Thread (3 messages) 3 messages, 2 authors, 2023-03-22

Re: [next-20230317][PPC/MLX5][bisected 4d5ab0a] Boot WARNING: CPU: 0 PID: 9 at net/core/dev.c:1928 call_netdevice_notifiers_info

From: Abdul Haleem <hidden>
Date: 2023-03-22 17:55:26
Also in: linux-next, lkml, netdev


On 3/20/23 6:55 PM, Lorenzo Bianconi wrote:
quoted
Greeting's

Warning is seen while booting kernels from 6.3.0-rc3-next-20230317 on my
powerpc Power 10 LPAR

Boots fine without warnings when below patch is reverted

commit 4d5ab0ad964df178beba031b89429a601893ff61
Author: Lorenzo Bianconi [off-list ref]
Date:   Thu Mar 9 13:25:31 2023 +0100

     net/mlx5e: take into account device reconfiguration for xdp_features
flag

     Take into account LRO and GRO configuration setting device xdp_features
     flag. Consider channel rq_wq_type enabling rx scatter-gatter support in
     xdp_features flag and disable NETDEV_XDP_ACT_NDO_XMIT_SG since it is not
     supported yet by the driver.
     Moreover always enable NETDEV_XDP_ACT_NDO_XMIT as the ndo_xdp_xmit

4d5ab0ad got introduced in next-20230314

@Lorenzo Could you please look into this
I would say this issue has been already fixed by Jakub here:

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/core/xdp.c?id=769639c1fe8a98129aa97c8ee981639db1e8955c

Thanks Lorenzo,

Verified the patch and it fixes the problem and next-20230321 kernel 
boots fine on my powerpc lpar

Tested-by: Abdul Haleem <redacted>
-- 
Regard's

Abdul Haleem
IBM Linux Technology Center
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