Re: [PATCH 2.6.13-rc6-mm2] v9fs: use standard kernel byteswapping routines

From: Eric Van Hensbergen
Date: Sun Aug 28 2005 - 16:43:48 EST


On 8/28/05, Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:
> On Sun, Aug 28, 2005 at 04:05:07PM -0500, Eric Van Hensbergen wrote:
> > [PATCH] v9fs: use standard kernel byteswapping routines
> >
> > Originally suggested by hch, we have removed our byteswap code
> > and replaced it with calls to the standard kernel byteswapping code.
>
> > - buf->p[0] = val;
> > - buf->p[1] = val >> 8;
> > + *(u16 *) buf->p = cpu_to_le16(val);
>
> *(__le16 *)
>
> > - ret = buf->p[0] | (buf->p[1] << 8);
> > + ret = le16_to_cpu(*(u16 *)buf->p);
>
> *(__le16 *) etc.
>
> Otherwise sparse will warn.
>

It didn't give me any complaints -- I'm building my kernels with a
recent (updated today) version of sparse and built with C=1 -- am I
not invoking it correctly?

-eric
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