Subject: Re: [PATCH net-next] net: mana: Cache MANA_QUERY_LINK_CONFIG result to avoid repeated HWC queries

From: Jakub Kicinski <[email-masked]>
Date: Fri, 5 Jun 2026 16:13:15 -0700

On Thu, 4 Jun 2026 22:29:29 -0700 Erni Sri Satya Vennela wrote:
> I tried two netdev_lock-based variants. 
> 
> mana_query_link_cfg() has four callers:
> 
> 1 ethtool ioctl/netlink			- has RTNL	- has netdev->lock
> 2 sysfs speed_show/duplex_show		- has RTNL	- no netdev->lock
> 3 netvsc_get_link_ksettings VF forward	- has RTNL	- no netdev->lock
> 4 mana_shaper_set			- no RTNL	- has netdev->lock
> 
> No existing lock covers all four.

How fresh is your tree? The just-minted commit 9f275c2e9020 should
address the gap, I believe?