]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
authorHuacai Chen <chenhc@lemote.com>
Mon, 13 Aug 2012 12:52:24 +0000 (20:52 +0800)
committerRalf Baechle <ralf@linux-mips.org>
Thu, 13 Dec 2012 17:15:26 +0000 (18:15 +0100)
commit8add1ecb81f541ef2fcb0b85a5470ad9ecfb4a84
treef9d5c695530c2ce1a02bcb39585711afc0aaa8d3
parentb88fb18e7e0e17d517c5267de938c1a35a063a97
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.

When poweroff machine, kernel_power_off() call disable_nonboot_cpus().
And if we have HOTPLUG_CPU configured, disable_nonboot_cpus() is not an
empty function but attempt to actually disable the nonboot cpus. Since
system state is SYSTEM_POWER_OFF, play_dead() won't be called and thus
disable_nonboot_cpus() hangs. Therefore, we make this patch to avoid
poweroff failure.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Hongliang Tao <taohl@lemote.com>
Signed-off-by: Hua Yan <yanh@lemote.com>
Cc: Yong Zhang <yong.zhang@windriver.com>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4211/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/kernel/process.c