On Wed, Nov 16, 2011 at 11:46 AM, Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx> wrote: > On Wed, Nov 16, 2011 at 11:09 AM, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote: >> + /* >> + * Some devices can generate interrupts with empty CSR register, we >> + * "handle" such irq's to prevent interrupt controller treat them as >> + * spurious interrupts and disable irq line. >> + */ >> if (!reg) >> - return IRQ_NONE; >> + return IRQ_HANDLED; > > What if this interrupt belongs to a different device on a shared interrupt line? > In case reg is zero we can't be sure our device generated this interrupt, right? In the bugzilla report Stanislaw indicated that even when rt2800pci indicates IRQ_HANDLED, all other drivers on the same interruptline will still get the interrupt event. Ivo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
