Re: [PATCH v2 08/27] i2c: busses: remove memset after dmam_alloc_coherent

[Jarkko Nikula]

Hi

On 6/28/19 5:47 AM, Fuqian Huang wrote:
> In commit af7ddd8a627c
> ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),
> dmam_alloc_coherent has already zeroed the memory.
> So memset is not needed.
>
> Signed-off-by: Fuqian Huang <huangfq.daxian@xxxxxxxxx>
> ---
>   drivers/i2c/busses/i2c-ismt.c | 2 --
>   1 file changed, 2 deletions(-)
It would be better to refer actual commit or commits that implement that 
zeroing rather than merge point in commit log if possible.

At quick look commit 518a2f1925c3 ("dma-mapping: zero memory returned 
from dma_alloc_*") is the one but I'm not really an expert here to say 
is that alone enough.

--
Jarkko