[net-next,v3,0/3] reorganize the code of the enum skb_drop_reason

Message

Menglong Dong June 1, 2022, 6:52 a.m. UTC

From: Menglong Dong <[e-mail]>

The code of skb_drop_reason is a little wild, let's reorganize them.
Three things and three patches:

1) Move the enum 'skb_drop_reason' and related function to the standalone
   header 'dropreason.h', as Jakub Kicinski suggested, as the skb drop
   reasons are getting more and more.

2) use auto-generation to generate the source file that convert enum
   skb_drop_reason to string.

3) make the comment of skb drop reasons kernel-doc style.

Changes since v2:
2/3: - add new line in the end of .gitignore
     - fix awk warning by make '\;' to ';', as ';' is not need to be
       escaped
     - export 'drop_reasons' in skbuff.c

Changes since v1:
1/3: move dropreason.h from include/linux/ to include/net/ (Jakub Kicinski)
2/3: generate source file instead of header file for drop reasons string
     array (Jakub Kicinski)
3/3: use inline comment (Jakub Kicinski)

Menglong Dong (3):
  net: skb: move enum skb_drop_reason to standalone header file
  net: skb: use auto-generation to convert skb drop reason to string
  net: dropreason: reformat the comment fo skb drop reasons

 include/linux/skbuff.h     | 179 +-------------------------
 include/net/dropreason.h   | 257 +++++++++++++++++++++++++++++++++++++
 include/trace/events/skb.h |  89 +------------
 net/core/.gitignore        |   1 +
 net/core/Makefile          |  23 +++-
 net/core/drop_monitor.c    |  13 --
 net/core/skbuff.c          |   3 +
 7 files changed, 285 insertions(+), 280 deletions(-)
 create mode 100644 include/net/dropreason.h
 create mode 100644 net/core/.gitignore