Messages in this thread | | | Subject | Re: [PATCH v2] usb: host: xhci: Support running urb giveback in tasklet context | From | Mathias Nyman <> | Date | Wed, 8 May 2019 15:04:33 +0300 |
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On 7.5.2019 19.02, Suwan Kim wrote: > On Mon, Apr 01, 2019 at 11:16:11PM +0900, Suwan Kim wrote: >> Patch "USB: HCD: support giveback of URB in tasklet context"[1] >> introduced giveback of urb in tasklet context. [1] This patch was >> applied to ehci but not xhci. [2] This patch significantly reduces >> the hard irq time of xhci. Especially for uvc driver, the hard irq >> including the uvc completion function runs quite long but applying >> this patch reduces the hard irq time of xhci. >> > > I sent this patch a month ago but got no answer. > Is there any feedback for this? > Please let me know if there are any faults or it needs more tests. >
I'll add this to a internal tree first, and let it sit there for a few weeks, trying to catch possible bugs this change could expose.
-Mathias
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