Re: [PATCH v2] net: lantiq: Add locking for TX DMA channel

On Thu, Sep 24, 2020 at 3:01 AM David Miller [off-list ref] wrote:

From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 22 Sep 2020 23:41:12 +0200

quoted

The TX DMA channel data is accessed by the xrx200_start_xmit() and the
xrx200_tx_housekeeping() function from different threads. Make sure the
accesses are synchronized by acquiring the netif_tx_lock() in the
xrx200_tx_housekeeping() function too. This lock is acquired by the
kernel before calling xrx200_start_xmit().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Applied [...]

what is the procedure to have this patch included in the 5.4 and 5.9
-stable trees as well?
this commit is already in mainline as f9317ae5523f99999fb54c513ebabbb2bc887ddf

After more testing other users have confirmed that this patch works
In hindsight it should have carried Fixes: fe1a56420cf2ec ("net:
lantiq: Add Lantiq / Intel VRX200 Ethernet driver")


Thank you!
Martin