From e6ee90233eb155991e469d2047855fc466b831b6 Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhuacai@loongson.cn>
Date: Wed, 6 Jul 2022 11:03:09 +0800
Subject: [PATCH] LoongArch: Fix build errors for tinyconfig
Building loongarch:tinyconfig fails with the following error.
./arch/loongarch/include/asm/page.h: In function 'pfn_valid':
./arch/loongarch/include/asm/page.h:42:32: error: 'PHYS_OFFSET' undeclared
Add the missing include file and fix succeeding vdso errors.
Fixes: 09cfefb7fa70 ("LoongArch: Add memory management")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---
arch/loongarch/include/asm/page.h | 1 +
arch/loongarch/vdso/Makefile | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/loongarch/include/asm/page.h b/arch/loongarch/include/asm/page.h
index 3dba4986f6c92..dc47fc724fa17 100644
--- a/arch/loongarch/include/asm/page.h
+++ b/arch/loongarch/include/asm/page.h
@@ -6,6 +6,7 @@
#define _ASM_PAGE_H
#include <linux/const.h>
+#include <asm/addrspace.h>
/*
* PAGE_SHIFT determines the page size
diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile
index 6b6e16732c603..92e4040322578 100644
--- a/arch/loongarch/vdso/Makefile
+++ b/arch/loongarch/vdso/Makefile
@@ -21,6 +21,7 @@ ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS))
endif
cflags-vdso := $(ccflags-vdso) \
+ -isystem $(shell $(CC) -print-file-name=include) \
$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
-O2 -g -fno-strict-aliasing -fno-common -fno-builtin -G0 \
-fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
--
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