Messages in this thread | | | Date | Mon, 13 Sep 2021 15:10:31 +0200 | From | Andrew Lunn <> | Subject | Re: [RFC PATCH net 1/5] net: mdio: introduce a shutdown method to mdio device drivers |
| |
On Sun, Sep 12, 2021 at 03:09:28PM +0300, Vladimir Oltean wrote: > MDIO-attached devices might have interrupts and other things that might > need quiesced when we kexec into a new kernel. Things are even more > creepy when those interrupt lines are shared, and in that case it is > absolutely mandatory to disable all interrupt sources. > > Moreover, MDIO devices might be DSA switches, and DSA needs its own > shutdown method to unlink from the DSA master, which is a new > requirement that appeared after commit 2f1e8ea726e9 ("net: dsa: link > interfaces with the DSA master to get rid of lockdep warnings"). > > So introduce a ->shutdown method in the MDIO device driver structure. > > Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
| |