x86: remove the write-only timer_uses_ioapic_pin_0
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>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 0d70acd..742fab4 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2114,8 +2114,6 @@
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
@@ -2155,9 +2153,6 @@
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 15dd871..15265ee 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -1176,8 +1176,7 @@
* 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_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);
