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    Subject[patch 14/28] posix-timers: Remove useless res field from k_clock
    The res member of kclock is only used by mmtimer.c, but even there it
    contains redundant information. Remove the field and fixup mmtimer.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Cc: John Stultz <john.stultz@linaro.org>
    Cc: Richard Cochran <richard.cochran@omicron.at>
    ---
    drivers/char/mmtimer.c | 5 ++---
    include/linux/posix-timers.h | 1 -
    kernel/posix-timers.c | 2 --
    3 files changed, 2 insertions(+), 6 deletions(-)

    Index: linux-2.6-tip/drivers/char/mmtimer.c
    ===================================================================
    --- linux-2.6-tip.orig/drivers/char/mmtimer.c
    +++ linux-2.6-tip/drivers/char/mmtimer.c
    @@ -768,12 +768,11 @@ static int sgi_timer_set(struct k_itimer
    static int sgi_clock_getres(const clockid_t which_clock, struct timespec *tp)
    {
    tp->tv_sec = 0;
    - tp->tv_nsec = sgi_clock.res;
    + tp->tv_nsec = sgi_clock_period;
    return 0;
    }

    static struct k_clock sgi_clock = {
    - .res = 0,
    .clock_set = sgi_clock_set,
    .clock_get = sgi_clock_get,
    .clock_getres = sgi_clock_getres,
    @@ -840,7 +839,7 @@ static int __init mmtimer_init(void)
    (unsigned long) node);
    }

    - sgi_clock_period = sgi_clock.res = NSEC_PER_SEC / sn_rtc_cycles_per_second;
    + sgi_clock_period = NSEC_PER_SEC / sn_rtc_cycles_per_second;
    register_posix_clock(CLOCK_SGI_CYCLE, &sgi_clock);

    printk(KERN_INFO "%s: v%s, %ld MHz\n", MMTIMER_DESC, MMTIMER_VERSION,
    Index: linux-2.6-tip/include/linux/posix-timers.h
    ===================================================================
    --- linux-2.6-tip.orig/include/linux/posix-timers.h
    +++ linux-2.6-tip/include/linux/posix-timers.h
    @@ -67,7 +67,6 @@ struct k_itimer {
    };

    struct k_clock {
    - int res; /* in nanoseconds */
    int (*clock_getres) (const clockid_t which_clock, struct timespec *tp);
    int (*clock_set) (const clockid_t which_clock,
    const struct timespec *tp);
    Index: linux-2.6-tip/kernel/posix-timers.c
    ===================================================================
    --- linux-2.6-tip.orig/kernel/posix-timers.c
    +++ linux-2.6-tip/kernel/posix-timers.c
    @@ -204,8 +204,6 @@ static inline int invalid_clockid(const
    return 1;
    if (posix_clocks[which_clock].clock_getres != NULL)
    return 0;
    - if (posix_clocks[which_clock].res != 0)
    - return 0;
    return 1;
    }




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