From: Roland Dreier <rdreier@cisco.com>
To: Al Viro <viro@ftp.linux.org.uk>
Cc: Ben Collins <ben.collins@ubuntu.com>,
Linus Torvalds <torvalds@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.20-rc1] ib_verbs: Use explicit if-else statements to avoid errors with do-while macros
Date: Wed, 13 Dec 2006 23:45:03 -0800 [thread overview]
Message-ID: <ada4pryq5ts.fsf@cisco.com> (raw)
In-Reply-To: <20061214065624.GN4587@ftp.linux.org.uk> (Al Viro's message of "Thu, 14 Dec 2006 06:56:24 +0000")
> IOW, do ; while(0) / do { } while (0) is not a proper way to do a macro
> that imitates a function returning void.
>
> Objections?
None from me, although the ternary ? : is a pretty odd way to write
if (blah)
do_this_void_function();
else
do_that_void_function();
so I'm in favor of that half of the patch anyway. It's my fault for
not noticing that part of the patch in the first place.
Changing the non-void ? : constructions is just churn, but there's no
sense changing it again now that the patch is merged.
- R.
next prev parent reply other threads:[~2006-12-14 7:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-14 3:10 [PATCH 2.6.20-rc1] ib_verbs: Use explicit if-else statements to avoid errors with do-while macros Ben Collins
2006-12-14 6:16 ` Roland Dreier
2006-12-14 6:44 ` Al Viro
2006-12-14 6:56 ` Al Viro
2006-12-14 7:45 ` Roland Dreier [this message]
2006-12-14 14:24 ` Ben Collins
2006-12-14 9:08 ` Andrew Morton
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