Re: [PATCH] scripts: add macro_checker script to check unused parameters in macros

[Joe Perches]

On Tue, 2024-07-23 at 05:11 -0400, Julian Sun wrote:
> Hi,
> 
> Recently, I saw a patch[1] on the ext4 mailing list regarding
> the correction of a macro definition error. Jan mentioned
> that "The bug in the macro is a really nasty trap...".
> Because existing compilers are unable to detect
> unused parameters in macro definitions. This inspired me
> to write a script to check for unused parameters in
> macro definitions and to run it.
> 

checkpatch has a similar test:

https://lkml.kernel.org/r/20240507032757.146386-3-21cnbao@xxxxxxxxx

$ git log --format=email -1 b1be5844c1a0124a49a30a20a189d0a53aa10578