This is a note to let you know that I've just added the patch titled
usb: dwc3: set the dma max_seg_size
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-dwc3-set-the-dma-max_seg_size.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8bbae288a85abed6a1cf7d185d8b9dc2f5dcb12c Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
Date: Fri, 27 Oct 2023 11:28:20 +0000
Subject: usb: dwc3: set the dma max_seg_size
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
@@ -1530,6 +1530,8 @@ static int dwc3_probe(struct platform_de
pm_runtime_put(dev);
+ dma_set_max_seg_size(dev, UINT_MAX);
+
return 0;
err5:
Patches currently in stable-queue which might be from ribalda@xxxxxxxxxxxx are
queue-4.19/usb-dwc3-set-the-dma-max_seg_size.patch
