linux-kernel - Re: [PATCH 03/16] lib/test_bitmap: don't test bitmap

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Message-ID: <YtXL1Bq/f2Ci1fYP@smile.fi.intel.com>
Date:   Tue, 19 Jul 2022 00:08:36 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        Alexander Lobakin <alexandr.lobakin@...el.com>,
        Alexei Starovoitov <ast@...nel.org>,
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        Christoph Lameter <cl@...ux.com>,
        Dan Williams <dan.j.williams@...el.com>,
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Subject: Re: [PATCH 03/16] lib/test_bitmap: don't test bitmap_set if nbits ==
 0

On Mon, Jul 18, 2022 at 12:28:31PM -0700, Yury Norov wrote:
> Don't test bitmap_set(bitmap, start, 0) as it's useless, most probably
> a sign of error in real code, and makes CONFIG_DEBUG_BITMAP barking.

No, the test of not useful and sign of an error is a good thing to test!
Test cases may be positive, may be negative. Code shouldn't fail badly because
of that.

I tend to give a NAK here.

-- 
With Best Regards,
Andy Shevchenko