+ scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class.patch added to mm-hotfixes-unstable branch

+ scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class.patch added to mm-hotfixes-unstable branch

[Andrew Morton]

The patch titled
     Subject: scripts/gdb: fix lx-device-list-bus and lx-device-list-class
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class.patch

This patch will later appear in the mm-hotfixes-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Florian Fainelli <florian.fainelli@broadcom.com>
Subject: scripts/gdb: fix lx-device-list-bus and lx-device-list-class
Date: Wed, 29 Nov 2023 20:33:16 -0800

After the conversion to bus_to_subsys() and class_to_subsys(), the gdb
scripts listing the system buses and classes respectively was broken, fix
those by returning the subsys_priv pointer and have the various caller
de-reference either the 'bus' or 'class' structure members accordingly.

Link: https://lkml.kernel.org/r/20231130043317.174188-1-florian.fainelli@broadcom.com
Fixes: 83b9148df2c9 ("driver core: bus: bus iterator cleanups")
Fixes: 7b884b7f24b4 ("driver core: class.c: convert to only use class_to_subsys")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/gdb/linux/device.py |   16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

--- a/scripts/gdb/linux/device.py~scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class
+++ a/scripts/gdb/linux/device.py
@@ -36,26 +36,26 @@ def for_each_bus():
     for kobj in kset_for_each_object(gdb.parse_and_eval('bus_kset')):
         subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
         subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
-        yield subsys_priv['bus']
+        yield subsys_priv
 
 
 def for_each_class():
     for kobj in kset_for_each_object(gdb.parse_and_eval('class_kset')):
         subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
         subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
-        yield subsys_priv['class']
+        yield subsys_priv
 
 
 def get_bus_by_name(name):
     for item in for_each_bus():
-        if item['name'].string() == name:
+        if item['bus']['name'].string() == name:
             return item
     raise gdb.GdbError("Can't find bus type {!r}".format(name))
 
 
 def get_class_by_name(name):
     for item in for_each_class():
-        if item['name'].string() == name:
+        if item['class']['name'].string() == name:
             return item
     raise gdb.GdbError("Can't find device class {!r}".format(name))
 
@@ -70,13 +70,13 @@ def klist_for_each(klist):
 
 
 def bus_for_each_device(bus):
-    for kn in klist_for_each(bus['p']['klist_devices']):
+    for kn in klist_for_each(bus['klist_devices']):
         dp = container_of(kn, device_private_type.get_type().pointer(), 'knode_bus')
         yield dp['device']
 
 
 def class_for_each_device(cls):
-    for kn in klist_for_each(cls['p']['klist_devices']):
+    for kn in klist_for_each(cls['klist_devices']):
         dp = container_of(kn, device_private_type.get_type().pointer(), 'knode_class')
         yield dp['device']
 
@@ -103,7 +103,7 @@ class LxDeviceListBus(gdb.Command):
     def invoke(self, arg, from_tty):
         if not arg:
             for bus in for_each_bus():
-                gdb.write('bus {}:\t{}\n'.format(bus['name'].string(), bus))
+                gdb.write('bus {}:\t{}\n'.format(bus['bus']['name'].string(), bus))
                 for dev in bus_for_each_device(bus):
                     _show_device(dev, level=1)
         else:
@@ -123,7 +123,7 @@ class LxDeviceListClass(gdb.Command):
     def invoke(self, arg, from_tty):
         if not arg:
             for cls in for_each_class():
-                gdb.write("class {}:\t{}\n".format(cls['name'].string(), cls))
+                gdb.write("class {}:\t{}\n".format(cls['class']['name'].string(), cls))
                 for dev in class_for_each_device(cls):
                     _show_device(dev, level=1)
         else:
_

Patches currently in -mm which might be from florian.fainelli@broadcom.com are

scripts-gdb-fix-lx-device-list-bus-and-lx-device-list-class.patch