Duplicate fields in event format of `regcache_sync `

[Philippe Duplessis-Guindon <pduplessis@efficios.com>]

Hi,

I am doing an ftrace plugin for Babeltrace 2 [1], and while I was 
parsing the event fields I had an error saying that `regcache_sync` has 
2 fields named `type`. The problem seems to come from the 
drivers/base/regmap/trace.h file [2]. This is the patch where this was 
added: [3]. The `int field` type is not assigned, so I was wondering if 
it is normal that the field is there.

This is the format of this event:

$ sudo cat /sys/kernel/debug/tracing/events/regmap/regcache_sync/format
name: regcache_sync
ID: 1216
format:
   field:unsigned short common_type;    offset:0;    size:2;    signed:0;
   field:unsigned char common_flags;    offset:2;    size:1;    signed:0;
   field:unsigned char common_preempt_count; offset:3; size:1;signed:0;
   field:int common_pid;    offset:4;    size:4;    signed:1;

   field:__data_loc char[] name;    offset:8;    size:4;    signed:1;
   field:__data_loc char[] status;    offset:12;    size:4;    signed:1;
   field:__data_loc char[] type;    offset:16;    size:4;    signed:1;
   field:int type;    offset:20;    size:4;    signed:1;

   print fmt: "%s type=%s status=%s", __get_str(name), __get_str(type), 
__get_str(status)

Thank you,

Philippe


[1] https://babeltrace.org/

[2] 
https://github.com/torvalds/linux/blob/master/drivers/base/regmap/trace.h#L129

[3] 
https://github.com/torvalds/linux/commit/593600890110c02eb471cf844649dee213870416