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UPSTREAM: linux/const.h: Extract common header for vDSO

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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@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200320145351.32292-2-vincenzo.frascino@arm.com
(cherry picked from commit 8165b57bca2167acc150b708a9a6b7322f235e91)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154668398
Change-Id: I8411963b53e307e1fa77aa58b54d4206dc382b13
This commit is contained in:
Vincenzo Frascino 2020-03-20 14:53:26 +00:00 committed by Alistair Delva
parent cf1b4a8a67
commit 9c1af56e48
2 changed files with 11 additions and 4 deletions
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5
include/linux/const.h
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@ -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 */

10
include/vdso/const.h Normal file
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@ -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 */