linux-kernel - [PATCH] csky: Correct position of

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Message-Id: <20220705065837.1172754-1-guoren@kernel.org>
Date:   Tue,  5 Jul 2022 02:58:37 -0400
From:   guoren@...nel.org
To:     guoren@...nel.org, arnd@...db.de, deller@....de
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-csky@...r.kernel.org, Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH] csky: Correct position of _stext

From: Guo Ren <guoren@...ux.alibaba.com>

Correct position of _stext to prevent check_kernel_text_object
warning [1].

[1] https://lore.kernel.org/linux-csky/YfLpNkmlvoR8iPcq@ls3530/

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...nel.org>
Cc: Helge Deller <deller@....de>
---
 arch/csky/include/asm/sections.h | 10 ++++++++++
 arch/csky/kernel/setup.c         |  4 ++--
 arch/csky/kernel/vmlinux.lds.S   |  3 ++-
 3 files changed, 14 insertions(+), 3 deletions(-)
 create mode 100644 arch/csky/include/asm/sections.h

diff --git a/arch/csky/include/asm/sections.h b/arch/csky/include/asm/sections.h
new file mode 100644
index 000000000000..4192cba8445d
--- /dev/null
+++ b/arch/csky/include/asm/sections.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_SECTIONS_H
+#define __ASM_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern char _start[];
+
+#endif /* __ASM_SECTIONS_H */
diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c
index c64e7be2045b..106fbf0b6f3b 100644
--- a/arch/csky/kernel/setup.c
+++ b/arch/csky/kernel/setup.c
@@ -31,7 +31,7 @@ static void __init csky_memblock_init(void)
 	unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
 	signed long size;
 
-	memblock_reserve(__pa(_stext), _end - _stext);
+	memblock_reserve(__pa(_start), _end - _start);
 
 	early_init_fdt_reserve_self();
 	early_init_fdt_scan_reserved_mem();
@@ -78,7 +78,7 @@ void __init setup_arch(char **cmdline_p)
 	pr_info("Phys. mem: %ldMB\n",
 		(unsigned long) memblock_phys_mem_size()/1024/1024);
 
-	setup_initial_init_mm(_stext, _etext, _edata, _end);
+	setup_initial_init_mm(_start, _etext, _edata, _end);
 
 	parse_early_param();
 
diff --git a/arch/csky/kernel/vmlinux.lds.S b/arch/csky/kernel/vmlinux.lds.S
index e8b1a4a49798..163a8cd8b9a6 100644
--- a/arch/csky/kernel/vmlinux.lds.S
+++ b/arch/csky/kernel/vmlinux.lds.S
@@ -22,7 +22,7 @@ SECTIONS
 {
 	. = PAGE_OFFSET + PHYS_OFFSET_OFFSET;
 
-	_stext = .;
+	_start = .;
 	__init_begin = .;
 	HEAD_TEXT_SECTION
 	INIT_TEXT_SECTION(PAGE_SIZE)
@@ -33,6 +33,7 @@ SECTIONS
 
 	.text : AT(ADDR(.text) - LOAD_OFFSET) {
 		_text = .;
+		_stext = .;
 		VBR_BASE
 		IRQENTRY_TEXT
 		SOFTIRQENTRY_TEXT
-- 
2.36.1