diff options
| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2005-06-21 17:16:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 19:07:32 -0700 |
| commit | b77d6adc922b8bbf8b16b67f567958c42962cf88 (patch) | |
| tree | 6d212543f10d0330b73ec3932d17c97a1da56bdf | |
| parent | faec1e99ba9ca7371d9aee1656938373133c4b21 (diff) | |
[PATCH] uml: make hw_controller_type->release exist only for archs needing it
With Chris Wedgwood <cw@f00f.org>
As suggested by Chris, we can make the "just added" method ->release
conditional to UML only (better: to archs requesting it, i.e. only UML
currently), so that other archs don't get this unneeded crud, and if UML
won't need it any more we can kill this.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
CC: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/um/Kconfig | 5 | ||||
| -rw-r--r-- | include/linux/irq.h | 3 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 4 |
3 files changed, 12 insertions, 0 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig index c5292181a664..b8e952c88fd1 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -35,6 +35,11 @@ config GENERIC_CALIBRATE_DELAY bool default y +# Used in kernel/irq/manage.c and include/linux/irq.h +config IRQ_RELEASE_METHOD + bool + default y + menu "UML-specific options" config MODE_TT diff --git a/include/linux/irq.h b/include/linux/irq.h index b68ad80e2464..7fc1022be9ee 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -47,7 +47,10 @@ struct hw_interrupt_type { void (*ack)(unsigned int irq); void (*end)(unsigned int irq); void (*set_affinity)(unsigned int irq, cpumask_t dest); + /* Currently used only by UML, might disappear one day.*/ +#ifdef CONFIG_IRQ_RELEASE_METHOD void (*release)(unsigned int irq, void *dev_id); +#endif }; typedef struct hw_interrupt_type hw_irq_controller; diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 5fde8177eedf..ac6700985705 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -6,6 +6,7 @@ * This file contains driver APIs to the irq subsystem. */ +#include <linux/config.h> #include <linux/irq.h> #include <linux/module.h> #include <linux/random.h> @@ -256,8 +257,11 @@ void free_irq(unsigned int irq, void *dev_id) /* Found it - now remove it from the list of entries */ *pp = action->next; + /* Currently used only by UML, might disappear one day.*/ +#ifdef CONFIG_IRQ_RELEASE_METHOD if (desc->handler->release) desc->handler->release(irq, dev_id); +#endif if (!desc->action) { desc->status |= IRQ_DISABLED; |