Re: [PATCH bpf-next 4/4] bpftool: Add struct_ops support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Mar 16, 2020 at 11:54:28AM +0000, Quentin Monnet wrote:

> [...]
> 
> > +static int do_unregister(int argc, char **argv)
> > +{
> > +	const char *search_type, *search_term;
> > +	struct res res;
> > +
> > +	if (argc != 2)
> > +		usage();
> 
> Or you could reuse the macros in main.h, for more consistency with other
> subcommands:
> 
> 	if (!REQ_ARGS(2))
> 		return -1;
Thanks for the review!

I prefer to print out "usage();" whenever possible but then "-j" gave
me a 'null' after a json error mesage ...

# bpftool -j struct_ops unregister
{"error":"'unregister' needs at least 2 arguments, 0 found"},null

Then I went without REQ_ARGS(2) which is similar to a few existing
cases like do_dump(), do_updaate()...etc in map.c.

That was my consideration.  However, I can go back to use REQ_ARGS(2)
and return -1 without printing usage.  no strong preference here.



[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux