disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/pageblock-flags.h
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@@ -1,19 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Macros for manipulating and testing flags related to a
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  * pageblock_nr_pages number of pages.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation version 2 of the License
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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  *
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  * Copyright (C) IBM Corporation, 2006
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  *
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@@ -25,10 +13,11 @@
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 #include <linux/types.h>
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+#define PB_migratetype_bits 3
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 /* Bit indices that affect a whole block of pages */
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 enum pageblock_bits {
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 	PB_migrate,
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-	PB_migrate_end = PB_migrate + 3 - 1,
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+	PB_migrate_end = PB_migrate + PB_migratetype_bits - 1,
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 			/* 3 bits required for migrate types */
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 	PB_migrate_skip,/* If set the block is skipped by compaction */
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@@ -67,35 +56,25 @@
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 unsigned long get_pfnblock_flags_mask(struct page *page,
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 				unsigned long pfn,
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-				unsigned long end_bitidx,
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 				unsigned long mask);
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 void set_pfnblock_flags_mask(struct page *page,
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 				unsigned long flags,
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 				unsigned long pfn,
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-				unsigned long end_bitidx,
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 				unsigned long mask);
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 /* Declarations for getting and setting flags. See mm/page_alloc.c */
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-#define get_pageblock_flags_group(page, start_bitidx, end_bitidx) \
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-	get_pfnblock_flags_mask(page, page_to_pfn(page),		\
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-			end_bitidx,					\
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-			(1 << (end_bitidx - start_bitidx + 1)) - 1)
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-#define set_pageblock_flags_group(page, flags, start_bitidx, end_bitidx) \
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-	set_pfnblock_flags_mask(page, flags, page_to_pfn(page),		\
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-			end_bitidx,					\
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-			(1 << (end_bitidx - start_bitidx + 1)) - 1)
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-
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 #ifdef CONFIG_COMPACTION
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 #define get_pageblock_skip(page) \
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-			get_pageblock_flags_group(page, PB_migrate_skip,     \
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-							PB_migrate_skip)
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+	get_pfnblock_flags_mask(page, page_to_pfn(page),	\
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+			(1 << (PB_migrate_skip)))
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 #define clear_pageblock_skip(page) \
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-			set_pageblock_flags_group(page, 0, PB_migrate_skip,  \
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-							PB_migrate_skip)
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+	set_pfnblock_flags_mask(page, 0, page_to_pfn(page),	\
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+			(1 << PB_migrate_skip))
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 #define set_pageblock_skip(page) \
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-			set_pageblock_flags_group(page, 1, PB_migrate_skip,  \
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-							PB_migrate_skip)
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+	set_pfnblock_flags_mask(page, (1 << PB_migrate_skip),	\
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+			page_to_pfn(page),			\
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+			(1 << PB_migrate_skip))
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 #else
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 static inline bool get_pageblock_skip(struct page *page)
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 {