From: Tom Rix <trix@redhat.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: jlayton@kernel.org, bfields@fieldses.org,
viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] locks: remove trailing semicolon in macro definition
Date: Sun, 29 Nov 2020 09:47:18 -0800 [thread overview]
Message-ID: <8e7c0d56-64f3-d0b6-c1cf-9f285c59f169@redhat.com> (raw)
In-Reply-To: <20201127195323.GZ4327@casper.infradead.org>
On 11/27/20 11:53 AM, Matthew Wilcox wrote:
> On Fri, Nov 27, 2020 at 11:07:07AM -0800, trix@redhat.com wrote:
>> +++ b/fs/fcntl.c
>> @@ -526,7 +526,7 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
>> (dst)->l_whence = (src)->l_whence; \
>> (dst)->l_start = (src)->l_start; \
>> (dst)->l_len = (src)->l_len; \
>> - (dst)->l_pid = (src)->l_pid;
>> + (dst)->l_pid = (src)->l_pid
> This should be wrapped in a do { } while (0).
>
> Look, this warning is clearly great at finding smelly code, but the
> fixes being generated to shut up the warning are low quality.
>
Multiline macros not following the do {} while (0) pattern are likely a larger problem.
I'll take a look.
Thanks,
Tom
next prev parent reply other threads:[~2020-11-29 17:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-27 19:07 [PATCH] locks: remove trailing semicolon in macro definition trix
2020-11-27 19:53 ` Matthew Wilcox
2020-11-29 17:47 ` Tom Rix [this message]
2020-11-29 17:52 ` Randy Dunlap
2020-11-29 18:15 ` James Bottomley
2020-11-29 22:31 ` Joe Perches
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