string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / include / linux / hw_breakpoint.h

diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 4d14a38..41235c9 100644 (file)
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -22,6 +22,8 @@ enum {
 
 static inline void hw_breakpoint_init(struct perf_event_attr *attr)
 {
+       memset(attr, 0, sizeof(*attr));
+
        attr->type = PERF_TYPE_BREAKPOINT;
        attr->size = sizeof(*attr);
        /*
@@ -53,7 +55,7 @@ register_user_hw_breakpoint(struct perf_event_attr *attr,
                            struct task_struct *tsk);
 
 /* FIXME: only change from the attr, and don't unregister */
-extern struct perf_event *
+extern int
 modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr);
 
 /*
@@ -89,9 +91,9 @@ 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; }
-static inline struct perf_event *
+static inline int
 modify_user_hw_breakpoint(struct perf_event *bp,
-                         struct perf_event_attr *attr) { return NULL; }
+                         struct perf_event_attr *attr) { return -ENOSYS; }
 static inline struct perf_event *
 register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
                                perf_overflow_handler_t  triggered,