diff options
| author |   Michael Ellerman <michael@ellerman.id.au> | 2007-08-28 18:47:55 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-09-14 01:33:20 +1000 |
| commit | 8528ab84ebe7a1eeed9b0acc808df86663d506c0 (patch) | |
| tree | b1037def36002586de1e366686376e29e451199d /arch | |
| parent | [POWERPC] Add an optional device_node pointer to the irq_host (diff) | |
| download | linux-dev-8528ab84ebe7a1eeed9b0acc808df86663d506c0.tar.xz linux-dev-8528ab84ebe7a1eeed9b0acc808df86663d506c0.zip | |
[POWERPC] Invert null match behaviour for irq_hosts
Currently if you don't specify a match callback for your irq_host it's
assumed you match everything. This is a kind of opt-out approach, and
turns out to be the exception rather than the rule.
So change the semantics to be opt-in, ie. you don't match anything unless
you provide a match callback. This in itself isn't very useful, but will
allow us to provide a default match implementation in a subsequent patch.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/celleb/interrupt.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/irq.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/interrupt.c | 7 |
4 files changed, 22 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 79b451247b89..30fb8e2c5c9d 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -523,7 +523,7 @@ struct irq_host *irq_find_host(struct device_node *node) */ spin_lock_irqsave(&irq_big_lock, flags); list_for_each_entry(h, &irq_hosts, link) - if (h->ops->match == NULL || h->ops->match(h, node)) { + if (h->ops->match != NULL && h->ops->match(h, node)) { found = h; break; } diff --git a/arch/powerpc/platforms/celleb/interrupt.c b/arch/powerpc/platforms/celleb/interrupt.c index 4ecdf06e421b..c7c68ca70c82 100644 --- a/arch/powerpc/platforms/celleb/interrupt.c +++ b/arch/powerpc/platforms/celleb/interrupt.c @@ -175,11 +175,18 @@ static int beatic_pic_host_xlate(struct irq_host *h, struct device_node *ct, return 0; } +static int beatic_pic_host_match(struct irq_host *h, struct device_node *np) +{ + /* Match all */ + return 1; +} + static struct irq_host_ops beatic_pic_host_ops = { .map = beatic_pic_host_map, .remap = beatic_pic_host_remap, .unmap = beatic_pic_host_unmap, .xlate = beatic_pic_host_xlate, + .match = beatic_pic_host_match, }; /* diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c index 36667460c922..701d9297c207 100644 --- a/arch/powerpc/platforms/iseries/irq.c +++ b/arch/powerpc/platforms/iseries/irq.c @@ -346,8 +346,15 @@ static int iseries_irq_host_map(struct irq_host *h, unsigned int virq, return 0; } +static int iseries_irq_host_match(struct irq_host *h, struct device_node *np) +{ + /* Match all */ + return 1; +} + static struct irq_host_ops iseries_irq_host_ops = { .map = iseries_irq_host_map, + .match = iseries_irq_host_match, }; /* diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c index 30b9f4c6eb55..3a6db04aa940 100644 --- a/arch/powerpc/platforms/ps3/interrupt.c +++ b/arch/powerpc/platforms/ps3/interrupt.c @@ -673,9 +673,16 @@ static int ps3_host_map(struct irq_host *h, unsigned int virq, return 0; } +static int ps3_host_match(struct irq_host *h, struct device_node *np) +{ + /* Match all */ + return 1; +} + static struct irq_host_ops ps3_host_ops = { .map = ps3_host_map, .unmap = ps3_host_unmap, + .match = ps3_host_match, }; void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq) |