diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c index 7dee4ebaf5a9..c12d0c33557c 100644 --- a/drivers/net/ipa/ipa_interrupt.c +++ b/drivers/net/ipa/ipa_interrupt.c @@ -79,6 +79,7 @@ static void ipa_interrupt_process_all(struct ipa_interrupt *interrupt) { struct ipa *ipa = interrupt->ipa; u32 enabled = interrupt->enabled; + u32 pending; u32 offset; u32 mask; @@ -87,8 +88,8 @@ static void ipa_interrupt_process_all(struct ipa_interrupt *interrupt) * only the enabled ones. */ offset = ipa_reg_irq_stts_offset(ipa->version); - mask = ioread32(ipa->reg_virt + offset); - while ((mask &= enabled)) { + pending = ioread32(ipa->reg_virt + offset); + while ((mask = pending & enabled)) { do { u32 irq_id = __ffs(mask); @@ -96,7 +97,17 @@ static void ipa_interrupt_process_all(struct ipa_interrupt *interrupt) ipa_interrupt_process(interrupt, irq_id); } while (mask); - mask = ioread32(ipa->reg_virt + offset); + pending = ioread32(ipa->reg_virt + offset); + } + + /* If any disabled interrupts are pending, clear them */ + if (pending) { + struct device *dev = &ipa->pdev->dev; + + dev_dbg(dev, "clearing disabled IPA interrupts 0x%08x\n", + pending); + offset = ipa_reg_irq_clr_offset(ipa->version); + iowrite32(pending, ipa->reg_virt + offset); } }