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From: Jeff Garzik <jeff@garzik.org>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>
Subject: Announce: gcc bogus warning repository
Date: Sun, 01 Oct 2006 09:44:55 -0400	[thread overview]
Message-ID: <451FC657.6090603@garzik.org> (raw)


The level of warnings in a kernel build has lately increased to the 
point where it is hiding bugs and otherwise making life difficult.

In particular, recent gcc versions throw warnings when it thinks a 
variable "MAY be used uninitialized", which is not terribly helpful due 
to the fact that most of these warnings are bogus.

For those that may find this valuable, I have started a git repo that 
silences these bogus warnings, after careful auditing of code paths to 
ensure that the warning truly is bogus.

The results may be found in the "gccbug" branch of
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git

This repository will NEVER EVER be pushed upstream.  It exists solely 
for those who want to decrease their build noise, thereby exposing true 
bugs.

The audit has already uncovered several minor bugs, lending credence to 
my theory that too many warnings hides bugs.



             reply	other threads:[~2006-10-01 13:44 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-01 13:44 Jeff Garzik [this message]
2006-10-01 13:56 ` Announce: gcc bogus warning repository Al Viro
2006-10-01 15:40 ` Daniel Walker
2006-10-01 18:12   ` Andrew Morton
2006-10-01 18:16     ` Jeff Garzik
2006-10-01 18:26       ` Daniel Walker
2006-10-01 18:45         ` Jeff Garzik
2006-10-01 18:58           ` Daniel Walker
2006-10-01 19:00             ` Al Viro
2006-10-01 19:03               ` Daniel Walker
2006-10-01 19:07                 ` Al Viro
2006-10-01 19:13                   ` Daniel Walker
2006-10-01 19:20                     ` Al Viro
2006-10-01 19:25                       ` Daniel Walker
2006-10-01 19:33                         ` Al Viro
2006-10-01 21:45                           ` Andrew Morton
2006-10-01 20:24     ` Roland Dreier
2006-10-02 11:39   ` linux-os (Dick Johnson)
2006-10-01 17:07 ` Randy Dunlap
2006-10-01 17:20   ` Jeff Garzik
2006-10-01 17:27     ` Alistair John Strachan
2006-10-01 17:45       ` Adrian Bunk
2006-10-01 18:16     ` Randy Dunlap
2006-10-04 16:19     ` Jörn Engel

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