Re: PATCH: libv4l-fix-idct-inline-assembly.diff

[Thierry Merle <thierry.merle@xxxxxxx>]

Gregor Jasny a écrit :
> Hi,
>
> This patch fixes the input constraint for the sar instruction. It allows only an
> immediate or cl as shift width.
>
> Thanks,
> Gregor
>
> Signed-off-by: Gregor Jasny <jasny@xxxxxxxxxx>
>
> diff -r 61deeffda900 v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c
> --- a/v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c	Fri Jul 04 07:21:55 2008 +0200
> +++ b/v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c	Fri Jul 04 16:24:33 2008 +0200
> @@ -92,7 +92,7 @@ static inline unsigned char descale_and_
>        "\tcmpl %4,%1\n"
>        "\tcmovg %4,%1\n"
>        : "=r"(x)
> -      : "0"(x), "Ir"(shift), "ir"(1UL<<(shift-1)), "r" (0xff), "r" (0)
> +      : "0"(x), "Ic"((unsigned char)shift), "ir"(1UL<<(shift-1)), "r" (0xff), "r" (0)
>        );
>    return x;
>  }
>
>   
Applied on http://www.linuxtv.org/hg/~tmerle/v4l2-library

Thanks,

Thierry

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