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Subject: TRACE_BRANCH_PROFILING breaks gcc warnings
From: Johannes Berg <johannes@sipsolutions.net>
To: Ingo Molnar <mingo@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Steven Rostedt <srostedt@redhat.com>
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Date: Wed, 15 Apr 2009 00:28:10 +0200
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With TRACE_BRANCH_PROFILING enabled you get "dummy may be used
uninitialised" with code like the following (and gcc 4.3.3):

void *dummy, *c;

if (a && (dummy =3D b()))
	c =3D dummy;

Therefore, allyesconfig has become useless for looking at warnings.

:(

johannes


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