Re: Patch for stable: iwlwifi: provide gso_type to GSO packets

On Fri, Jan 29, 2021 at 09:40:33PM -0600, Robert Hancock wrote:

I'm told netdev patches are going through the regular stable queue now, so I'd like to nominate this commit from mainline, if it hasn't been picked up already (I don't see it in the queue currently).

This patch is reported to fix a severe upload speed regression in many Intel wireless adapters existing since kernel 5.9, as described in https://bugzilla.kernel.org/show_bug.cgi?id=209913 .

commit 81a86e1bd8e7060ebba1718b284d54f1238e9bf9 Author: Eric Dumazet edumazet@google.com Date: Mon Jan 25 07:09:49 2021 -0800

iwlwifi: provide gso_type to GSO packets

net/core/tso.c got recent support for USO, and this broke iwlfifi
because the driver implemented a limited form of GSO.

Providing ->gso_type allows for skb_is_gso_tcp() to provide
a correct result.

Fixes: 3d5b459ba0e3 ("net: tso: add UDP segmentation support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Ben Greear <greearb@candelatech.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209913
Link: https://lore.kernel.org/r/20210125150949.619309-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Now queued up, thanks.

greg k-h