Re: [PATCH v2 1/5] bug: When !CONFIG_BUG, simplify WARN_ON_ONCE and family

From: Arnd Bergmann
Date: Wed Feb 26 2014 - 08:25:18 EST


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@xxxxxxxxxxxxxxxx>

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
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