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authorYinghai Lu <yhlu.kernel@gmail.com>2008-08-19 20:50:05 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-16 16:52:29 +0200
commit08678b0841267c1d00d771fe01548d86043d065e (patch)
tree7debb21f9e9a768ced43077f7376797a0c46f8c0 /kernel/irq/autoprobe.c
parentbfea1238beac9d306eeac081c67de5ca6aec4c7a (diff)
downloadlinux-2.6.34-ux500-08678b0841267c1d00d771fe01548d86043d065e.tar.gz
generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[]
add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/autoprobe.c')
-rw-r--r--kernel/irq/autoprobe.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index c689e9851a8..c45ab718cf0 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -39,7 +39,7 @@ unsigned long probe_irq_on(void)
* flush such a longstanding irq before considering it as spurious.
*/
for (i = nr_irqs-1; i > 0; i--) {
- desc = irq_desc + i;
+ desc = irq_to_desc(i);
spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
@@ -69,7 +69,7 @@ unsigned long probe_irq_on(void)
* happened in the previous stage, it may have masked itself)
*/
for (i = nr_irqs-1; i > 0; i--) {
- desc = irq_desc + i;
+ desc = irq_to_desc(i);
spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
@@ -92,7 +92,7 @@ unsigned long probe_irq_on(void)
for (i = 0; i < nr_irqs; i++) {
unsigned int status;
- desc = irq_desc + i;
+ desc = irq_to_desc(i);
spin_lock_irq(&desc->lock);
status = desc->status;
@@ -131,7 +131,7 @@ unsigned int probe_irq_mask(unsigned long val)
mask = 0;
for (i = 0; i < nr_irqs; i++) {
- struct irq_desc *desc = irq_desc + i;
+ struct irq_desc *desc = irq_to_desc(i);
unsigned int status;
spin_lock_irq(&desc->lock);
@@ -174,7 +174,7 @@ int probe_irq_off(unsigned long val)
int i, irq_found = 0, nr_irqs = 0;
for (i = 0; i < nr_irqs; i++) {
- struct irq_desc *desc = irq_desc + i;
+ struct irq_desc *desc = irq_to_desc(i);
unsigned int status;
spin_lock_irq(&desc->lock);