On Tue, Nov 28, 2023 at 02:40:59PM +0000, Jonathan Cameron wrote: > On Tue, 07 Nov 2023 10:29:28 +0000 > Russell King <rmk+kernel@xxxxxxxxxxxxxxx> wrote: > > > From: James Morse <james.morse@xxxxxxx> > > > > intel_epb_init() is called as a subsys_initcall() to register cpuhp > > callbacks. The callbacks make use of get_cpu_device() which will return > > NULL unless register_cpu() has been called. register_cpu() is called > > from topology_init(), which is also a subsys_initcall(). > > > > This is fragile. Moving the register_cpu() to a different > > subsys_initcall() leads to a NULL dereference during boot. > > > > Make intel_epb_init() a late_initcall(), user-space can't provide a > > policy before this point anyway. > > > > Signed-off-by: James Morse <james.morse@xxxxxxx> > > Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> > > Seems reasonable. FWIW > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Thanks, however this has already been merged into the tip tree since Rafael suggested sending it separately. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
