From: Arnd Bergmann <arnd@arndb.de>
To: Josh Triplett <josh@joshtriplett.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/5] bug: When !CONFIG_BUG, simplify WARN_ON_ONCE and family
Date: Wed, 26 Feb 2014 14:24:59 +0100 [thread overview]
Message-ID: <201402261424.59875.arnd@arndb.de> (raw)
In-Reply-To: <469b5dc113cb468232291527642f8dc47663e945.1393385236.git.josh@joshtriplett.org>
On Wednesday 26 February 2014, Josh Triplett wrote:
> When !CONFIG_BUG, WARN_ON and family become simple passthroughs of their
> condition argument; however, WARN_ON_ONCE and family still have
> conditions and a boolean to detect one-time invocation, even though the
> warning they'd emit doesn't exist. Make the existing definitions
> conditional on CONFIG_BUG, and add definitions for !CONFIG_BUG that map
> to the passthrough versions of WARN and WARN_ON.
>
> This saves 4.4k on a minimized configuration (smaller than
> allnoconfig), and 20.6k with defconfig plus CONFIG_BUG=n.
>
> Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
prev parent reply other threads:[~2014-02-26 13:25 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-26 3:48 [PATCH v2 1/5] bug: When !CONFIG_BUG, simplify WARN_ON_ONCE and family Josh Triplett
2014-02-26 3:48 ` [PATCH v2 2/5] include/asm-generic/bug.h: Style fix: s/while(0)/while (0)/ Josh Triplett
2014-02-26 13:25 ` Arnd Bergmann
2014-02-26 3:49 ` [PATCH v2 3/5] bug: When !CONFIG_BUG, make WARN call no_printk to check format and args Josh Triplett
2014-02-26 13:25 ` Arnd Bergmann
2014-02-26 3:49 ` [PATCH v2 4/5] bug: Use a common definition of BUG_ON regardless of CONFIG_BUG Josh Triplett
2014-02-26 13:26 ` Arnd Bergmann
2014-02-26 3:49 ` [PATCH v2 5/5] bug: Make BUG() call unreachable() Josh Triplett
2014-02-26 13:29 ` Arnd Bergmann
2014-02-26 14:58 ` Josh Triplett
2014-02-27 19:19 ` Arnd Bergmann
2014-02-28 0:16 ` Josh Triplett
2014-02-28 8:55 ` Arnd Bergmann
2014-03-10 1:00 ` [PATCH v3 1/5] bug: When !CONFIG_BUG, simplify WARN_ON_ONCE and family Josh Triplett
2014-03-10 1:01 ` [PATCH v3 2/5] include/asm-generic/bug.h: Style fix: s/while(0)/while (0)/ Josh Triplett
2014-03-10 1:02 ` [PATCH v3 3/5] bug: When !CONFIG_BUG, make WARN call no_printk to check format and args Josh Triplett
2014-03-10 1:02 ` [PATCH v3 4/5] bug: Make BUG() always stop the machine Josh Triplett
2014-03-10 1:03 ` [PATCH v3 5/5] x86: Always define BUG() and HAVE_ARCH_BUG, even with !CONFIG_BUG Josh Triplett
2014-03-11 16:40 ` [PATCH v3 1/5] bug: When !CONFIG_BUG, simplify WARN_ON_ONCE and family Arnd Bergmann
2014-03-11 17:49 ` Josh Triplett
2014-02-26 13:24 ` Arnd Bergmann [this message]
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