netdev - Re: [PATCH iproute2-next v2 0/3] ip/tunnel: Unify tunnel help message print routines

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Date:   Fri, 9 Feb 2018 09:00:14 +0200
From:   Serhey Popovych <serhe.popovych@...il.com>
To:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next v2 0/3] ip/tunnel: Unify tunnel help message
 print routines

> To show only relevant diffs of ip and ipv6 variants help message print
> routines needs to be unified and improved.
> 
> Get rid of print_usage() and usage() wrappers: use single function to
> output help message. As side effect we return -1 from parse function
> instead of calling exit(2) in case of "... tunnel <help|garbage>" is
> found.
> 
> Additionally we get pointer to @struct link_util and can directly access
> ->id information to prepare customized help message.
> 
> Split calls to fprintf() two group: one that contains format string with
> specifiers (thus requiring parameters) and another one that does not.
> This helps compiler to optimize calls to fprintf() with fputs() when no
> format specifiers in string. Do not use fputs() directly to keep code
> formatting nice.
> 
> After this series applied following diffs:
> 
>   # diff -urN ip/link_gre{,6}.c
>   # diff -urN ip/link_vti{,6}.c
>   # diff -urN ip/link_ip{,6}tnl.c
> 
> in scope of help print routines reduced to necessary minimum.
> 
> Tested minimally by compiling and executing "ip link help <kind>" and
> "ip link add type help" commands. Looks correct.
> 
> See individual patch description for more information.
> 
> Reviews, commands and suggestions are welcome.
> 
> v2
>   Dropped function prefix changes from the series: this is not strictly
>   relared change and should be done separately.

There is v3 available, we have checkpatch and commit description
problems here.

> 
> Thanks,
> Serhii
> 
> Serhey Popovych (3):
>   vti/vti6: Unify vti_print_help()
>   gre/gre6: Unify gre_print_help()
>   iptnl/ip6tnl: Unify iptunnel_print_help()
> 
>  ip/link_gre.c    |   73 ++++++++++++++++++++------------------------
>  ip/link_gre6.c   |   74 +++++++++++++++++++++------------------------
>  ip/link_ip6tnl.c |   45 ++++++++++++++--------------
>  ip/link_iptnl.c  |   88 ++++++++++++++++++++++++++----------------------------
>  ip/link_vti.c    |   42 +++++++++++---------------
>  ip/link_vti6.c   |   33 +++++++++-----------
>  6 files changed, 165 insertions(+), 190 deletions(-)
> 




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