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

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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@xxxxxxxxxx>
> 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@xxxxxxxxxx>
>     Reported-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
>     Tested-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
>     Cc: Luca Coelho <luciano.coelho@xxxxxxxxx>
>     Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
>     Link: https://bugzilla.kernel.org/show_bug.cgi?id=209913
>     Link: https://lore.kernel.org/r/20210125150949.619309-1-eric.dumazet@xxxxxxxxx
>     Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>

Now queued up, thanks.

greg k-h



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