' instead.
>
> Fixes: a68c31fc01ef ("powerpc/32s: Implement Kernel Userspace Access Protection")
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Argh, can you drop this line ?
> Cc: stable@vger.kernel.org
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reported-by: kbuild test robot <lkp@intel.com>
> ---
> arch/powerpc/include/asm/book3s/32/kup.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/include/asm/book3s/32/kup.h b/arch/powerpc/include/asm/book3s/32/kup.h
> index db0a1c281587..668508c8a1b5 100644
> --- a/arch/powerpc/include/asm/book3s/32/kup.h
> +++ b/arch/powerpc/include/asm/book3s/32/kup.h
> @@ -75,7 +75,7 @@
>
> .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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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