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authorBaoquan He <bhe@redhat.com>2018-02-14 13:46:51 +0800
committerIngo Molnar <mingo@kernel.org>2018-02-17 11:47:29 +0100
commitce279cdc04aafd5c41ae49f941ee2c3342e35e3e (patch)
tree259658c3b7228398c04541b50a330d39cefe4b3e /arch/x86/kernel/apic/io_apic.c
parentb753a2b79a5bbad35dfaf8d3dba964727c30654a (diff)
x86/apic: Split out restore_boot_irq_mode() from disable_IO_APIC()
This is a preparation patch. Split out the code which restores boot irq mode from disable_IO_APIC() into the new restore_boot_irq_mode() function. No functional changes. Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: douly.fnst@cn.fujitsu.com Cc: joro@8bytes.org Cc: prarit@redhat.com Cc: uobergfe@redhat.com Link: http://lkml.kernel.org/r/20180214054656.3780-2-bhe@redhat.com [ Build fix for !CONFIG_IO_APIC and rewrote the changelog. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apic/io_apic.c')
-rw-r--r--arch/x86/kernel/apic/io_apic.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 8ad2e410974f..7b73b6b9b4b6 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1448,6 +1448,11 @@ void disable_IO_APIC(void)
*/
clear_IO_APIC();
+ restore_boot_irq_mode();
+}
+
+void restore_boot_irq_mode(void)
+{
if (!nr_legacy_irqs())
return;