From 50374b96d2d30c03c8d42b3f8846d8938748d454 Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Wed, 14 Feb 2018 13:46:54 +0800 Subject: [PATCH] x86/apic: Remove the (now) unused disable_IO_APIC() function No one uses it anymore. Signed-off-by: Baoquan He Reviewed-by: Eric W. Biederman Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: douly.fnst@cn.fujitsu.com Cc: joro@8bytes.org Cc: prarit@redhat.com Cc: uobergfe@redhat.com Link: http://lkml.kernel.org/r/20180214054656.3780-5-bhe@redhat.com [ Rewrote the changelog. ] Signed-off-by: Ingo Molnar --- arch/x86/include/asm/io_apic.h | 1 - arch/x86/kernel/apic/io_apic.c | 13 ------------- arch/x86/kernel/machine_kexec_32.c | 5 ++--- arch/x86/kernel/machine_kexec_64.c | 5 ++--- 4 files changed, 4 insertions(+), 20 deletions(-) diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h index 2ae1b424c1bd..8018fc48f18d 100644 --- a/arch/x86/include/asm/io_apic.h +++ b/arch/x86/include/asm/io_apic.h @@ -192,7 +192,6 @@ static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg) extern void setup_IO_APIC(void); extern void enable_IO_APIC(void); -extern void disable_IO_APIC(void); extern void clear_IO_APIC(void); extern void restore_boot_irq_mode(void); extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin); diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 2d7cd2db77f5..9d86b10c2121 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -1438,19 +1438,6 @@ void native_disable_io_apic(void) disconnect_bsp_APIC(ioapic_i8259.pin != -1); } -/* - * Not an __init, needed by the reboot code - */ -void disable_IO_APIC(void) -{ - /* - * Clear the IO-APIC before rebooting: - */ - clear_IO_APIC(); - - restore_boot_irq_mode(); -} - void restore_boot_irq_mode(void) { if (!nr_legacy_irqs()) diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 4cd79d88a4ac..60cdec6628b0 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -195,9 +195,8 @@ void machine_kexec(struct kimage *image) /* * We need to put APICs in legacy mode so that we can * get timer interrupts in second kernel. kexec/kdump - * paths already have calls to disable_IO_APIC() in - * one form or other. kexec jump path also need - * one. + * paths already have calls to restore_boot_irq_mode() + * in one form or other. kexec jump path also need one. */ clear_IO_APIC(); restore_boot_irq_mode(); diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index 2ab14b9c1a89..5ffbc55ea80f 100644 --- a/arch/x86/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c @@ -293,9 +293,8 @@ void machine_kexec(struct kimage *image) /* * We need to put APICs in legacy mode so that we can * get timer interrupts in second kernel. kexec/kdump - * paths already have calls to disable_IO_APIC() in - * one form or other. kexec jump path also need - * one. + * paths already have calls to restore_boot_irq_mode() + * in one form or other. kexec jump path also need one. */ clear_IO_APIC(); restore_boot_irq_mode();