From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit f19c3c2959e465209ade1a7a699e6cbf4359ce78 ]
Avoid generating an exception if there are no generic power domain(s) registered:
(gdb) lx-genpd-summary domain status children /device runtime status ---------------------------------------------------------------------- Python Exception <class 'gdb.error'>: No symbol "gpd_list" in current context. Error occurred in Python: No symbol "gpd_list" in current context. (gdb) quit
[f.fainelli@gmail.com: correctly invoke gdb_eval_or_none] Link: https://lkml.kernel.org/r/20230327185746.3856407-1-f.fainelli@gmail.com Link: https://lkml.kernel.org/r/20230323231659.3319941-1-f.fainelli@gmail.com Fixes: 8207d4a88e1e ("scripts/gdb: add lx-genpd-summary command") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Cc: Jan Kiszka jan.kiszka@siemens.com Cc: Kieran Bingham kbingham@kernel.org Cc: Leonard Crestez leonard.crestez@nxp.com Cc: Stephen Boyd sboyd@kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/gdb/linux/genpd.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/gdb/linux/genpd.py b/scripts/gdb/linux/genpd.py index 39cd1abd85590..b53649c0a77a6 100644 --- a/scripts/gdb/linux/genpd.py +++ b/scripts/gdb/linux/genpd.py @@ -5,7 +5,7 @@ import gdb import sys
-from linux.utils import CachedType +from linux.utils import CachedType, gdb_eval_or_none from linux.lists import list_for_each_entry
generic_pm_domain_type = CachedType('struct generic_pm_domain') @@ -70,6 +70,8 @@ Output is similar to /sys/kernel/debug/pm_genpd/pm_genpd_summary''' gdb.write(' %-50s %s\n' % (kobj_path, rtpm_status_str(dev)))
def invoke(self, arg, from_tty): + if gdb_eval_or_none("&gpd_list") is None: + raise gdb.GdbError("No power domain(s) registered") gdb.write('domain status children\n'); gdb.write(' /device runtime status\n'); gdb.write('----------------------------------------------------------------------\n');