Hi Christoph,
On 08.05.2020 09:16, Christoph Hellwig wrote:
> On Fri, May 08, 2020 at 09:12:13AM +0200, Marek Szyprowski wrote:
>> Then we would just need one more helper to construct scatterlist, as the
>> above two are read-only don't allow to modify scatterlist:
>>
>> #define
On Fri, May 08, 2020 at 09:12:13AM +0200, Marek Szyprowski wrote:
> Then we would just need one more helper to construct scatterlist, as the
> above two are read-only don't allow to modify scatterlist:
>
> #define for_each_sgtable_sg(sgt, sg, i) \
> for_each_sg(sgt->sgl,
Hi Christoph,
On 05.05.2020 13:09, Christoph Hellwig wrote:
> On Tue, May 05, 2020 at 12:51:58PM +0200, Marek Szyprowski wrote:
>> On 05.05.2020 12:15, Christoph Hellwig wrote:
- for_each_sg_page(st->sgl, _iter, st->nents, 0)
+ for_each_sg_page(st->sgl, _iter,
On Tue, May 05, 2020 at 12:51:58PM +0200, Marek Szyprowski wrote:
> Hi Christoph,
>
> On 05.05.2020 12:15, Christoph Hellwig wrote:
> >> - for_each_sg_page(st->sgl, _iter, st->nents, 0)
> >> + for_each_sg_page(st->sgl, _iter, st->orig_nents, 0)
> > Would it make sense to also
Hi Christoph,
On 05.05.2020 12:15, Christoph Hellwig wrote:
>> -for_each_sg_page(st->sgl, _iter, st->nents, 0)
>> +for_each_sg_page(st->sgl, _iter, st->orig_nents, 0)
> Would it make sense to also add a for_each_sgtable_page helper that
> hides the use of orig_nents? To
> - for_each_sg_page(st->sgl, _iter, st->nents, 0)
> + for_each_sg_page(st->sgl, _iter, st->orig_nents, 0)
Would it make sense to also add a for_each_sgtable_page helper that
hides the use of orig_nents? To be used like:
for_each_sgtable_page(st, _iter,
The Documentation/DMA-API-HOWTO.txt states that dma_map_sg returns the
numer of the created entries in the DMA address space. However the
subsequent calls to dma_sync_sg_for_{device,cpu} and dma_unmap_sg must be
called with the original number of the entries passed to dma_map_sg. The
