linux-kernel - [PATCH 2/3] modpost: .meminit.* is not in init section when CONFIG_MEMORY

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Message-Id: <20240702234008.19101-2-richard.weiyang@gmail.com>
Date: Tue,  2 Jul 2024 23:40:07 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: akpm@...ux-foundation.org,
	masahiroy@...nel.org,
	nathan@...nel.org,
	nicolas@...sle.eu
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org,
	Wei Yang <richard.weiyang@...il.com>,
	Mike Rapoport <rppt@...nel.org>
Subject: [PATCH 2/3] modpost: .meminit.* is not in init section when CONFIG_MEMORY_HOTPLUG set

.meminit.* is not put into init section when CONFIG_MEMORY_HOTPLUG is
set, since we define MEM_KEEP()/MEM_DISCARD() according to
CONFIG_MEMORY_HOTPLUG.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
CC: Mike Rapoport (IBM) <rppt@...nel.org>
---
 scripts/mod/modpost.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index f48d72d22dc2..81134403d4d7 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -22,6 +22,7 @@
 #include <errno.h>
 #include "modpost.h"
 #include "../../include/linux/license.h"
+#include "../../include/generated/autoconf.h"
 
 static bool module_enabled;
 /* Are we using CONFIG_MODVERSIONS? */
@@ -775,9 +776,14 @@ static void check_section(const char *modname, struct elf_info *elf,
 
 
 
+#if defined(CONFIG_MEMORY_HOTPLUG)
+#define ALL_INIT_DATA_SECTIONS \
+	".init.setup", ".init.rodata", ".init.data"
+#else
 #define ALL_INIT_DATA_SECTIONS \
 	".init.setup", ".init.rodata", ".meminit.rodata", \
 	".init.data", ".meminit.data"
+#endif
 
 #define ALL_PCI_INIT_SECTIONS	\
 	".pci_fixup_early", ".pci_fixup_header", ".pci_fixup_final", \
@@ -786,7 +792,11 @@ static void check_section(const char *modname, struct elf_info *elf,
 
 #define ALL_XXXINIT_SECTIONS ".meminit.*"
 
+#if defined(CONFIG_MEMORY_HOTPLUG)
+#define ALL_INIT_SECTIONS INIT_SECTIONS
+#else
 #define ALL_INIT_SECTIONS INIT_SECTIONS, ALL_XXXINIT_SECTIONS
+#endif
 #define ALL_EXIT_SECTIONS ".exit.*"
 
 #define DATA_SECTIONS ".data", ".data.rel"
-- 
2.34.1