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    Subject[patch 4/7] powerpc 2.6.20-rt8: fix compile error (futex.h)

    To fix the following compile error by adding dummy functions for now.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    include/asm-powerpc/futex.h
    kernel/built-in.o: In function `fixup_pi_state_owner64':
    kernel/futex.c:2380: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    kernel/built-in.o: In function `futex_lock_pi64':
    kernel/futex.c:3228: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    kernel/futex.c:3273: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    kernel/futex.c:3310: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    kernel/built-in.o: In function `futex_requeue_pi64':
    kernel/futex.c:2756: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    kernel/built-in.o: In function `do_futex64':
    kernel/futex.c:2547: undefined reference to `.futex_atomic_op_inuser64'
    kernel/futex.c:3446: undefined reference to `.futex_atomic_cmpxchg_inatomic64'
    :
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    Signed-off-by: Tsutomu Owa <tsutomu.owa@toshiba.co.jp>
    -- owa

    diff -rup linux-rt8/include/asm-powerpc/futex.h rt/include/asm-powerpc/futex.h
    --- linux-rt8/include/asm-powerpc/futex.h 2007-02-20 09:37:26.000000000 +0900
    +++ rt/include/asm-powerpc/futex.h 2007-03-05 10:36:15.000000000 +0900
    @@ -113,5 +113,25 @@ futex_atomic_cmpxchg_inatomic(int __user
    return prev;
    }

    +static inline int
    +futex_atomic_op_inuser64 (int encoded_op, u64 __user *uaddr)
    +{
    + /* FIXME: implement this at some point! */
    + printk("futex_atomic_op_inuser64: not yet.\n");
    + BUG();
    +
    + return 0;
    +}
    +
    +static inline u64
    +futex_atomic_cmpxchg_inatomic64(u64 __user *uaddr, u64 oldval, u64 newval)
    +{
    + /* FIXME: implement this at some point! */
    + printk("futex_atomic_cmpxchg_inatomic64: not yet.\n");
    + BUG();
    +
    + return 0;
    +}
    +
    #endif /* __KERNEL__ */
    #endif /* _ASM_POWERPC_FUTEX_H */
    -
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