From: Andrew Morton <akpm@linux-foundation.org>
To: Josh Law <hlcj1234567@gmail.com>
Cc: linux-kernel@vger.kernel.org, Josh Law <objecting@objecting.org>
Subject: Re: [PATCH 2/2] lib: glob: replace bitwise OR with logical operation on boolean
Date: Sun, 1 Mar 2026 11:25:42 -0800 [thread overview]
Message-ID: <20260301112542.0d915c2388febccf0294b880@linux-foundation.org> (raw)
In-Reply-To: <20260301152143.2572137-2-objecting@objecting.org>
On Sun, 1 Mar 2026 15:21:42 +0000 Josh Law <hlcj1234567@gmail.com> wrote:
> Using bitwise OR (|=) on a boolean variable is valid C, but replacing it with a direct logical assignment makes the intent clearer and appeases strict static analysis tools.
>
Fair enough.
> --- a/lib/glob.c
> +++ b/lib/glob.c
> @@ -96,7 +96,8 @@ bool __pure glob_match(char const *pat, char const *str)
> class += 2;
> /* Any special action if a > b? */
> }
> - match |= (a <= c && c <= b);
> + if (a <= c && c <= b)
> + match = true;
> } while ((a = *class++) != ']');
>
> if (match == inverted)
But if we're concerned about bool abuse, what's this?
bool match = false, inverted = (*pat == '!');
char const *class = pat + inverted;
next prev parent reply other threads:[~2026-03-01 19:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-01 15:21 [PATCH 1/2] lib: glob: add explicit include for export.h Josh Law
2026-03-01 15:21 ` [PATCH 2/2] lib: glob: replace bitwise OR with logical operation on boolean Josh Law
2026-03-01 19:25 ` Andrew Morton [this message]
2026-03-01 19:40 ` Josh Law
2026-03-01 19:43 ` Andrew Morton
2026-03-01 22:05 ` David Laight
2026-03-02 2:56 ` Kuan-Wei Chiu
2026-03-02 3:02 ` Kuan-Wei Chiu
2026-03-02 7:11 ` Josh Law
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