On Fri, Apr 15, 2022 at 01:55:03PM +0300, Vladimir Oltean wrote: > I meant that for a DSA switch driver is mandatory to call dsa_switch_shutdown() > from your ->shutdown method, otherwise subtle things break, sorry for being unclear. > > Please blindly copy-paste the odd pattern that all other DSA drivers use > in ->shutdown and ->remove (with the platform_set_drvdata(dev, NULL) calls), > like a normal person :) Those platform_set_drvdata(, NULL) calls should be killed - the driver model will set the driver data to NULL after ->remove has been called - so having drivers also setting the driver data to NULL is mere duplication. The only case it would matter is if someone is looking up the device and then accessing the driver data - and one would hope that's done with appropriate locking or other guarantees (e.g. driver can never be unbound once the driver data has been set.) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
