4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> commit 8bbae288a85abed6a1cf7d185d8b9dc2f5dcb12c upstream. 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@xxxxxxxxxxxxxxx Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Reported-by: Zubin Mithra <zsm@xxxxxxxxxxxx> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20231026-dwc3-v2-1-1d4fd5c3e067@xxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/dwc3/core.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1288,6 +1288,8 @@ static int dwc3_probe(struct platform_de dwc3_debugfs_init(dwc); pm_runtime_put(dev); + dma_set_max_seg_size(dev, UINT_MAX); + return 0; err5: