netdev - Re: [PATCH net v3 1/2] smsc911x: only update stats when interface is up

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Message-ID: <ZB1SQCOpLp0kDkm3@ninjato>
Date:   Fri, 24 Mar 2023 08:33:20 +0100
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Simon Horman <simon.horman@...igine.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Steve Glendinning <steve.glendinning@...well.net>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Vladimir Oltean <olteanv@...il.com>
Subject: Re: [PATCH net v3 1/2] smsc911x: only update stats when interface is
 up

Hi Jakub,

> Maybe we should add a false-negative version of netif_running() ?
> __LINK_STATE_START*ED* ?

Sounds very reasonable, yet I am missing subsystem details to really
judge it. I just hacked a quick coccinelle script and 14 more drivers
could be happy about such a change:

 drivers/net/ethernet/3com/3c515.c            | 2 +-
 drivers/net/ethernet/8390/axnet_cs.c         | 2 +-
 drivers/net/ethernet/8390/lib8390.c          | 2 +-
 drivers/net/ethernet/dec/tulip/de2104x.c     | 2 +-
 drivers/net/ethernet/dec/tulip/tulip_core.c  | 2 +-
 drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +-
 drivers/net/ethernet/fealnx.c                | 2 +-
 drivers/net/ethernet/natsemi/natsemi.c       | 2 +-
 drivers/net/ethernet/realtek/8139cp.c        | 2 +-
 drivers/net/ethernet/silan/sc92031.c         | 2 +-
 drivers/net/ethernet/smsc/epic100.c          | 2 +-
 drivers/net/ethernet/sun/sungem.c            | 2 +-
 drivers/net/ethernet/toshiba/tc35815.c       | 2 +-
 drivers/net/ethernet/via/via-velocity.c      | 2 +-
 14 files changed, 14 insertions(+), 14 deletions(-)

The script:

@@
identifier name, args;
@@

	static struct net_device_stats *name(struct net_device *args)
	{
		...
-		netif_running
+		netif_opened
		...
	}


Thanks and happy hacking,

   Wolfram


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