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linux-next/include/vdso/clocksource.h

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linux/clocksource.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 clocksource.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/20200320145351.32292-9-vincenzo.frascino@arm.com
2020-03-20 22:53:33 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __VDSO_CLOCKSOURCE_H
#define __VDSO_CLOCKSOURCE_H
#include <vdso/limits.h>
vdso: Fix clocksource.h macro detection CONFIG_GENERIC_GETTIMEOFDAY is a sufficient condition to verify if an architecture implements asm/vdso/clocksource.h or not. The current implementation wrongly assumes that the same is true for the config option CONFIG_ARCH_CLOCKSOURCE_DATA. This results in a series of build errors on ia64/sparc/sparc64 like this: In file included from ./include/linux/clocksource.h:31, from ./include/linux/clockchips.h:14, from ./include/linux/tick.h:8, from fs/proc/stat.c:15: ./include/vdso/clocksource.h:9:10: fatal error: asm/vdso/clocksource.h: No such file or directory 9 | #include <asm/vdso/clocksource.h> | ^~~~~~~~~~~~~~~~~~~~~~~~ Fix the issue removing the unneeded config condition. Fixes: 14ee2ac618e4 ("linux/clocksource.h: Extract common header for vDSO") Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200323133920.46546-1-vincenzo.frascino@arm.com
2020-03-23 21:39:20 +08:00
#ifdef CONFIG_GENERIC_GETTIMEOFDAY
linux/clocksource.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 clocksource.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/20200320145351.32292-9-vincenzo.frascino@arm.com
2020-03-20 22:53:33 +08:00
#include <asm/vdso/clocksource.h>
vdso: Fix clocksource.h macro detection CONFIG_GENERIC_GETTIMEOFDAY is a sufficient condition to verify if an architecture implements asm/vdso/clocksource.h or not. The current implementation wrongly assumes that the same is true for the config option CONFIG_ARCH_CLOCKSOURCE_DATA. This results in a series of build errors on ia64/sparc/sparc64 like this: In file included from ./include/linux/clocksource.h:31, from ./include/linux/clockchips.h:14, from ./include/linux/tick.h:8, from fs/proc/stat.c:15: ./include/vdso/clocksource.h:9:10: fatal error: asm/vdso/clocksource.h: No such file or directory 9 | #include <asm/vdso/clocksource.h> | ^~~~~~~~~~~~~~~~~~~~~~~~ Fix the issue removing the unneeded config condition. Fixes: 14ee2ac618e4 ("linux/clocksource.h: Extract common header for vDSO") Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200323133920.46546-1-vincenzo.frascino@arm.com
2020-03-23 21:39:20 +08:00
#endif /* CONFIG_GENERIC_GETTIMEOFDAY */
linux/clocksource.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 clocksource.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/20200320145351.32292-9-vincenzo.frascino@arm.com
2020-03-20 22:53:33 +08:00
enum vdso_clock_mode {
VDSO_CLOCKMODE_NONE,
#ifdef CONFIG_GENERIC_GETTIMEOFDAY
VDSO_ARCH_CLOCKMODES,
#endif
VDSO_CLOCKMODE_MAX,
/* Indicator for time namespace VDSO */
VDSO_CLOCKMODE_TIMENS = INT_MAX
};
#endif /* __VDSO_CLOCKSOURCE_H */
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