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From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
	linux-mips@vger.kernel.org, x86@kernel.org
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>,
	Russell King <linux@armlinux.org.uk>,
	Paul Burton <paul.burton@mips.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>, Stephen Boyd <sboyd@kernel.org>,
	Mark Salyzyn <salyzyn@android.com>,
	Kees Cook <keescook@chromium.org>,
	Peter Collingbourne <pcc@google.com>,
	Dmitry Safonov <0x7f454c46@gmail.com>,
	Andrei Vagin <avagin@openvz.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Marc Zyngier <maz@kernel.org>,
	Mark Rutland <Mark.Rutland@arm.com>,
	Will Deacon <will@kernel.org>
Subject: [PATCH v4 20/26] arm64: vdso: Include common headers in the vdso library
Date: Tue, 17 Mar 2020 12:22:14 +0000	[thread overview]
Message-ID: <20200317122220.30393-21-vincenzo.frascino@arm.com> (raw)
In-Reply-To: <20200317122220.30393-1-vincenzo.frascino@arm.com>

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 vdso implementation to include common headers.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 arch/arm64/include/asm/vdso/gettimeofday.h | 1 -
 arch/arm64/kernel/vdso/vgettimeofday.c     | 2 --
 2 files changed, 3 deletions(-)

diff --git a/arch/arm64/include/asm/vdso/gettimeofday.h b/arch/arm64/include/asm/vdso/gettimeofday.h
index 5a534432aa5d..afba6ba332f8 100644
--- a/arch/arm64/include/asm/vdso/gettimeofday.h
+++ b/arch/arm64/include/asm/vdso/gettimeofday.h
@@ -8,7 +8,6 @@
 #ifndef __ASSEMBLY__
 
 #include <asm/unistd.h>
-#include <uapi/linux/time.h>
 
 #define VDSO_HAS_CLOCK_GETRES		1
 
diff --git a/arch/arm64/kernel/vdso/vgettimeofday.c b/arch/arm64/kernel/vdso/vgettimeofday.c
index 747635501a14..4236cf34d7d9 100644
--- a/arch/arm64/kernel/vdso/vgettimeofday.c
+++ b/arch/arm64/kernel/vdso/vgettimeofday.c
@@ -5,8 +5,6 @@
  * Copyright (C) 2018 ARM Limited
  *
  */
-#include <linux/time.h>
-#include <linux/types.h>
 
 int __kernel_clock_gettime(clockid_t clock,
 			   struct __kernel_timespec *ts)
-- 
2.25.1


  parent reply	other threads:[~2020-03-17 12:24 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-17 12:21 [PATCH v4 00/26] Introduce common headers for vDSO Vincenzo Frascino
2020-03-17 12:21 ` [PATCH v4 01/26] linux/const.h: Extract common header " Vincenzo Frascino
2020-03-17 12:21 ` [PATCH v4 02/26] linux/bits.h: " Vincenzo Frascino
2020-03-17 12:21 ` [PATCH v4 03/26] linux/limits.h: " Vincenzo Frascino
2020-03-17 12:21 ` [PATCH v4 04/26] x86:Introduce asm/vdso/clocksource.h Vincenzo Frascino
2020-03-17 12:21 ` [PATCH v4 05/26] arm: Introduce asm/vdso/clocksource.h Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 06/26] arm64: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 07/26] mips: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 08/26] linux/clocksource.h: Extract common header for vDSO Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 09/26] linux/math64.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 10/26] linux/time.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 11/26] linux/time32.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 12/26] linux/time64.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 13/26] linux/jiffies.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 14/26] linux/ktime.h: " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 15/26] common: Introduce processor.h Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 16/26] scripts: Fix the inclusion order in modpost Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 17/26] linux/elfnote.h: Replace elf.h with UAPI equivalent Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 18/26] arm64: vdso32: Replace TASK_SIZE_32 check in vgettimeofday Vincenzo Frascino
2020-03-17 14:38   ` Catalin Marinas
2020-03-17 15:04     ` Vincenzo Frascino
2020-03-17 15:50       ` Catalin Marinas
2020-03-17 16:40         ` Vincenzo Frascino
2020-03-17 16:43           ` Vincenzo Frascino
2020-03-17 17:48           ` Catalin Marinas
2020-03-18 16:14             ` Vincenzo Frascino
2020-03-18 18:36               ` Catalin Marinas
2020-03-19 12:38                 ` Vincenzo Frascino
2020-03-19 18:10                   ` Catalin Marinas
2020-03-20 13:05                     ` Vincenzo Frascino
2020-03-20 14:22                       ` Catalin Marinas
2020-03-20 14:41                         ` Vincenzo Frascino
2020-03-19 15:49     ` Andy Lutomirski
2020-03-19 16:58       ` Vincenzo Frascino
2020-03-19 18:32         ` Will Deacon
2020-03-21 14:33   ` [tip: timers/core] arm64: vdso32: Code clean up tip-bot2 for Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 19/26] arm64: Introduce asm/vdso/processor.h Vincenzo Frascino
2020-03-17 17:52   ` Catalin Marinas
2020-03-17 12:22 ` Vincenzo Frascino [this message]
2020-03-17 12:22 ` [PATCH v4 21/26] arm64: vdso32: Include common headers in the vdso library Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 22/26] mips: vdso: Enable mips to use common headers Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 23/26] x86: vdso: Enable x86 " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 24/26] arm: vdso: Enable arm " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 25/26] lib: vdso: Enable " Vincenzo Frascino
2020-03-17 12:22 ` [PATCH v4 26/26] arm64: vdso32: Enable Clang Compilation Vincenzo Frascino

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