From: Andi Kleen <andi@firstfloor.org>
To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [PATCH] [0/23] Fix gcc 4.6 set but unused variable warnings
Date: Thu, 10 Jun 2010 13:10:35 +0200 (CEST) [thread overview]
Message-ID: <20100610110.764742110@firstfloor.org> (raw)
gcc 4.6 -Wall gained a new set but unused variable warning.
First it was incredibly noisy, but when looking at it in detail it
actually found some bugs.
I haven't tried to fix all occurrences, but
at least the major ones for my configuration.
If someone is interested more work would be possible
on this.
There are still some warnings left, but no flood
and there's really usually some code improvement.
In a few cases I simply shut up the compiler, but
in many other cases dead code is gone or a real
problem has been fixed.
Some of the changes need more review (especially marked
and with suitable cc), but most are straight forward.
I did not fix all bugs -- those that were too hard
are just commented with the warning left in.
I also marked areas that need more attention in
the individual patches.
Andrew, something for your tree?
-Andi
next reply other threads:[~2010-06-10 11:10 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-10 11:10 Andi Kleen [this message]
2010-06-10 11:10 ` [PATCH] [1/23] x86: percpu: Avoid warnings of unused variables in per cpu Andi Kleen
2010-06-10 11:14 ` Tejun Heo
2010-06-10 12:09 ` Ingo Molnar
2010-06-10 17:43 ` Justin P. Mattock
2010-06-10 18:10 ` Andi Kleen
2010-06-10 18:26 ` Justin P. Mattock
2010-06-10 20:10 ` Justin P. Mattock
2010-06-10 12:24 ` [tip:x86/urgent] percpu, x86: " tip-bot for Andi Kleen
2010-06-10 11:10 ` [PATCH] [2/23] IRQ: Move alloc_desk_mask variables inside ifdef Andi Kleen
2010-06-10 11:10 ` [PATCH] [3/23] x86: Avoid unused by set variables in rdmsr Andi Kleen
2010-06-10 11:10 ` [PATCH] [4/23] pagemap: Avoid unused-but-set variable Andi Kleen
2010-06-18 23:28 ` Andrew Morton
2010-06-19 7:44 ` Andi Kleen
2010-06-10 11:10 ` [PATCH] [5/23] x86 boot: Set ax register in boot vga query Andi Kleen
2010-06-10 17:13 ` H. Peter Anvin
2010-06-10 23:42 ` [tip:x86/urgent] x86, setup: " tip-bot for Andi Kleen
2010-06-10 11:10 ` [PATCH] [6/23] perf: Fix set but unused variables in perf Andi Kleen
2010-06-10 11:10 ` [PATCH] [7/23] x86: fix set but not read variables Andi Kleen
2010-06-10 11:10 ` [PATCH] [8/23] KGDB: Remove set but unused newPC Andi Kleen
2010-07-30 11:59 ` Jason Wessel
2010-06-10 11:10 ` [PATCH] [9/23] PRINTK: Use stable variable to dump kmsg buffer Andi Kleen
2010-06-10 11:10 ` [PATCH] [10/23] SCHED: Only allocate per cpu cpu mask buffer with offstack cpumasks Andi Kleen
2010-06-10 14:43 ` Peter Zijlstra
2010-06-10 14:52 ` Andi Kleen
2010-06-10 14:55 ` Peter Zijlstra
2010-06-10 15:06 ` Andi Kleen
2010-06-10 15:19 ` Peter Zijlstra
2010-06-10 15:34 ` Andi Kleen
2010-06-10 11:10 ` [PATCH] [11/23] KVM: Fix KVM_SET_SIGNAL_MASK Andi Kleen
2010-06-10 14:16 ` Avi Kivity
2010-06-10 11:10 ` [PATCH] [12/23] BTRFS: Clean up unused variables -- bugs Andi Kleen
2010-06-10 11:10 ` [PATCH] [13/23] BTRFS: Clean up unused variables -- nonbugs Andi Kleen
2010-06-10 11:10 ` [PATCH] [14/23] NFSD: Fix initialized but not read warnings Andi Kleen
2010-06-10 11:10 ` [PATCH] [15/23] EXT4: Fix initialized but not read variables Andi Kleen
2010-06-14 17:20 ` tytso
2010-06-10 11:10 ` [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Andi Kleen
2010-06-11 16:20 ` Christoph Hellwig
2010-06-11 16:36 ` Andi Kleen
2010-06-14 4:27 ` Dave Chinner
2010-06-14 7:43 ` Andi Kleen
2010-06-14 13:37 ` Dave Chinner
2010-06-14 14:37 ` Andi Kleen
2010-06-14 22:24 ` Dave Chinner
2010-06-15 7:02 ` Andi Kleen
2010-06-15 7:40 ` Christoph Hellwig
2010-06-15 7:46 ` Andi Kleen
2010-06-10 11:10 ` [PATCH] [17/23] EXT3: Fix set but unused variables Andi Kleen
2010-06-14 17:21 ` tytso
2010-06-14 17:27 ` tytso
2010-06-15 14:01 ` Jan Kara
2010-06-10 11:10 ` [PATCH] [18/23] ACPI: Fix unused but set variables in ACPI Andi Kleen
2010-06-10 11:10 ` [PATCH] [19/23] KVM: Fix unused but set warnings Andi Kleen
2010-06-10 14:19 ` Avi Kivity
2010-06-10 11:10 ` [PATCH] [20/23] MM: " Andi Kleen
2010-06-10 11:10 ` [PATCH] [21/23] kernel/*: " Andi Kleen
2010-06-10 11:10 ` [PATCH] [22/23] BLOCK: Fix unused but set variables in blk-merge Andi Kleen
2010-06-10 11:10 ` [PATCH] [23/23] FS: Fix unused but set warnings Andi Kleen
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