On Fri, Feb 01, 2013 at 06:52:55PM +0000, Christoph Lameter wrote:
> On Fri, 1 Feb 2013, kbuild test robot wrote:
>
> > 374 int index;
> > 375
> > 376 if (size <= 192) {
> > 377 if (!size)
> > 378 return ZERO_SIZE_PTR;
> > 379
> > 380 index = size_index[size_index_elem(size)];
> > 381 } else
> > 382 index = fls(size - 1);
> > 383
> > 384 #ifdef CONFIG_ZONE_DMA
> > > 385 if (unlikely((flags & SLAB_CACHE_DMA)))
>
> Should flags be cast to integer before doing the & operation?
It seems not easy to quiet this warning..
(unsigned long)flags & SLAB_CACHE_DMA
/c/wfg/sound/mm/slab_common.c:385:13: sparse: cast from restricted gfp_t
flags & (gfp_t)SLAB_CACHE_DMA
/c/wfg/sound/mm/slab_common.c:385:13: sparse: cast to restricted gfp_t
Thanks,
Fengguang
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