From 4d42b10363f55baa72de3c6d46715394997d5ceb Mon Sep 17 00:00:00 2001
From: "David Hildenbrand (Arm)" <david@kernel.org>
Date: Mon, 21 Sep 2026 21:59:01 +0200
Subject: [PATCH] scripts/gdb: mm.py: remove fallbacks for SECTION_HAS_MEM_MAP
 and SECTION_IS_EARLY

There is no reason to handle the absence of the corresponding BIT values.
So let's remove the fallbacks.

Link: https://lore.kernel.org/20260921-b4-sparsemem_cleanups-v2-9-54d81d65e125@kernel.org
Link: https://lore.kernel.org/r/vpz5zqg5nwbpolxbkip45vxxdt3lni7j2haal7q42skc3b57tu@uh4cec4x32dq
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Seongjun Hong <hsj0512@snu.ac.kr>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Qi Zheng <qi.zheng@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Danilo Krummrich <dakr@kernel.org>
---
 scripts/gdb/linux/mm.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/scripts/gdb/linux/mm.py b/scripts/gdb/linux/mm.py
index 193a88d763ab..7398105ff3f6 100644
--- a/scripts/gdb/linux/mm.py
+++ b/scripts/gdb/linux/mm.py
@@ -71,12 +71,8 @@ class x86_page_ops():
 
         self.NR_SECTION_ROOTS = DIV_ROUND_UP(self.NR_MEM_SECTIONS, self.SECTIONS_PER_ROOT)
 
-        try:
-            self.SECTION_HAS_MEM_MAP = 1 << int(gdb.parse_and_eval('SECTION_HAS_MEM_MAP_BIT'))
-            self.SECTION_IS_EARLY = 1 << int(gdb.parse_and_eval('SECTION_IS_EARLY_BIT'))
-        except:
-            self.SECTION_HAS_MEM_MAP = 1 << 0
-            self.SECTION_IS_EARLY = 1 << 3
+        self.SECTION_HAS_MEM_MAP = 1 << int(gdb.parse_and_eval('SECTION_HAS_MEM_MAP_BIT'))
+        self.SECTION_IS_EARLY = 1 << int(gdb.parse_and_eval('SECTION_IS_EARLY_BIT'))
 
         self.SUBSECTION_SHIFT = 21
         self.PAGES_PER_SUBSECTION = 1 << (self.SUBSECTION_SHIFT - self.PAGE_SHIFT)