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    Subject[PATCH 02/23] y2038: add __kernel_old_timespec and __kernel_old_time_t
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    The 'struct timespec' definition can no longer be part of the uapi headers
    because it conflicts with a a now incompatible libc definition. Also,
    we really want to remove it in order to prevent new uses from creeping in.

    The same namespace conflict exists with time_t, which should also be
    removed. __kernel_time_t could be used safely, but adding 'old' in the
    name makes it clearer that this should not be used for new interfaces.

    Add a replacement __kernel_old_timespec structure and __kernel_old_time_t
    along the lines of __kernel_old_timeval.

    Signed-off-by: Arnd Bergmann <arnd@arndb.de>
    ---
    include/uapi/asm-generic/posix_types.h | 1 +
    include/uapi/linux/time_types.h | 5 +++++
    2 files changed, 6 insertions(+)

    diff --git a/include/uapi/asm-generic/posix_types.h b/include/uapi/asm-generic/posix_types.h
    index f0733a26ebfc..2f9c80595ba7 100644
    --- a/include/uapi/asm-generic/posix_types.h
    +++ b/include/uapi/asm-generic/posix_types.h
    @@ -86,6 +86,7 @@ typedef struct {
    */
    typedef __kernel_long_t __kernel_off_t;
    typedef long long __kernel_loff_t;
    +typedef __kernel_long_t __kernel_old_time_t;
    typedef __kernel_long_t __kernel_time_t;
    typedef long long __kernel_time64_t;
    typedef __kernel_long_t __kernel_clock_t;
    diff --git a/include/uapi/linux/time_types.h b/include/uapi/linux/time_types.h
    index 27bfc8fc6904..60b37f29842d 100644
    --- a/include/uapi/linux/time_types.h
    +++ b/include/uapi/linux/time_types.h
    @@ -28,6 +28,11 @@ struct __kernel_old_timeval {
    };
    #endif

    +struct __kernel_old_timespec {
    + __kernel_time_t tv_sec; /* seconds */
    + long tv_nsec; /* nanoseconds */
    +};
    +
    struct __kernel_sock_timeval {
    __s64 tv_sec;
    __s64 tv_usec;
    --
    2.20.0
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