aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/cell/axon_msi.c
diff options
context:
space:
mode:
authorMilton Miller <miltonm@bga.com>2011-05-10 19:30:33 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-19 15:31:57 +1000
commit9553361499f9f9e8ca8c9dae2e103f651fa48217 (patch)
treebb96161231f4ff21805491238306f220c34cf99c /arch/powerpc/platforms/cell/axon_msi.c
parent6b0aea44d6b36b52010d206be69ce37c2f4f1bd1 (diff)
powerpc/axon_msi: Validate msi irq via chip_data
Instead of checking for rogue msi numbers via the irq_map host field set the chip_data to h.host_data (which is the msic struct pointer) at map and compare it in get_irq. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/axon_msi.c')
-rw-r--r--arch/powerpc/platforms/cell/axon_msi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 1e3329e8578b..ac06903e136a 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -113,7 +113,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
pr_devel("axon_msi: woff %x roff %x msi %x\n",
write_offset, msic->read_offset, msi);
- if (msi < NR_IRQS && virq_to_host(msi) == msic->irq_host) {
+ if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) {
generic_handle_irq(msi);
msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
} else {
@@ -320,6 +320,7 @@ static struct irq_chip msic_irq_chip = {
static int msic_host_map(struct irq_host *h, unsigned int virq,
irq_hw_number_t hw)
{
+ irq_set_chip_data(virq, h->host_data);
irq_set_chip_and_handler(virq, &msic_irq_chip, handle_simple_irq);
return 0;

Privacy Policy