hw-breakpoints: Drop callback and task parameters from modify helper

Drop the callback and task parameters from modify_user_hw_breakpoint().
For now we have no user that need to modify a breakpoint to the point
of changing its handler or its task context.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index cf5ee1628411..2d10b012828f 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -312,9 +312,7 @@ EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
  * @tsk: pointer to 'task_struct' of the process to which the address belongs
  */
 struct perf_event *
-modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr,
-                          perf_callback_t triggered,
-                          struct task_struct *tsk)
+modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr)
 {
         /*
          * FIXME: do it without unregistering
@@ -323,7 +321,8 @@ modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr,
          */
         unregister_hw_breakpoint(bp);
 
-        return perf_event_create_kernel_counter(attr, -1, tsk->pid, triggered);
+        return perf_event_create_kernel_counter(attr, -1, bp->ctx->task->pid,
+                                                bp->callback);
 }
 EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);