Re: [PATCH v2] hexagon: modify ffs() and fls() to return int
From: Richard Kuo
Date: Mon Jul 23 2018 - 18:50:31 EST
On Sun, Jul 22, 2018 at 04:03:58PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>
> Building drivers/mtd/nand/raw/nandsim.c on arch/hexagon/ produces a
> printk format build warning. This is due to hexagon's ffs() being
> coded as returning long instead of int.
>
> Fix the printk format warning by changing all of hexagon's ffs() and
> fls() functions to return int instead of long. The variables that
> they return are already int instead of long. This return type
> matches the return type in <asm-generic/bitops/>.
>
> ../drivers/mtd/nand/raw/nandsim.c: In function 'init_nandsim':
> ../drivers/mtd/nand/raw/nandsim.c:760:2: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'long int' [-Wformat]
>
> There are no ffs() or fls() allmodconfig build errors after making this
> change.
>
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
> Cc: linux-hexagon@xxxxxxxxxxxxxxx
> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> ---
> v2:
> add hexagon contacts, drop erroneous sh contacts; [thanks, Geert]
> only change return type for ffs() and fls() [thanks, Geert]
> [drop the changes for ffz(), __ffs(), and __fls()]
>
> arch/hexagon/include/asm/bitops.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
Acked-by: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
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