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Groups > linux.kernel > #1566771 > unrolled thread

[PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()

Started byFlorian Fainelli <f.fainelli@gmail.com>
First post2017-01-25 18:20 +0100
Last post2017-01-25 20:50 +0100
Articles 3 — 3 participants

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  [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend() Florian Fainelli <f.fainelli@gmail.com> - 2017-01-25 18:20 +0100
    Re: [PATCH net] net: dsa: Bring back device detaching in  dsa_slave_suspend() Andrew Lunn <andrew@lunn.ch> - 2017-01-25 19:10 +0100
    Re: [PATCH net] net: dsa: Bring back device detaching in  dsa_slave_suspend() David Miller <davem@davemloft.net> - 2017-01-25 20:50 +0100

#1566771 — [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()

FromFlorian Fainelli <f.fainelli@gmail.com>
Date2017-01-25 18:20 +0100
Subject[PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()
Message-ID<t3zoK-4A0-13@gated-at.bofh.it>
Commit 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid
lockdep splat") removed the netif_device_detach() call done in
dsa_slave_suspend() which is necessary, and paired with a corresponding
netif_device_attach(), bring it back.

Fixes: 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid lockdep splat")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
David,

Can you also queue this for -stable? Thanks!

 net/dsa/slave.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 68c9eea00518..020a28d5c93e 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1203,6 +1203,8 @@ int dsa_slave_suspend(struct net_device *slave_dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(slave_dev);
 
+	netif_device_detach(slave_dev);
+
 	if (p->phy) {
 		phy_stop(p->phy);
 		p->old_pause = -1;
-- 
2.9.3

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#1566803 — Re: [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()

FromAndrew Lunn <andrew@lunn.ch>
Date2017-01-25 19:10 +0100
SubjectRe: [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()
Message-ID<t3Ab8-57b-9@gated-at.bofh.it>
In reply to#1566771
On Wed, Jan 25, 2017 at 09:10:41AM -0800, Florian Fainelli wrote:
> Commit 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid
> lockdep splat") removed the netif_device_detach() call done in
> dsa_slave_suspend() which is necessary, and paired with a corresponding
> netif_device_attach(), bring it back.
> 
> Fixes: 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid lockdep splat")
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Sorry for accidentally removing it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

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#1566889 — Re: [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()

FromDavid Miller <davem@davemloft.net>
Date2017-01-25 20:50 +0100
SubjectRe: [PATCH net] net: dsa: Bring back device detaching in dsa_slave_suspend()
Message-ID<t3BJT-5ZU-19@gated-at.bofh.it>
In reply to#1566771
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 25 Jan 2017 09:10:41 -0800

> Commit 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid
> lockdep splat") removed the netif_device_detach() call done in
> dsa_slave_suspend() which is necessary, and paired with a corresponding
> netif_device_attach(), bring it back.
> 
> Fixes: 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid lockdep splat")
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> David,
> 
> Can you also queue this for -stable? Thanks!

Applied and queued up for -stable, thanks.

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