linux-kernel - Re: [PATCH V2] net: qrtr: Do not do DEL_SERVER broadcast after DEL

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Message-ID: <ZCc4mV9slbY1eVZl@corigine.com>
Date:   Fri, 31 Mar 2023 21:46:33 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Sricharan Ramabadhran <quic_srichara@...cinc.com>
Cc:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        mani@...nel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, linux-arm-msm@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] net: qrtr: Do not do DEL_SERVER broadcast after
 DEL_CLIENT

On Fri, Mar 31, 2023 at 02:02:04PM +0530, Sricharan Ramabadhran wrote:
> <..>
> 
> > > -static int server_del(struct qrtr_node *node, unsigned int port)
> > > +static int server_del(struct qrtr_node *node, unsigned int port, bool bcast)
> > >   {
> > >   	struct qrtr_lookup *lookup;
> > >   	struct qrtr_server *srv;
> > > @@ -287,7 +287,7 @@ static int server_del(struct qrtr_node *node, unsigned int port)
> > >   	radix_tree_delete(&node->servers, port);
> > >   	/* Broadcast the removal of local servers */
> > > -	if (srv->node == qrtr_ns.local_node)
> > > +	if (srv->node == qrtr_ns.local_node && bcast)
> > >   		service_announce_del(&qrtr_ns.bcast_sq, srv);
> > >   	/* Announce the service's disappearance to observers */
> > > @@ -373,7 +373,7 @@ static int ctrl_cmd_bye(struct sockaddr_qrtr *from)
> > >   		}
> > >   		slot = radix_tree_iter_resume(slot, &iter);
> > >   		rcu_read_unlock();
> > > -		server_del(node, srv->port);
> > > +		server_del(node, srv->port, true);
> > >   		rcu_read_lock();
> > >   	}
> > >   	rcu_read_unlock();
> > > @@ -459,10 +459,13 @@ static int ctrl_cmd_del_client(struct sockaddr_qrtr *from,
> > >   		kfree(lookup);
> > >   	}
> > > -	/* Remove the server belonging to this port */
> > > +	/* Remove the server belonging to this port but don't broadcast
> > 
> > This is still not as per the multi line comment style perferred in kernel.
> > Please read: https://www.kernel.org/doc/html/latest/process/coding-style.html#commenting
> > 
> 
>  Ho, i had it like first style and checkpatch cribbed. Then changed it
>  as per the second style for net/ format. You mean we should stick to
>  1 st style ?

I think that what you have matches the preferred style for net/ code,
and thus is correct for this patch.

https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html#multi-line-comments