On Fri, Oct 27, 2023, 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]
Cc: stable@vger.kernel.org Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") 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
Changes in v2:
- Add stable tag
- Link to v1: https://urldefense.com/v3/__https://lore.kernel.org/r/20231026-dwc3-v1-1-643...
drivers/usb/dwc3/core.c | 2 ++ 1 file changed, 2 insertions(+)
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:
base-commit: 611da07b89fdd53f140d7b33013f255bf0ed8f34 change-id: 20231026-dwc3-fac74fcb3b2a
Best regards,
Ricardo Ribalda ribalda@chromium.org
Probably better to have the Closes: tag with the link to the reported issue. Regardless,
Acked-by: Thinh Nguyen Thinh.Nguyen@synopsys.com
Thanks, Thinh