From: Florian Fainelli <f.fainelli@xxxxxxxxx>
[ 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@xxxxxxxxx: correctly invoke gdb_eval_or_none]
Link: https://lkml.kernel.org/r/20230327185746.3856407-1-f.fainelli@xxxxxxxxx
Link: https://lkml.kernel.org/r/20230323231659.3319941-1-f.fainelli@xxxxxxxxx
Fixes: 8207d4a88e1e ("scripts/gdb: add lx-genpd-summary command")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Cc: Kieran Bingham <kbingham@xxxxxxxxxx>
Cc: Leonard Crestez <leonard.crestez@xxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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');
--
2.39.2
