[PATCH v4 21/26] arm64: vdso32: Include common headers in the vdso library

[Vincenzo Frascino]

The vDSO library should only include the necessary headers required for
a userspace library (UAPI and a minimal set of kernel headers). To make
this possible it is necessary to isolate from the kernel headers the
common parts that are strictly necessary to build the library.

Refactor the vdso32 implementation to include common headers.

Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
---
 arch/arm64/include/asm/vdso/compat_gettimeofday.h | 2 +-
 arch/arm64/kernel/vdso32/vgettimeofday.c          | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/vdso/compat_gettimeofday.h b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
index 81b0c394f1d8..8d8d1c006a68 100644
--- a/arch/arm64/include/asm/vdso/compat_gettimeofday.h
+++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
@@ -8,7 +8,7 @@
 #ifndef __ASSEMBLY__
 
 #include <asm/unistd.h>
-#include <uapi/linux/time.h>
+#include <asm/errno.h>
 
 #include <asm/vdso/compat_barrier.h>
 
diff --git a/arch/arm64/kernel/vdso32/vgettimeofday.c b/arch/arm64/kernel/vdso32/vgettimeofday.c
index 91138077b073..54fefacb1637 100644
--- a/arch/arm64/kernel/vdso32/vgettimeofday.c
+++ b/arch/arm64/kernel/vdso32/vgettimeofday.c
@@ -5,9 +5,6 @@
  * Copyright (C) 2018 ARM Limited
  *
  */
-#include <linux/time.h>
-#include <linux/types.h>
-
 #define VALID_CLOCK_ID(x) \
 	((x >= 0) && (x < VDSO_BASES))
 
-- 
2.25.1