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From: Sergey Shtylyov <s.shtylyov@auroraos.dev>
To: Hans de Goede <hansg@kernel.org>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Ricardo Ribalda <ribalda@chromium.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
	<linux-media@vger.kernel.org>
Subject: Re: [PATCH] media: uvcvideo: drop useless assignment in uvc_parse_format()
Date: Tue, 29 Sep 2026 17:25:35 +0300	[thread overview]
Message-ID: <9459e152-e7b3-4d00-b511-089ff7ec70ce@auroraos.dev> (raw)
In-Reply-To: <206c3a0e-013c-4350-aa70-eac96e045784@kernel.org>

On 9/29/26 12:16 PM, Hans de Goede wrote:

[...]

>>>> Close to the end of uvc_parse_format(), the parameter buflen is decremented
>>>> (again) but that statement seems pointless as buflen isn't used afterwards.
>>>> Drop the useless assignment (gcc doesn't generate any code for it anyways).
>>>
>>> The patch is correct, although I do not see a great benefit in
>>> removing it. As you say, the compiler will remove it anyway. If we
>>> modify the function to add logging or continue parsing the left over
>>> buffer, it is going to come back to haunt us....
>>>
>>> I leave it to Laurent or HansG to decide if they want to merge it.
>>
>> I'd rather keep the buflen update in place for the reasons explained by
>> Ricardo.
>>
>> /me wishes for std::span<> in C
> 
> Ack, I've dropped this patch from patchwork.

   OK, but why "Not Applicable" and not "Rejected"? :-)

> Regards,
> 
> Hans
[...]

MBR, Sergey


      reply	other threads:[~2026-09-29 14:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-20 20:11 [PATCH] media: uvcvideo: drop useless assignment in uvc_parse_format() Sergey Shtylyov
2026-08-20 20:15 ` Sergey Shtylyov
2026-08-27  9:24 ` Ricardo Ribalda
2026-09-28 20:29   ` Laurent Pinchart
2026-09-29  9:16     ` Hans de Goede
2026-09-29 14:25       ` Sergey Shtylyov [this message]

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