Re: [PATCH v2] ARM: DMA: Fix kzalloc flags in __dma_alloc

[Alexandre Courbot]

On Fri, Mar 18, 2016 at 7:58 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
> On Fri, Mar 18, 2016 at 06:28:49PM +0900, Alexandre Courbot wrote:
>> Commit 19e6e5e5392b ("ARM: 8547/1: dma-mapping: store buffer
>> information") allocates a structure meant for internal buffer management
>> with the GFP flags of the buffer itself. This can trigger the following
>> safeguard in the slab/slub allocator:
>>
>>       if (unlikely(flags & GFP_SLAB_BUG_MASK)) {
>>               pr_emerg("gfp: %u\n", flags & GFP_SLAB_BUG_MASK);
>>               BUG();
>>       }
>>
>> Fix this by filtering the flags that make the slab allocator unhappy.
>>
>> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>
>> Cc: Rabin Vincent <rabin@xxxxxx>
>
> Looks much better than the original.  Please send it to the patch system,
> thanks.

Just did that, thanks!