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    Subject[tip:perf/urgent] hw-breakpoints: Let modify_user_hw_breakpoint() return an int
    Commit-ID:  4983ee49cf0393fd786891dd53af41146cf9f98b
    Gitweb: http://git.kernel.org/tip/4983ee49cf0393fd786891dd53af41146cf9f98b
    Author: Heiko Carstens <heiko.carstens@de.ibm.com>
    AuthorDate: Mon, 14 Dec 2009 10:24:12 +0100
    Committer: Ingo Molnar <mingo@elte.hu>
    CommitDate: Mon, 14 Dec 2009 10:42:57 +0100

    hw-breakpoints: Let modify_user_hw_breakpoint() return an int

    Let modify_user_hw_breakpoint return an int to avoid hundreds of
    compile warnings like this one:

    include/linux/hw_breakpoint.h: In function 'modify_user_hw_breakpoint':
    include/linux/hw_breakpoint.h:96:
    warning: return makes integer from pointer without a cast

    Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    LKML-Reference: <20091214092412.GA5242@osiris.boeblingen.de.ibm.com>
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
    ---
    include/linux/hw_breakpoint.h | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
    index 41235c9..3f3ac2f 100644
    --- a/include/linux/hw_breakpoint.h
    +++ b/include/linux/hw_breakpoint.h
    @@ -90,7 +90,7 @@ static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
    static inline struct perf_event *
    register_user_hw_breakpoint(struct perf_event_attr *attr,
    perf_overflow_handler_t triggered,
    - struct task_struct *tsk) { return NULL; }
    + struct task_struct *tsk) { return 0; }
    static inline int
    modify_user_hw_breakpoint(struct perf_event *bp,
    struct perf_event_attr *attr) { return -ENOSYS; }

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