]> err.no Git - linux-2.6/commit
x86_32: remove unnecessary use of %ebx as the boot cpu flag
authorIan Campbell <ijc@hellion.org.uk>
Wed, 30 Jan 2008 12:33:27 +0000 (13:33 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:33:27 +0000 (13:33 +0100)
commit503595010f2024b236fd2636a7318fe64c794d6c
tree661bcbb5bdd52f8340747afb9edd3683d90cdff3
parent4323838215184f5a2f081e0d17b8d60731b03164
x86_32: remove unnecessary use of %ebx as the boot cpu flag

Currently in head_32.S there are two ways we test to see if we
are the boot cpu.  By looking at %ebx and by looking at the
static variable ready.  When changing things around I have
found that it gets tricky to preserve %ebx.  So this
patch just switches head.S over to the more reliable
test of always using ready.

Hopefully later we can kill these tests entirely.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Mika Penttilä <mika.penttila@kolumbus.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/head_32.S