tracing: Use a global field list for all syscall exit events

All syscall exit events have the same fields.

The kernel size drops 2.5K:

   text    data     bss     dec     hex filename
7018612 2034376 7251132 16304120         f8c7f8 vmlinux.o.orig
7018612 2031888 7251132 16301632         f8be40 vmlinux.o

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4BFA3746.8070100@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 257e08960d7b..31966a4fb8cc 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -26,7 +26,6 @@ struct syscall_metadata {
         const char      **types;
         const char      **args;
         struct list_head enter_fields;
-        struct list_head exit_fields;
 
         struct ftrace_event_call *enter_event;
         struct ftrace_event_call *exit_event;