Message-ID: <e1be073e8e53da8dcdd9e37ffc6e60d1375c59bb.camel@perches.com>
Subject: Re: Infinite loop in checkpatch.pl
From:   Joe Perches <joe@perches.com>
To:     Alexander Potapenko <glider@google.com>, apw@canonical.com,
        dwaipayanray1@gmail.com, Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc:     LKML <linux-kernel@vger.kernel.org>
In-Reply-To: <CAG_fn=WZnBtRujLyhouz1AmerSKB71oPej442JDOw2OaORbWQg@mail.gmail.com>
References: <CAG_fn=WZnBtRujLyhouz1AmerSKB71oPej442JDOw2OaORbWQg@mail.gmail.com>
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Date:   Fri, 03 Mar 2023 08:52:57 -0800
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On Fri, 2023-03-03 at 15:28 +0100, Alexander Potapenko wrote:
> Hi folks,
> 
> I've noticed that checkpatch.pl chokes on the following file (also attached):
> 
> ==================================
> $ cat test-checkpatch.txt
> diff --git a/mm/kmsan/kmsan_test.c b/mm/kmsan/kmsan_test.c
> @@ -504,6 +504,25 @@ static void
> test_memcpy_aligned_to_unaligned2(struct kunit *test)
> + EXPECTATION_NO_REPORT(expect);                              \
> + volatile uint##size##_t uninit;                             \

checkpatch isn't a syntax complete c parser.  Don't expect to be.