ACK: [SRU][N][PATCH 0/1] System hang when using DW5823E WWAN on Arches 15

[Guoqing Jiang]

Acked-by: Guoqing Jiang <guoqing.jiang at canonical.com>

On 10/23/24 21:32, En-Wei Wu wrote:
> BugLink: https://bugs.launchpad.net/bugs/2085431
>
> [Impact]
> When using DW5823E WWAN modem (iosm kernel module) with IPSec (xfrm kernel module), the system will eventually hang after using the network.
>
> [Fix]
> The upstream fix is still under review here:
> https://lore.kernel.org/netdev/20240912071702.221128-1-en-wei.wu@canonical.com/
>
> Out of the urgency, we'd apply this patch to be an Ubuntu sauce patch into Noble 6.8.
>
> [Test Plan]
> 1. Install the latest Ubuntu oem / public image on the system with DW5823e WWAN card
> 2. insert the SIM card into the GSM modem and establish a connection to the GSM network
> 3. setting up an IPSec tunnel (through the XFRM kernel module).
> 4. launching a browser, e.g. Firefox, and running any HTML page on the remote side (i.e. tunnel communication), even a 'ping' through tunnel will cause the issue
>
> [Where problems could occur]
> May cause regression.
>
> En-Wei Wu (1):
>    UBUNTU: SAUCE: xfrm: check MAC header is shown with both skb->mac_len
>      and skb_mac_header_was_set()
>
>   net/xfrm/xfrm_input.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>