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Date:   Thu, 25 Jul 2019 18:25:23 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Matteo Croce <mcroce@redhat.com>
Cc:     Joe Perches <joe@perches.com>, LKML <linux-kernel@vger.kernel.org>,
        Andy Whitcroft <apw@canonical.com>
Subject: Re: [PATCH v2] checkpatch.pl: warn on invalid commit id
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On Fri, 26 Jul 2019 03:17:32 +0200 Matteo Croce <mcroce@redhat.com> wrote:

> > > If .git is not found, the check is disabled
> > 
> > We could permit user to set an environment variable to tell checkpatch
> > where the kernel git tree resides.
> > 
> 
> Maybe GIT_DIR already does it.

Yes, that works.  GIT_DIR=<wherever>/.git