]> git.baikalelectronics.ru Git - kernel.git/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)
commit7a121cd6622f785854ebcf83bb812e6647f8addb
tree661bcbb5bdd52f8340747afb9edd3683d90cdff3
parent09342c01f4eb2348195413863e43eb6554514590
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