On Thu, 2013-08-22 at 14:45 -0700, Brian Norris wrote:
> Hello,
Hello.
> I have received what appears to be a false warning from checkpatch.pl when
> checking a patch named 'b':
>
> $ scripts/checkpatch.pl b
> WARNING: patch prefix 'b' exists, appears to be a -p0 patch
>
> total: 0 errors, 1 warnings, 16 lines checked
>
> b has style problems, please review.
>
> If any of these errors are false positives, please report
> them to the maintainer, see CHECKPATCH in MAINTAINERS.
>
> It appears that I can trigger this warning with any arbitrary commit. The
> following bash script gives me at least one warning for everything in Linus'
> tree:
>
> for i in {0..100}
> do
> git format-patch -1 HEAD~$i --stdout > b
> scripts/checkpatch.pl b
> done
>
> I have also seen this warning on patches with other names, but I'm not
> reproducing that right now.
checkpatch can use stdin as well as files/patches.
Try this instead of creating a temporary file:
for i in {0..100}
do
git format-patch -1 --stdout HEAD~$1 | ./scripts/checkpatch.pl -
done
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