linux-kernel - [PATCH 00/15] i2c: use 'time_left' with wait_for

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Message-ID: <20240427203611.3750-1-wsa+renesas@sang-engineering.com>
Date: Sat, 27 Apr 2024 22:35:52 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: linux-i2c@...r.kernel.org
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org,
	linux-omap@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH 00/15] i2c: use 'time_left' with wait_for_*

There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_*() causing patterns like:

        timeout = wait_for_completion_timeout(...)
        if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.

This is the I2C part of a tree-wide series. The rest of the patches can
be found here (slightly WIP):

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/time_left

Because these patches are generated, they need manual audit. So, I will
send them step by step. This is part 1 and also a call for opinions if
this is a desirable change. But at least in the I2C realm, I really want
to have it proper.

Build bot is happy with these patches and I also compile tested them
(except two). No functional changes intended.

Wolfram Sang (15):
  i2c: amd-mp2-plat: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: digicolor: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: exynos5: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: hix5hd2: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: imx-lpi2c: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: omap: use 'time_left' variable with wait_for_completion_timeout()
  i2c: st: use 'time_left' variable with wait_for_completion_timeout()
  i2c: stm32f4: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: stm32f7: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: synquacer: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: jz4780: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: qcom-geni: use 'time_left' variable with
    wait_for_completion_timeout()
  i2c: rk3x: use 'time_left' variable with wait_event_timeout()
  i2c: s3c2410: use 'time_left' variable with wait_event_timeout()
  i2c: pxa: use 'time_left' variable with wait_event_timeout()

-- 
2.43.0