[PATCH] mm: drop stale MAX_ORDER references

[Qi Xi <xiqi2@huawei.com>]

The treewide rename in commit 5e0a760b4441 ("mm, treewide: rename
MAX_ORDER to MAX_PAGE_ORDER") left a few spots still using the old
name:

  - two comments in include/net/mana/mana.h and mm/page_alloc.c;
  - the gdb helper scripts/gdb/linux/mm.py, where self.MAX_ORDER is
    a local mirror of the kernel's MAX_ORDER define.

Rename the leftover instances to MAX_PAGE_ORDER so the tree is
consistent.

No functional changes.

Signed-off-by: Qi Xi <xiqi2@huawei.com>
---
 include/net/mana/mana.h | 4 ++--
 mm/page_alloc.c         | 2 +-
 scripts/gdb/linux/mm.py | 8 ++++----
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 04acb6791dbd..1d5bed71d6a7 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h
@@ -40,8 +40,8 @@ enum TRI_STATE {
 #define COMP_ENTRY_SIZE 64
 
 /* This Max value for RX buffers is derived from __alloc_page()'s max page
- * allocation calculation. It allows maximum 2^(MAX_ORDER -1) pages. RX buffer
- * size beyond this value gets rejected by __alloc_page() call.
+ * allocation calculation. It allows maximum 2^(MAX_PAGE_ORDER -1) pages. RX
+ * buffer size beyond this value gets rejected by __alloc_page() call.
  */
 #define MAX_RX_BUFFERS_PER_QUEUE 8192
 #define DEF_RX_BUFFERS_PER_QUEUE 1024
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ee902a468c2f..42b5b41432c5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7803,7 +7803,7 @@ static bool cond_accept_memory(struct zone *zone, unsigned int order,
 	/*
 	 * Watermarks have not been initialized yet.
 	 *
-	 * Accepting one MAX_ORDER page to ensure progress.
+	 * Accepting one MAX_PAGE_ORDER page to ensure progress.
 	 */
 	if (!wmark)
 		return try_to_accept_memory_one(zone);
diff --git a/scripts/gdb/linux/mm.py b/scripts/gdb/linux/mm.py
index dffadccbb01d..28d33624c38b 100644
--- a/scripts/gdb/linux/mm.py
+++ b/scripts/gdb/linux/mm.py
@@ -56,7 +56,7 @@ class x86_page_ops():
 
         self.MAX_PHYSMEM_BITS = 46
         self.SECTION_SIZE_BITS = 27
-        self.MAX_ORDER = 10
+        self.MAX_PAGE_ORDER = 10
 
         self.SECTIONS_SHIFT = self.MAX_PHYSMEM_BITS - self.SECTION_SIZE_BITS
         self.NR_MEM_SECTIONS = 1 << self.SECTIONS_SHIFT
@@ -233,11 +233,11 @@ class aarch64_page_ops():
         self.SECTIONS_SHIFT = self.MAX_PHYSMEM_BITS - self.SECTION_SIZE_BITS
 
         if str(constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER).isdigit():
-            self.MAX_ORDER = constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER
+            self.MAX_PAGE_ORDER = constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER
         else:
-            self.MAX_ORDER = 10
+            self.MAX_PAGE_ORDER = 10
 
-        self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_ORDER)
+        self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_PAGE_ORDER)
         self.PFN_SECTION_SHIFT = self.SECTION_SIZE_BITS - self.PAGE_SHIFT
         self.NR_MEM_SECTIONS = 1 << self.SECTIONS_SHIFT
         self.PAGES_PER_SECTION = 1 << self.PFN_SECTION_SHIFT
-- 
2.33.0