From: Sakari Ailus <sakari.ailus@iki.fi>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Tianshu Qiu <tian.shu.qiu@intel.com>,
Shawn Tu <shawnx.tu@intel.com>, Bingbu Cao <bingbu.cao@intel.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Subject: Re: [PATCH v1 2/8] media: ov2740: Replace voodoo coding with understandle flow
Date: Fri, 11 Nov 2022 17:02:22 +0200 [thread overview]
Message-ID: <Y25j/rJWSYI1eT1E@valkosipuli.retiisi.eu> (raw)
In-Reply-To: <20220726120556.2881-2-andriy.shevchenko@linux.intel.com>
Hi Andy,
On Tue, Jul 26, 2022 at 03:05:50PM +0300, Andy Shevchenko wrote:
> Besides not being understandable at the first glance, the code
> might provoke a compiler or a static analyser tool to warn about
> out-of-bound access (when len == 0).
I've never seen one.
However the same pattern is repeatedly used by many, many drivers and
addressing just one doesn't make much sense.
The proper way to fix this would be to have a set of common CCI (Camera
Control Interface) functions that all drivers could use, and then switch
the drivers to use them.
This isn't currently a great fit for e.g. regmap but perhaps something
light on top of regmap-i2c could do the trick?
The rest of the set seems good to me.
--
Kind regards,
Sakari Ailus
next prev parent reply other threads:[~2022-11-11 15:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-26 12:05 [PATCH v1 1/8] media: ov2740: Remove duplicative pointer in struct nvm_data Andy Shevchenko
2022-07-26 12:05 ` [PATCH v1 2/8] media: ov2740: Replace voodoo coding with understandle flow Andy Shevchenko
2022-07-27 9:52 ` Cao, Bingbu
2022-11-11 15:02 ` Sakari Ailus [this message]
2022-11-11 15:30 ` Andy Shevchenko
2022-11-11 19:46 ` Sakari Ailus
2022-07-26 12:05 ` [PATCH v1 3/8] media: ov2740: Switch from __maybe_unused to pm_sleep_ptr() etc Andy Shevchenko
2022-07-26 12:05 ` [PATCH v1 4/8] media: ov2740: Remove duplicate check for NULL fwnode Andy Shevchenko
2022-07-27 9:41 ` Cao, Bingbu
2022-07-27 10:01 ` Cao, Bingbu
2022-07-26 12:05 ` [PATCH v1 5/8] media: ov2740: Drop redundant assignments of ret = 0 Andy Shevchenko
2022-07-26 12:05 ` [PATCH v1 6/8] media: ov2740: Switch to use dev_err_probe() Andy Shevchenko
2022-07-27 10:06 ` Cao, Bingbu
2022-07-26 12:05 ` [PATCH v1 7/8] media: ov2740: Add missed \n to the end of the messages Andy Shevchenko
2022-07-27 10:01 ` Cao, Bingbu
2022-07-26 12:05 ` [PATCH v1 8/8] media: ov2740: Use traditional pattern when checking error codes Andy Shevchenko
2022-08-23 14:10 ` [PATCH v1 1/8] media: ov2740: Remove duplicative pointer in struct nvm_data Andy Shevchenko
2022-11-11 12:05 ` Andy Shevchenko
2022-11-11 12:08 ` Andy Shevchenko
2022-11-11 14:58 ` Sakari Ailus
2022-11-11 15:29 ` Andy Shevchenko
2022-11-11 19:41 ` Sakari Ailus
2022-11-11 19:47 ` Andy Shevchenko
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