Re: [RFC] Re: [Xen-devel] [PATCH] fix xenctl_cpumap translation to handle bitops accessed like arrays

[Jimi Xenidis <jimix@xxxxxxxxxxxxxx>]

Ack.. I saw it hit Xen-staging.. Thanks

-JX
On Jan 21, 2007, at 11:20 AM, Keir Fraser wrote:

> Yes looks like I screwed up the source endianness. Perhaps the  
> first two
> lines of the inner loop should be replaced by:
>  l |= (unsigned long)bp[b+j] << (j*8);
>
> (and a similar change to the similar function) in libxc?
>
>  -- Keir
>
> On 21/1/07 4:10 pm, "Jimi Xenidis" <jimix@xxxxxxxxxxxxxx> wrote:
>
> >  From the patch that you committed, AFAICT this function does not do
> > anything:
> >
> > void bitmap_byte_to_long(unsigned long *lp, const uint8_t *bp, int
> > nbits)
> > {
> > unsigned long l;
> > int i, j, b;
> >
> > for (i = 0, b = 0; nbits > 0; i++, b += sizeof(l)) {
> > l = 0;
> > for (j = 0; (j < sizeof(l)) && (nbits > 0); j++) {
> > l <<= 8;
> > l |= bp[b+j];
> > nbits -= 8;
> > }
> > lp[i] = l;
> > }
> > }
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