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SubjectRe: [PATCH 02/16] ARM: binfmt_flat: unused variable 'persistent'
On 06/10/12 00:55, Arnd Bergmann wrote:
> The flat_get_addr_from_rp() macro does not use the 'persistent' argument
> on ARM, causing a harmless compiler warning. A cast to void removes
> that warning.
>
> Without this patch, building at91x40_defconfig results in:
>
> fs/binfmt_flat.c: In function 'load_flat_file':
> fs/binfmt_flat.c:746:17: warning: unused variable 'persistent' [-Wunused-variable]
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Cc: Greg Ungerer <gerg@uclinux.org>
> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
> Cc: Bryan Wu <bryan.wu@canonical.com>

Acked-by: Greg Ungerer <gerg@uclinux.org>

I can pick this one up to, and push to the arm-soc tree.

Regards
Greg


> ---
> arch/arm/include/asm/flat.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
> index 59426a4..e847d23 100644
> --- a/arch/arm/include/asm/flat.h
> +++ b/arch/arm/include/asm/flat.h
> @@ -8,7 +8,7 @@
> #define flat_argvp_envp_on_stack() 1
> #define flat_old_ram_flag(flags) (flags)
> #define flat_reloc_valid(reloc, size) ((reloc) <= (size))
> -#define flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp)
> +#define flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp))
> #define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp)
> #define flat_get_relocate_addr(rel) (rel)
> #define flat_set_persistent(relval, p) 0
>


--
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: gerg@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close FAX: +61 7 3217 5323
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com


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