Re: [PATCH 6.13 234/274] net: protect netdev->napi_list with netdev_lock()

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On Wed, 19 Feb 2025 09:28:08 +0100 Greg Kroah-Hartman wrote:
> 6.13-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Jakub Kicinski <kuba@xxxxxxxxxx>
> 
> [ Upstream commit 1b23cdbd2bbc4b40e21c12ae86c2781e347ff0f8 ]
> 
> Hold netdev->lock when NAPIs are getting added or removed.
> This will allow safe access to NAPI instances of a net_device
> without rtnl_lock.
> 
> Create a family of helpers which assume the lock is already taken.
> Switch iavf to them, as it makes extensive use of netdev->lock,
> already.
> 
> Reviewed-by: Joe Damato <jdamato@xxxxxxxxxx>
> Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>
> Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
> Link: https://patch.msgid.link/20250115035319.559603-6-kuba@xxxxxxxxxx
> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
> Stable-dep-of: 011b03359038 ("Revert "net: skb: introduce and use a single page frag cache"")
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

please drop




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