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authorAhmed S. Darwish <darwish.07@gmail.com>2008-02-18 00:59:54 +0200
committerIngo Molnar <mingo@elte.hu>2008-02-19 16:18:34 +0100
commit7c6357da1185d286adaa4452d829ac9b27c4d12f (patch)
tree083ea8780740a262fb55616b05ec7055f17fb73f /arch/x86/kernel/i8259_32.c
parent3f85d63ea4ff922f6abdb509f4aaf6993b3273a3 (diff)
x86: i8259A: remove redundant irq_descinitialization
Remove redundant irq_desc[NR_IRQS] element initialization in init_ISA_irqs(). irq_desc[NR_IRQS] is already statically initialized with the same values in kernel/irq/handle.c . besides the clean-up value this also saves some space: text data bss dec hex filename 1389 356 14 1759 6df i8259_32.o.before 1325 356 14 1695 69f i8259_32.o.after Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/i8259_32.c')
-rw-r--r--arch/x86/kernel/i8259_32.c25
1 files changed, 6 insertions, 19 deletions
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index 2d25b77102f..fe631967d62 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -26,8 +26,6 @@
* present in the majority of PC/AT boxes.
* plus some generic x86 specific things if generic specifics makes
* any sense at all.
- * this file should become arch/i386/kernel/irq.c when the old irq.c
- * moves to arch independent land
*/
static int i8259A_auto_eoi;
@@ -362,23 +360,12 @@ void __init init_ISA_irqs (void)
#endif
init_8259A(0);
- for (i = 0; i < NR_IRQS; i++) {
- irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].action = NULL;
- irq_desc[i].depth = 1;
-
- if (i < 16) {
- /*
- * 16 old-style INTA-cycle interrupts:
- */
- set_irq_chip_and_handler_name(i, &i8259A_chip,
- handle_level_irq, "XT");
- } else {
- /*
- * 'high' PCI IRQs filled in on demand
- */
- irq_desc[i].chip = &no_irq_chip;
- }
+ /*
+ * 16 old-style INTA-cycle interrupts:
+ */
+ for (i = 0; i < 16; i++) {
+ set_irq_chip_and_handler_name(i, &i8259A_chip,
+ handle_level_irq, "XT");
}
}