Re: [PATCH v3 05/11] mm, fsdax: Refactor memory-failure handler for dax mapping

[Christoph Hellwig]

On Wed, Feb 17, 2021 at 10:56:11AM +0800, Ruan Shiyang wrote:
> I'd like to confirm one thing...  I have checked all of this patchset by 
> checkpatch.pl and it did not report the overly long line warning.  So, I 
> should still obey the rule of 80 chars one line?

checkpatch.pl is completely broken, I would not rely on it.

Here is the quote from the coding style document:

"The preferred limit on the length of a single line is 80 columns.

Statements longer than 80 columns should be broken into sensible chunks,
unless exceeding 80 columns significantly increases readability and does
not hide information."