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Message-ID: <20250608141509.157300-1-chenhuacai@loongson.cn>
Date: Sun, 8 Jun 2025 22:15:09 +0800
From: Huacai Chen <chenhuacai@...ngson.cn>
To: Masahiro Yamada <masahiroy@...nel.org>,
linux-kbuild@...r.kernel.org,
Huacai Chen <chenhuacai@...nel.org>
Cc: loongarch@...ts.linux.dev,
Guo Ren <guoren@...nel.org>,
Xuerui Wang <kernel@...0n.name>,
Jiaxun Yang <jiaxun.yang@...goat.com>,
linux-kernel@...r.kernel.org,
Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH] LoongArch: Fix build warnings about export.h
After commit a934a57a42f64a4 ("scripts/misc-check: check missing #include
<linux/export.h> when W=1") and 7d95680d64ac8e836c ("scripts/misc-check:
check unnecessary #include <linux/export.h> when W=1"), we get some build
warnings with W=1:
arch/loongarch/kernel/acpi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/alternative.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/kfpu.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/traps.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/unwind_guess.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/unwind_orc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/unwind_prologue.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/lib/crc32-loongarch.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/lib/csum.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
arch/loongarch/kernel/elf.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
arch/loongarch/kernel/paravirt.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
arch/loongarch/pci/pci.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
So fix these build warnings for LoongArch.
Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
---
arch/loongarch/kernel/acpi.c | 1 +
arch/loongarch/kernel/alternative.c | 1 +
arch/loongarch/kernel/elf.c | 1 -
arch/loongarch/kernel/kfpu.c | 1 +
arch/loongarch/kernel/paravirt.c | 1 -
arch/loongarch/kernel/traps.c | 1 +
arch/loongarch/kernel/unwind_guess.c | 1 +
arch/loongarch/kernel/unwind_orc.c | 3 ++-
arch/loongarch/kernel/unwind_prologue.c | 1 +
arch/loongarch/lib/crc32-loongarch.c | 1 +
arch/loongarch/lib/csum.c | 1 +
arch/loongarch/pci/pci.c | 1 -
12 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index a54cd6fd3796..1367ca759468 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/efi-bgrt.h>
+#include <linux/export.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/memblock.h>
diff --git a/arch/loongarch/kernel/alternative.c b/arch/loongarch/kernel/alternative.c
index 4ad13847e962..0e0c766df1e3 100644
--- a/arch/loongarch/kernel/alternative.c
+++ b/arch/loongarch/kernel/alternative.c
@@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/export.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <asm/alternative.h>
diff --git a/arch/loongarch/kernel/elf.c b/arch/loongarch/kernel/elf.c
index 0fa81ced28dc..3d98c6aa00db 100644
--- a/arch/loongarch/kernel/elf.c
+++ b/arch/loongarch/kernel/elf.c
@@ -6,7 +6,6 @@
#include <linux/binfmts.h>
#include <linux/elf.h>
-#include <linux/export.h>
#include <linux/sched.h>
#include <asm/cpu-features.h>
diff --git a/arch/loongarch/kernel/kfpu.c b/arch/loongarch/kernel/kfpu.c
index 4c476904227f..141b49bd989c 100644
--- a/arch/loongarch/kernel/kfpu.c
+++ b/arch/loongarch/kernel/kfpu.c
@@ -4,6 +4,7 @@
*/
#include <linux/cpu.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <asm/fpu.h>
#include <asm/smp.h>
diff --git a/arch/loongarch/kernel/paravirt.c b/arch/loongarch/kernel/paravirt.c
index e5a39bbad078..b1b51f920b23 100644
--- a/arch/loongarch/kernel/paravirt.c
+++ b/arch/loongarch/kernel/paravirt.c
@@ -1,5 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
-#include <linux/export.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq_work.h>
diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index 47fc2de6d150..3d9be6ca7ec5 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/kexec.h>
#include <linux/module.h>
+#include <linux/export.h>
#include <linux/extable.h>
#include <linux/mm.h>
#include <linux/sched/mm.h>
diff --git a/arch/loongarch/kernel/unwind_guess.c b/arch/loongarch/kernel/unwind_guess.c
index 98379b7d4147..33d5f33b374e 100644
--- a/arch/loongarch/kernel/unwind_guess.c
+++ b/arch/loongarch/kernel/unwind_guess.c
@@ -3,6 +3,7 @@
* Copyright (C) 2022 Loongson Technology Corporation Limited
*/
#include <asm/unwind.h>
+#include <linux/export.h>
unsigned long unwind_get_return_address(struct unwind_state *state)
{
diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c
index d623935a7547..0005be49b056 100644
--- a/arch/loongarch/kernel/unwind_orc.c
+++ b/arch/loongarch/kernel/unwind_orc.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/objtool.h>
+#include <linux/export.h>
#include <linux/module.h>
+#include <linux/objtool.h>
#include <linux/sort.h>
#include <asm/exception.h>
#include <asm/orc_header.h>
diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c
index 929ae240280a..729e775bd40d 100644
--- a/arch/loongarch/kernel/unwind_prologue.c
+++ b/arch/loongarch/kernel/unwind_prologue.c
@@ -3,6 +3,7 @@
* Copyright (C) 2022 Loongson Technology Corporation Limited
*/
#include <linux/cpumask.h>
+#include <linux/export.h>
#include <linux/ftrace.h>
#include <linux/kallsyms.h>
diff --git a/arch/loongarch/lib/crc32-loongarch.c b/arch/loongarch/lib/crc32-loongarch.c
index b37cd8537b45..db22c2ec55e2 100644
--- a/arch/loongarch/lib/crc32-loongarch.c
+++ b/arch/loongarch/lib/crc32-loongarch.c
@@ -11,6 +11,7 @@
#include <asm/cpu-features.h>
#include <linux/crc32.h>
+#include <linux/export.h>
#include <linux/module.h>
#include <linux/unaligned.h>
diff --git a/arch/loongarch/lib/csum.c b/arch/loongarch/lib/csum.c
index df309ae4045d..bcc9d01d8c41 100644
--- a/arch/loongarch/lib/csum.c
+++ b/arch/loongarch/lib/csum.c
@@ -2,6 +2,7 @@
// Copyright (C) 2019-2020 Arm Ltd.
#include <linux/compiler.h>
+#include <linux/export.h>
#include <linux/kasan-checks.h>
#include <linux/kernel.h>
diff --git a/arch/loongarch/pci/pci.c b/arch/loongarch/pci/pci.c
index 2726639150bc..5bc9627a6cf9 100644
--- a/arch/loongarch/pci/pci.c
+++ b/arch/loongarch/pci/pci.c
@@ -3,7 +3,6 @@
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
*/
#include <linux/kernel.h>
-#include <linux/export.h>
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/types.h>
--
2.47.1
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