linux-kernel - [PATCH v4 0/3] i2c: pcf8584: Fix errors reported by checkpatch.pl

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Message-ID: <20250917133524.85063-1-chiru.cezar.89@gmail.com>
Date: Wed, 17 Sep 2025 16:35:21 +0300
From: Cezar Chiru <chiru.cezar.89@...il.com>
To: andi.shyti@...nel.org
Cc: linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Cezar Chiru <chiru.cezar.89@...il.com>
Subject: [PATCH v4 0/3] i2c: pcf8584: Fix errors reported by checkpatch.pl

Hello maintainers,

This patch series fixes 18 errors reported by checkpatch.pl on 
drivers/i2c/algos/i2c-algo-pcf.c file.

The series PATCH v1 to PATCH v4 is a response to the discussion on the mailing
list with Markus Elfring who had comments on my earlier submissions. 
He suggested:
 -to split my initial submission in a patch series
 -had some valid points on imperative mood usage in commit messages
 -wrapping commit message to 75 columns per line
 -change some of the commit message to point usage of checkpatch.pl

Here is a brief summary and order of patches to be applied:

Patch 1/3: i2c: pcf8584: Fix debug macros defines of if statements
This patch encloses the debug macro defines of if statements in do-while
loops.

Patch 2/3: i2c: pcf8584: Fix do not use assignment inside if conditional
This patch takes the assignement from if conditional and moves it by 1 line
up.

Patch 3/3: i2c: pcf8584: Fix space(s) required before or after different
           operators
This patch adds space(s) around, before or after some binary operators
and punctuation marks.

Testing:
   *built kernel and modules with I2C_ALGOPCF=m and my 3 patches applied on
   top of 6.17.0-rc6.
   *installed kernel and external modules generated by build on my laptop
   *rebooted and loaded i2c-algo-pcf.ko with param i2c_debug=2/3/9.
   *No success message related to i2c_algo_pcf was seen in dmesg but also no
   errors.
   *Module loading and unloading successful.
   *No PCF8584 Hardware was available.

Patches 1 and 3 report 4 and 6 warnings when running checkpatch on them.
They appeared because of two errors/warnings on the same line of code.
But the warnings will be fixed in a new patchset that addresses fixing 
warnings.

Cezar Chiru (3):
  i2c: pcf8584: Fix debug macros defines of if statements
  i2c: pcf8584: Fix do not use assignment inside if conditional
  i2c: pcf8584: Fix space(s) required before or after different
    operators

 drivers/i2c/algos/i2c-algo-pcf.c | 62 ++++++++++++++++++++------------
 1 file changed, 39 insertions(+), 23 deletions(-)

-- 
2.43.0