[PATCH] lib: Consolidate DEBUG_STACK_USAGE option

[David Miller]

From: Stephen Boyd <sboyd at codeaurora.org>
Date: Fri,  6 May 2011 22:57:11 -0700

> Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way.
> Move it to lib/Kconfig.debug so each arch doesn't have to define
> it. This obviously makes the option generic, but that's fine
> because the config is already used in generic code.
> 
> It's not obvious to me that sysrq-P actually does anything
> different with this option enabled, but I erred on the side of
> caution by keeping the most inclusive wording.
> 
> Cc: linux-arch at vger.kernel.org
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: uclinux-dist-devel at blackfin.uclinux.org
> Cc: linux-m32r at ml.linux-m32r.org
> Cc: linux-mips at linux-mips.org
> Cc: linuxppc-dev at lists.ozlabs.org
> Cc: linux-sh at vger.kernel.org
> Cc: sparclinux at vger.kernel.org
> Cc: Chris Metcalf <cmetcalf at tilera.com>
> Cc: user-mode-linux-devel at lists.sourceforge.net
> Cc: x86 at kernel.org
> Signed-off-by: Stephen Boyd <sboyd at codeaurora.org>

Acked-by: David S. Miller <davem at davemloft.net>