+ scripts-gdb-add-a-radix-tree-parser-v2.patch added to mm-nonmm-unstable branch

+ scripts-gdb-add-a-radix-tree-parser-v2.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: scripts-gdb-add-a-radix-tree-parser-v2
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     scripts-gdb-add-a-radix-tree-parser-v2.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/scripts-gdb-add-a-radix-tree-parser-v2.patch

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

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Florian Fainelli <f.fainelli@gmail.com>
Subject: scripts-gdb-add-a-radix-tree-parser-v2
Date: Wed, 5 Apr 2023 15:27:43 -0700

guard against a NULL node in the while loop

Link: https://lkml.kernel.org/r/20230405222743.1191674-1-f.fainelli@gmail.com
Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/gdb/linux/radixtree.py |    3 +++
 1 file changed, 3 insertions(+)

--- a/scripts/gdb/linux/radixtree.py~scripts-gdb-add-a-radix-tree-parser-v2
+++ a/scripts/gdb/linux/radixtree.py
@@ -58,6 +58,9 @@ def lookup(root, index):
         offset = (index >> node['shift']) & constants.LX_RADIX_TREE_MAP_MASK
         slot = node['slots'][offset]
 
+        if slot == 0:
+            return None
+
         node = slot.cast(node.type.pointer()).dereference()
         if node == 0:
             return None
_

Patches currently in -mm which might be from f.fainelli@gmail.com are

scripts-gdb-add-a-radix-tree-parser-v2.patch