From: Ricardo Ribalda ribalda@chromium.org
stable inclusion from stable-v6.6.4 commit 6506e0228d3712881b3c405245c29d43d94356f1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8N1WC
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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@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 Acked-by: Thinh Nguyen Thinh.Nguyen@synopsys.com Link: https://lore.kernel.org/r/20231026-dwc3-v2-1-1d4fd5c3e067@chromium.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- 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 d25490965b27..8d5af9ccb602 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -2006,6 +2006,8 @@ 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: