linux-kernel - [tip: timers/core] linux/const.h: Extract common header for vDSO

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Message-ID: <158480121366.28353.9221456034218489518.tip-bot2@tip-bot2>
Date:   Sat, 21 Mar 2020 14:33:33 -0000
From:   "tip-bot2 for Vincenzo Frascino" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Vincenzo Frascino <vincenzo.frascino@....com>,
        Thomas Gleixner <tglx@...utronix.de>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: timers/core] linux/const.h: Extract common header for vDSO

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     8165b57bca2167acc150b708a9a6b7322f235e91
Gitweb:        https://git.kernel.org/tip/8165b57bca2167acc150b708a9a6b7322f235e91
Author:        Vincenzo Frascino <vincenzo.frascino@....com>
AuthorDate:    Fri, 20 Mar 2020 14:53:26 
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sat, 21 Mar 2020 15:23:53 +01:00

linux/const.h: Extract common header for vDSO

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

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/20200320145351.32292-2-vincenzo.frascino@arm.com

---
 include/linux/const.h |  5 +----
 include/vdso/const.h  | 10 ++++++++++
 2 files changed, 11 insertions(+), 4 deletions(-)
 create mode 100644 include/vdso/const.h

diff --git a/include/linux/const.h b/include/linux/const.h
index 7b55a55..81b8aae 100644
--- a/include/linux/const.h
+++ b/include/linux/const.h
@@ -1,9 +1,6 @@
 #ifndef _LINUX_CONST_H
 #define _LINUX_CONST_H
 
-#include <uapi/linux/const.h>
-
-#define UL(x)		(_UL(x))
-#define ULL(x)		(_ULL(x))
+#include <vdso/const.h>
 
 #endif /* _LINUX_CONST_H */
diff --git a/include/vdso/const.h b/include/vdso/const.h
new file mode 100644
index 0000000..94b385a
--- /dev/null
+++ b/include/vdso/const.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_CONST_H
+#define __VDSO_CONST_H
+
+#include <uapi/linux/const.h>
+
+#define UL(x)		(_UL(x))
+#define ULL(x)		(_ULL(x))
+
+#endif /* __VDSO_CONST_H */