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    Subject[PATCH v4 06/26] arm64: Introduce asm/vdso/clocksource.h
    Date
    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.

    Introduce asm/vdso/clocksource.h to contain all the arm64 specific
    functions that are suitable for vDSO inclusion.

    This header will be required by a future patch that will generalize
    vdso/clocksource.h.

    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/clocksource.h | 3 +--
    arch/arm64/include/asm/vdso/clocksource.h | 8 ++++++++
    2 files changed, 9 insertions(+), 2 deletions(-)
    create mode 100644 arch/arm64/include/asm/vdso/clocksource.h

    diff --git a/arch/arm64/include/asm/clocksource.h b/arch/arm64/include/asm/clocksource.h
    index eb82e9d95c5d..482185566b0c 100644
    --- a/arch/arm64/include/asm/clocksource.h
    +++ b/arch/arm64/include/asm/clocksource.h
    @@ -2,7 +2,6 @@
    #ifndef _ASM_CLOCKSOURCE_H
    #define _ASM_CLOCKSOURCE_H

    -#define VDSO_ARCH_CLOCKMODES \
    - VDSO_CLOCKMODE_ARCHTIMER
    +#include <asm/vdso/clocksource.h>

    #endif
    diff --git a/arch/arm64/include/asm/vdso/clocksource.h b/arch/arm64/include/asm/vdso/clocksource.h
    new file mode 100644
    index 000000000000..df6ea65c1dec
    --- /dev/null
    +++ b/arch/arm64/include/asm/vdso/clocksource.h
    @@ -0,0 +1,8 @@
    +/* SPDX-License-Identifier: GPL-2.0 */
    +#ifndef __ASM_VDSOCLOCKSOURCE_H
    +#define __ASM_VDSOCLOCKSOURCE_H
    +
    +#define VDSO_ARCH_CLOCKMODES \
    + VDSO_CLOCKMODE_ARCHTIMER
    +
    +#endif
    --
    2.25.1
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