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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, linux-mips@vger.kernel.org,
	clang-built-linux@googlegroups.com, x86@kernel.org
Cc: catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de,
	linux@armlinux.org.uk, paul.burton@mips.com, tglx@linutronix.de,
	luto@kernel.org, mingo@redhat.com, bp@alien8.de,
	sboyd@kernel.org, salyzyn@android.com, pcc@google.com,
	0x7f454c46@gmail.com, ndesaulniers@google.com, avagin@openvz.org
Subject: [PATCH 06/19] linux/time32.h: Extract common header for vDSO
Date: Thu, 13 Feb 2020 16:16:01 +0000
Message-ID: <20200213161614.23246-7-vincenzo.frascino@arm.com> (raw)
In-Reply-To: <20200213161614.23246-1-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.

Split time32.h into linux and common headers to make the latter suitable
for inclusion in the vDSO library.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 include/common/time32.h | 17 +++++++++++++++++
 include/linux/time32.h  | 13 +------------
 2 files changed, 18 insertions(+), 12 deletions(-)
 create mode 100644 include/common/time32.h

diff --git a/include/common/time32.h b/include/common/time32.h
new file mode 100644
index 000000000000..d5b85abdfaf1
--- /dev/null
+++ b/include/common/time32.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __COMMON_TIME32_H
+#define __COMMON_TIME32_H
+
+typedef s32		old_time32_t;
+
+struct old_timespec32 {
+	old_time32_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct old_timeval32 {
+	old_time32_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* __COMMON_TIME32_H */
diff --git a/include/linux/time32.h b/include/linux/time32.h
index cad4c3186002..39ff2f55e8d7 100644
--- a/include/linux/time32.h
+++ b/include/linux/time32.h
@@ -11,21 +11,10 @@
 
 #include <linux/time64.h>
 #include <linux/timex.h>
+#include <common/time32.h>
 
 #define TIME_T_MAX	(__kernel_old_time_t)((1UL << ((sizeof(__kernel_old_time_t) << 3) - 1)) - 1)
 
-typedef s32		old_time32_t;
-
-struct old_timespec32 {
-	old_time32_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct old_timeval32 {
-	old_time32_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct old_itimerspec32 {
 	struct old_timespec32 it_interval;
 	struct old_timespec32 it_value;
-- 
2.25.0


  parent reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 16:15 [PATCH 00/19] Introduce common headers Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 01/19] linux/const.h: Extract common header for vDSO Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 02/19] linux/bits.h: " Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 03/19] linux/limits.h: " Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 04/19] linux/math64.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 05/19] linux/time.h: " Vincenzo Frascino
2020-02-13 16:16 ` Vincenzo Frascino [this message]
2020-02-13 16:16 ` [PATCH 07/19] linux/time64.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 08/19] linux/jiffies.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 09/19] linux/ktime.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 10/19] common: Introduce processor.h Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 11/19] linux/elfnote.h: Replace elf.h with UAPI equivalent Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 12/19] arm64: Introduce asm/common/processor.h Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 13/19] arm64: vdso: Include common headers in the vdso library Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 14/19] arm64: vdso32: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 15/19] mips: vdso: Enable mips to use common headers Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 16/19] x86: vdso: Enable x86 " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 17/19] arm: vdso: Enable arm " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 18/19] lib: vdso: Enable " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 19/19] arm64: vdso32: Enable Clang Compilation Vincenzo Frascino
2020-02-13 18:44   ` Nathan Chancellor
2020-02-17 12:26     ` Vincenzo Frascino
2020-02-17 16:46       ` Will Deacon
2020-02-17 22:39         ` Ard Biesheuvel
2020-02-18 13:03           ` Vincenzo Frascino

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