From: Dong Aisheng <aisheng.dong@xxxxxxx>
Subject: mm: drop SECTION_SHIFT in code comments
Actually SECTIONS_SHIFT is used in the kernel code, so the code comments
is strictly incorrect. And since commit bbeae5b05ef6 ("mm: move page
flags layout to separate header"), SECTIONS_SHIFT definition has been
moved to include/linux/page-flags-layout.h, since code itself looks quite
straighforward, instead of moving the code comment into the new place as
well, we just simply remove it.
This also fixed a checkpatch complain derived from the original code:
WARNING: please, no space before tabs
+ * SECTIONS_SHIFT ^I^I#bits space required to store a section #$
Link: https://lkml.kernel.org/r/20210531091908.1738465-2-aisheng.dong@xxxxxxx
Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Suggested-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Reviewed-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mmzone.h | 2 --
1 file changed, 2 deletions(-)
--- a/include/linux/mmzone.h~mm-drop-section_shift-in-code-comments
+++ a/include/linux/mmzone.h
@@ -1200,8 +1200,6 @@ static inline struct zoneref *first_zone
#ifdef CONFIG_SPARSEMEM
/*
- * SECTION_SHIFT #bits space required to store a section #
- *
* PA_SECTION_SHIFT physical address to/from section number
* PFN_SECTION_SHIFT pfn to/from section number
*/
_
