On Mon, 28 Sep 2020 at 09:35, Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote: > > + Uffe > > On 9/27/2020 9:49 PM, Thomas Gleixner wrote: > > @@ -85,7 +85,7 @@ static void brcmf_sdiod_ib_irqhandler(st > > > > brcmf_dbg(INTR, "IB intr triggered\n"); > > > > - brcmf_sdio_isr(sdiodev->bus); > > + brcmf_sdio_isr(sdiodev->bus, false); > > } > > Hi Uffe, > > I assume the above code is okay, but want to confirm. Is the SDIO > interrupt guaranteed to be on a worker thread? Correct. As a matter of fact, the sdio irqs can be delivered through a couple of different paths. The legacy (scheduled for removal), is from a dedicated kthread. The more "modern" way is either from the context of a threaded IRQ handler or via a workqueue. However, there are also so-called out of band SDIO irqs, typically routed via a separate GPIO line. This isn't managed by the MMC/SDIO subsystem, but the SDIO functional driver itself. Kind regards Uffe
