| Message ID | 20231026-dwc3-v1-1-643c74771599@chromium.org |
|---|---|
| State | New |
| Headers | show |
| Series | usb: dwc3: set the dma max_seg_size | expand |
On Thu, Oct 26, 2023 at 12:28:36PM +0000, Ricardo Ribalda wrote: > Allow devices to have dma operations beyond 4K, and avoid warnings such > as: > > DMA-API: dwc3 a600000.usb: mapping sg segment longer than device claims to support [len=86016] [max=65536] > > Reported-by: Zubin Mithra <zsm@chromium.org> > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> > --- > Found while running > yavta -f YUYV -s 1280x720 -c /dev/video0 > > with: > > CONFIG_DMA_API_DEBUG=y > --- > drivers/usb/dwc3/core.c | 2 ++ > 1 file changed, 2 insertions(+) What commit id does this fix? thanks, greg k-h
On Fri, Oct 27, 2023 at 12:56:49PM +0200, Ricardo Ribalda wrote: > Hi Greg > > On Fri, 27 Oct 2023 at 12:51, Greg Kroah-Hartman > <gregkh@linuxfoundation.org> wrote: > > What commit id does this fix? > Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") > > Shall I send v2? or you can pick the tag? Please send a v2 as you now obviously will also have to add a proper "cc: stable..." tag as well, right? thanks, greg k-h
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 343d2570189f..65f73dd8ef47 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1918,6 +1918,8 @@ static int dwc3_probe(struct platform_device *pdev) pm_runtime_put(dev); + dma_set_max_seg_size(dev, UINT_MAX); + return 0; err_exit_debugfs:
Allow devices to have dma operations beyond 4K, and avoid warnings such as: DMA-API: dwc3 a600000.usb: mapping sg segment longer than device claims to support [len=86016] [max=65536] Reported-by: Zubin Mithra <zsm@chromium.org> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> --- Found while running yavta -f YUYV -s 1280x720 -c /dev/video0 with: CONFIG_DMA_API_DEBUG=y --- drivers/usb/dwc3/core.c | 2 ++ 1 file changed, 2 insertions(+) --- base-commit: 611da07b89fdd53f140d7b33013f255bf0ed8f34 change-id: 20231026-dwc3-fac74fcb3b2a Best regards,