linux-kernel - Re: [PATCH 1/1] Net: bcm.c: Remove Subtree Instead of Entry

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Message-ID: <20240809202249.16183-1-kuniyu@amazon.com>
Date: Fri, 9 Aug 2024 13:22:49 -0700
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <socketcan@...tkopp.net>
CC: <davem@...emloft.net>, <david.hunter.linux@...il.com>,
	<edumazet@...gle.com>, <javier.carrasco.cruz@...il.com>, <kuba@...nel.org>,
	<linux-can@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<mkl@...gutronix.de>, <netdev@...r.kernel.org>, <pabeni@...hat.com>,
	<skhan@...uxfoundation.org>, <kuniyu@...zon.com>
Subject: Re: [PATCH 1/1] Net: bcm.c: Remove Subtree Instead of Entry

From: Oliver Hartkopp <socketcan@...tkopp.net>
Date: Fri, 9 Aug 2024 11:57:41 +0200
> Hello David,
> 
> many thanks for the patch and the description.
> 
> Btw. the data structures of the elements inside that bcm proc dir should 
> have been removed at that point, so that the can-bcm dir should be empty.
> 
> I'm not sure what happens to the open sockets that are (later) removed 
> in bcm_release() when we use remove_proc_subtree() as suggested. 
> Removing this warning probably does not heal the root cause of the issue.

I posted a patch to fix bcm's proc entry leak few weeks ago, and this might
be related.
https://lore.kernel.org/netdev/20240722192842.37421-1-kuniyu@amazon.com/

Oliver, could you take this patch to can tree ?