linux-kernel - Re: [PATCH] [media] vcodec: mediatek: Remove double parentheses

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Date:   Mon, 3 Apr 2017 10:35:34 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Matthias Kaehlcke <mka@...omium.org>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Hans Verkuil <hans.verkuil@...co.com>,
        PoChun Lin <pochun.lin@...iatek.com>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Arnd Bergmann <arnd@...db.de>, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] vcodec: mediatek: Remove double parentheses

On 04/01/2017 01:58 AM, Matthias Kaehlcke wrote:
> El Fri, Mar 17, 2017 at 02:01:33PM -0700 Matthias Kaehlcke ha dit:
> 
>> The extra pairs of parentheses are not needed and cause clang
>> warnings like this:
>>
>> drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c:158:32: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality]
>>                 if ((inst->work_bufs[i].size == 0))
>>                      ~~~~~~~~~~~~~~~~~~~~~~~~^~~~
>> drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c:158:32: note: remove extraneous parentheses around the comparison to silence this warning
>>                 if ((inst->work_bufs[i].size == 0))
>>                     ~                        ^   ~
>> drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c:158:32: note: use '=' to turn this equality comparison into an assignment
>>                 if ((inst->work_bufs[i].size == 0))
>>                                              ^~
>>                                              =
>>
>> Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
>> ---
>>  drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
>> index 544f57186243..129cc74b4fe4 100644
>> --- a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
>> +++ b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
>> @@ -155,7 +155,7 @@ static void vp8_enc_free_work_buf(struct venc_vp8_inst *inst)
>>  
>>  	/* Buffers need to be freed by AP. */
>>  	for (i = 0; i < VENC_VP8_VPU_WORK_BUF_MAX; i++) {
>> -		if ((inst->work_bufs[i].size == 0))
>> +		if (inst->work_bufs[i].size == 0)
>>  			continue;
>>  		mtk_vcodec_mem_free(inst->ctx, &inst->work_bufs[i]);
>>  	}
>> @@ -172,7 +172,7 @@ static int vp8_enc_alloc_work_buf(struct venc_vp8_inst *inst)
>>  	mtk_vcodec_debug_enter(inst);
>>  
>>  	for (i = 0; i < VENC_VP8_VPU_WORK_BUF_MAX; i++) {
>> -		if ((wb[i].size == 0))
>> +		if (wb[i].size == 0)
>>  			continue;
>>  		/*
>>  		 * This 'wb' structure is set by VPU side and shared to AP for
> 
> Ping? Any feedback on this patch?
> 
> Cheers
> 
> Matthias
> 

It's part of a pull request that is waiting to be merged. Just be patient.

Regards,

	Hans