ring_buffer: remove unused flags parameter

Impact: API change, cleanup

>From ring_buffer_{lock_reserve,unlock_commit}.

$ codiff /tmp/vmlinux.before /tmp/vmlinux.after
linux-2.6-tip/kernel/trace/trace.c:
  trace_vprintk              |  -14
  trace_graph_return         |  -14
  trace_graph_entry          |  -10
  trace_function             |   -8
  __ftrace_trace_stack       |   -8
  ftrace_trace_userstack     |   -8
  tracing_sched_switch_trace |   -8
  ftrace_trace_special       |  -12
  tracing_sched_wakeup_trace |   -8
 9 functions changed, 90 bytes removed, diff: -90

linux-2.6-tip/block/blktrace.c:
  __blk_add_trace |   -1
 1 function changed, 1 bytes removed, diff: -1

/tmp/vmlinux.after:
 10 functions changed, 91 bytes removed, diff: -91

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 8 deletions

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index ec78e244242e..104ddebc11d1 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -307,10 +307,8 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
 {
         struct ring_buffer_event *event;
         struct trace_mmiotrace_rw *entry;
-        unsigned long irq_flags;
 
-        event   = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
-                                           &irq_flags);
+        event   = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
         if (!event) {
                 atomic_inc(&dropped_count);
                 return;
@@ -319,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
         tracing_generic_entry_update(&entry->ent, 0, preempt_count());
         entry->ent.type                 = TRACE_MMIO_RW;
         entry->rw                       = *rw;
-        ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+        ring_buffer_unlock_commit(tr->buffer, event);
 
         trace_wake_up();
 }
@@ -337,10 +335,8 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
 {
         struct ring_buffer_event *event;
         struct trace_mmiotrace_map *entry;
-        unsigned long irq_flags;
 
-        event   = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
-                                           &irq_flags);
+        event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
         if (!event) {
                 atomic_inc(&dropped_count);
                 return;
@@ -349,7 +345,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
         tracing_generic_entry_update(&entry->ent, 0, preempt_count());
         entry->ent.type                 = TRACE_MMIO_MAP;
         entry->map                      = *map;
-        ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+        ring_buffer_unlock_commit(tr->buffer, event);
 
         trace_wake_up();
 }