Messages in this thread Patch in this message | | | Date | Mon, 17 Mar 2008 22:29:32 +0200 | From | Adrian Bunk <> | Subject | [2.6 patch] x86: remove the write-only timer_uses_ioapic_pin_0 |
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This patch removes the write-only timer_uses_ioapic_pin_0 (gsi can't be <= 15 in the line of it's fake usage in mpparse_32.c).
Spotted by the GNU C compiler.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
---
arch/x86/kernel/io_apic_32.c | 5 ----- arch/x86/kernel/mpparse_32.c | 3 +-- include/asm-x86/io_apic.h | 1 - 3 files changed, 1 insertion(+), 8 deletions(-)
5869ec6906fdb6d786284c599c862061f601ac6a diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 4ca5486..fb1e378 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -2156,8 +2156,6 @@ static inline void unlock_ExtINT_logic(void) ioapic_write_entry(apic, pin, entry0); } -int timer_uses_ioapic_pin_0; - /* * This code may look a bit paranoid, but it's supposed to cooperate with * a wide range of boards and BIOS bugs. Fortunately only the timer IRQ @@ -2197,9 +2195,6 @@ static inline void __init check_timer(void) pin2 = ioapic_i8259.pin; apic2 = ioapic_i8259.apic; - if (pin1 == 0) - timer_uses_ioapic_pin_0 = 1; - printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n", vector, apic1, pin1, apic2, pin2); diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c index f349e68..07c5ee2 100644 --- a/arch/x86/kernel/mpparse_32.c +++ b/arch/x86/kernel/mpparse_32.c @@ -1115,8 +1115,7 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity) * So test for this condition, and if necessary, avoid * the pin collision. */ - if (gsi > 15 || (gsi == 0 && !timer_uses_ioapic_pin_0)) - gsi = pci_irq++; + gsi = pci_irq++; /* * Don't assign IRQ used by ACPI SCI */ diff --git a/include/asm-x86/io_apic.h b/include/asm-x86/io_apic.h index 0f5b3fe..095e8e3 100644 --- a/include/asm-x86/io_apic.h +++ b/include/asm-x86/io_apic.h @@ -146,7 +146,6 @@ extern int io_apic_get_version(int ioapic); extern int io_apic_get_redir_entries(int ioapic); extern int io_apic_set_pci_routing(int ioapic, int pin, int irq, int edge_level, int active_high_low); -extern int timer_uses_ioapic_pin_0; #endif /* CONFIG_ACPI */ extern int (*ioapic_renumber_irq)(int ioapic, int irq);
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