On 22-01-31 11:50:09, Dan Williams wrote: > When CONFIG_PROVE_LOCKING is enabled the 'struct device' definition gets > an additional mutex that is not clobbered by > lockdep_set_novalidate_class() like the typical device_lock(). This > allows for local annotation of subsystem locks with mutex_lock_nested() > per the subsystem's object/lock hierarchy. For CXL, this primarily needs > the ability to lock ports by depth and child objects of ports by their > parent parent-port lock. > > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> Reviewed-by: Ben Widawsky <ben.widawsky@xxxxxxxxx> [snip]
