> Bring dynamic debug in line with other subsystems by using the module > notifier callbacks. This results in a net decrease in core module > code. > > Additionally, Jim Cromie has a new dynamic debug classmap feature, > which requires that jump labels be initialized prior to dynamic debug. > Specifically, the new feature toggles a jump label from the existing > dynamic_debug_setup() function. However, this does not currently work > properly, because jump labels are initialized via the > 'module_notify_list' notifier chain, which is invoked after the > current call to dynamic_debug_setup(). Thus, this patch ensures that > jump labels are initialized prior to dynamic debug by setting the > dynamic debug notifier priority to 0, while jump labels have the > higher priority of 1. > > Tested by Jim using his new test case, and I've verfied the correct > printing via: # modprobe test_dynamic_debug dyndbg. > > Link: https://lore.kernel.org/lkml/20230113193016.749791-21-jim.cromie@xxxxxxxxx/ > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Link: https://lore.kernel.org/oe-kbuild-all/202302190427.9iIK2NfJ-lkp@xxxxxxxxx/ > Tested-by: Jim Cromie <jim.cromie@xxxxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > CC: Jim Cromie <jim.cromie@xxxxxxxxx> > Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Jason Baron <jbaron@xxxxxxxxxx> Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@xxxxxxxxx>
