diff mbox series

[2/2] powerpc/ptrace: Disable array-bounds warning with gcc8

Message ID 20180504192313.18625-2-raj.khem@gmail.com (mailing list archive)
State Superseded
Headers show
Series [1/2] powerpc: Disable attribute-alias warnings from gcc8 | expand

Commit Message

Khem Raj May 4, 2018, 7:23 p.m. UTC
This masks the new gcc8 warning

regset.h:270:4: error: 'memcpy' offset [-527, -529] is out
of the bounds [0, 16] of object 'vrsave' with type 'union <anonymous>'

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/kernel/Makefile | 1 +
 1 file changed, 1 insertion(+)

Comments

Michael Ellerman May 8, 2018, 2:40 p.m. UTC | #1
Khem Raj <raj.khem@gmail.com> writes:

> This masks the new gcc8 warning
>
> regset.h:270:4: error: 'memcpy' offset [-527, -529] is out
> of the bounds [0, 16] of object 'vrsave' with type 'union <anonymous>'

Why would we want to mask the warning rather than fix it?

cheers

> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> ---
>  arch/powerpc/kernel/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
> index 7ac5a68ad6b1..ab159a34704a 100644
> --- a/arch/powerpc/kernel/Makefile
> +++ b/arch/powerpc/kernel/Makefile
> @@ -4,6 +4,7 @@
>  #
>  
>  CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"' $(call cc-disable-warning, attribute-alias)
> +CFLAGS_ptrace.o		+= $(call cc-disable-warning, array-bounds)
>  CFLAGS_syscalls.o	+= $(call cc-disable-warning, attribute-alias)
>  
>  subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
> -- 
> 2.17.0
diff mbox series

Patch

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 7ac5a68ad6b1..ab159a34704a 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -4,6 +4,7 @@ 
 #
 
 CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"' $(call cc-disable-warning, attribute-alias)
+CFLAGS_ptrace.o		+= $(call cc-disable-warning, array-bounds)
 CFLAGS_syscalls.o	+= $(call cc-disable-warning, attribute-alias)
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror