netdev - Re: [GIT] Networking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+55aFzZe2buU-LxAktxYNojuvMbUNt64QiKDpGsfFwtrbf+Qg@mail.gmail.com>
Date:	Thu, 3 Sep 2015 11:31:40 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	David Miller <davem@...emloft.net>
Cc:	Lorenzo Bianconi <lorenzo.bianconi83@...il.com>,
	Johannes Berg <johannes.berg@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Network Development <netdev@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT] Networking

On Thu, Sep 3, 2015 at 11:22 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> [-Wsizeof-array-argument]

Ahh. Google shows that it's an old clang warning that gcc has recently
picked up.

But even clang doesn't seem to have any way for a project to say
"please warn about arrays in function argument declaration". It *is*
very traditional idiomatic C, it's just that I personally think it's
one of those bad traditional C things exactly because it's so
misleading about what actually goes on. But I guess that in practice,
the only thing that it actually *affects* is "sizeof" (and assignment
to the variable name - something that would be invalid for a real
array, but works on argument arrays because they are really just
pointers).

The "array as function argument" syntax is occasionally useful
(particularly for the multi-dimensional array case), so I very much
understand why it exists, I just think that in the kernel we'd be
better off with the rule that it's against our coding practices.

                  Linus
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html