On Sat, Apr 06, 2013 at 09:54:55PM +0800, Jiang Liu wrote:
> Fix following build warnings cuased by free_reserved_area():
>
> arch/arm/mm/init.c: In function 'mem_init':
> arch/arm/mm/init.c:603:2: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [enabled by default]
> free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL);
> ^
> In file included from include/linux/mman.h:4:0,
> from arch/arm/mm/init.c:15:
> include/linux/mm.h:1301:22: note: expected 'long unsigned int' but argument is of type 'void *'
> extern unsigned long free_reserved_area(unsigned long start, unsigned long end,
>
> mm/page_alloc.c: In function 'free_reserved_area':
> >> mm/page_alloc.c:5134:3: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default]
> In file included from arch/mips/include/asm/page.h:49:0,
> from include/linux/mmzone.h:20,
> from include/linux/gfp.h:4,
> from include/linux/mm.h:8,
> from mm/page_alloc.c:18:
> arch/mips/include/asm/io.h:119:29: note: expected 'const volatile void *' but argument is of type 'long unsigned int'
> mm/page_alloc.c: In function 'free_area_init_nodes':
> mm/page_alloc.c:5030:34: warning: array subscript is below array bounds [-Warray-bounds]
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
> Reported-by: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linux-mm@xxxxxxxxx
> ---
> arch/arm/mm/init.c | 6 ++++--
> mm/page_alloc.c | 2 +-
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
> index 9a5cdc0..7a82fcd 100644
> --- a/arch/arm/mm/init.c
> +++ b/arch/arm/mm/init.c
> @@ -600,7 +600,8 @@ void __init mem_init(void)
>
> #ifdef CONFIG_SA1111
> /* now that our DMA memory is actually so designated, we can free it */
> - free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL);
> + free_reserved_area((unsigned long)__va(PHYS_PFN_OFFSET),
> + (unsigned long)swapper_pg_dir, 0, NULL);
> #endif
>
> free_highpages();
> @@ -728,7 +729,8 @@ void free_initmem(void)
> extern char __tcm_start, __tcm_end;
>
> poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
> - free_reserved_area(&__tcm_start, &__tcm_end, 0, "TCM link");
> + free_reserved_area((unsigned long)&__tcm_start,
> + (unsigned long)&__tcm_end, 0, "TCM link");
> #endif
>
> poison_init_mem(__init_begin, __init_end - __init_begin);
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index e4923e9..8bf7956 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -5196,7 +5196,7 @@ unsigned long free_reserved_area(unsigned long start, unsigned long end,
> for (pages = 0; pos < end; pos += PAGE_SIZE, pages++) {
> if (poison)
> memset((void *)pos, poison, PAGE_SIZE);
> - free_reserved_page(virt_to_page(pos));
> + free_reserved_page(virt_to_page((void *)pos));
Don't all these casts suggest to you that you may have the type wrong
in the first place?
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
