Re: [PATCH] fix do_xor_speed 64-bit devision issue on 32-bits arch

[fanchaoting <fanchaoting@cn.fujitsu.com>]

Benny Halevy 写道:
> I am trying to build a pnfs client on a 32 bit system  and the
> pnfs-latest  kernel fails to compile. I get the following error
> 
>  >  Building modules, stage 2.
>  >  TEST    posttest
>  > MODPOST 2046 modules
>  >ERROR: "__udivdi3" [crypto/xor.ko] undefined!
>  >make[1]: *** [__modpost] Error 1
>  >make: *** [modules] Error 2
>  >make: *** Waiting for unfinished jobs....
>  >Succeed: decoded and checked 1244492 instructions
> 
> Reported-by: Rita Sequeira <rita.prajval@gmail.com>
> Signed-off-by: Benny Halevy <bhalevy@tonian.com>
> ---
> 
> untested patch yet...
> 
>  crypto/xor.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/crypto/xor.c b/crypto/xor.c
> index 65433f5..2151ded 100644
> --- a/crypto/xor.c
> +++ b/crypto/xor.c
> @@ -95,7 +95,8 @@
>  
>  	ns_end -= ns_begin;
>  	if (ns_end > 0)
> -		speed = BENCH_SIZE / 1024 * count * NSEC_PER_SEC / ns_end;
> +		speed = BENCH_SIZE / 1024 * count *
> +				(unsigned)(NSEC_PER_SEC / ns_end);
>  	else
>  		speed = 17;
>  	tmpl->speed = speed;

Hi,I also meet this problem ,but when  i use you patch ,i can't solve this problem.