Re: [PATCH v2 2/2] dmaengine: stm32-mdma: Fix incomplete Hw descriptors allocator

[Geert Uytterhoeven]

Hi Vinod,

On Fri, Apr 13, 2018 at 6:02 AM, Vinod Koul <vinod.koul@xxxxxxxxx> wrote:
> On Wed, Apr 11, 2018 at 04:44:39PM +0200, Pierre-Yves MORDRET wrote:
>
>>  struct stm32_mdma_desc {
>>       struct virt_dma_desc vdesc;
>>       u32 ccr;
>> -     struct stm32_mdma_hwdesc *hwdesc;
>> -     dma_addr_t hwdesc_phys;
>>       bool cyclic;
>>       u32 count;
>> +     struct stm32_mdma_desc_node node[];
>
> some ppl use node[0] for this but i think either is fine..

node[] is the correct one, node[0] may hide future bugs, cfr. commit
a158531f3c92467d ("gpio: 74x164: Fix crash during .remove()")

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds