On Fri, 8 Aug 2008 09:15:51 -0700
Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote:
> On Friday, August 8, 2008 8:18 am Prarit Bhargava wrote:
> > --- a/include/linux/dma-mapping.h
> > +++ b/include/linux/dma-mapping.h
> > @@ -78,7 +78,7 @@ static inline unsigned int dma_set_max_seg_size(struct
> > device
> > static inline unsigned long dma_get_seg_boundary(struct device *dev)
> > {
> > return dev->dma_parms ?
> > - dev->dma_parms->segment_boundary_mask : 0xffffffff;
> > + dev->dma_parms->segment_boundary_mask : 0xffffffffUL;
> > }
>
> Yeah generally you need to cast values like this when working with real
> unsigned long values rather than ints, but this *should* still be safe
> (barring a compiler bug). The return type is unsigned long, so even if you
> just return 0xffffffff the right thing should still happen...
I told Prarid that the overflow should not happen here again and
again...
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