diff options
Diffstat (limited to 'drivers/pci/dwc/pcie-designware-host.c')
| -rw-r--r-- | drivers/pci/dwc/pcie-designware-host.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c index 5ba334938b52..aece2962defc 100644 --- a/drivers/pci/dwc/pcie-designware-host.c +++ b/drivers/pci/dwc/pcie-designware-host.c @@ -56,24 +56,25 @@ static struct irq_chip dw_msi_irq_chip = { /* MSI int handler */ irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) { - unsigned long val; + u32 val; int i, pos, irq; irqreturn_t ret = IRQ_NONE; for (i = 0; i < MAX_MSI_CTRLS; i++) { dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4, - (u32 *)&val); - if (val) { - ret = IRQ_HANDLED; - pos = 0; - while ((pos = find_next_bit(&val, 32, pos)) != 32) { - irq = irq_find_mapping(pp->irq_domain, - i * 32 + pos); - dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + - i * 12, 4, 1 << pos); - generic_handle_irq(irq); - pos++; - } + &val); + if (!val) + continue; + + ret = IRQ_HANDLED; + pos = 0; + while ((pos = find_next_bit((unsigned long *) &val, 32, + pos)) != 32) { + irq = irq_find_mapping(pp->irq_domain, i * 32 + pos); + dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, + 4, 1 << pos); + generic_handle_irq(irq); + pos++; } } |