netdev - Re: [PATCH RFC iproute2-next 2/2] rdma: print provider resource attributes

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Message-ID: <20180502073216.0794a08a@xeon-e3>
Date:   Wed, 2 May 2018 07:32:16 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Steve Wise <swise@...ngridcomputing.com>, dsahern@...il.com,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org
Subject: Re: [PATCH RFC iproute2-next 2/2] rdma: print provider resource
 attributes

On Wed, 2 May 2018 16:38:52 +0300
Leon Romanovsky <leon@...nel.org> wrote:

> On Mon, Apr 30, 2018 at 08:25:24AM -0700, Stephen Hemminger wrote:
> > On Mon, 30 Apr 2018 07:36:18 -0700
> > Steve Wise <swise@...ngridcomputing.com> wrote:
> >  
> > > +#define nla_type(attr) ((attr)->nla_type & NLA_TYPE_MASK)
> > > +
> > > +void newline(struct rd *rd)
> > > +{
> > > +	if (rd->json_output)
> > > +		jsonw_end_array(rd->jw);
> > > +	else
> > > +		pr_out("\n");
> > > +}
> > > +
> > > +void newline_indent(struct rd *rd)
> > > +{
> > > +	newline(rd);
> > > +	if (!rd->json_output)
> > > +		pr_out("    ");
> > > +}
> > > +
> > > +static int print_provider_string(struct rd *rd, const char *key_str,
> > > +				 const char *val_str)
> > > +{
> > > +	if (rd->json_output) {
> > > +		jsonw_string_field(rd->jw, key_str, val_str);
> > > +		return 0;
> > > +	} else {
> > > +		return pr_out("%s %s ", key_str, val_str);
> > > +	}
> > > +}
> > > +
> > > +static int print_provider_s32(struct rd *rd, const char *key_str, int32_t val,
> > > +			      enum rdma_nldev_print_type print_type)
> > > +{
> > > +	if (rd->json_output) {
> > > +		jsonw_int_field(rd->jw, key_str, val);
> > > +		return 0;
> > > +	}
> > > +	switch (print_type) {
> > > +	case RDMA_NLDEV_PRINT_TYPE_UNSPEC:
> > > +		return pr_out("%s %d ", key_str, val);
> > > +	case RDMA_NLDEV_PRINT_TYPE_HEX:
> > > +		return pr_out("%s 0x%x ", key_str, val);
> > > +	default:
> > > +		return -EINVAL;
> > > +	}
> > > +}
> > > +  
> >
> > This code should get converted to json_print library that handles the
> > different output modes; rather than rolling it's own equivalent functionality.  
> 
> Can it be done after this patch is merged? It will simplify review and
> testing because current code is implemented to be in the same format as
> the rest of the tool.
> 
> Thanks

Sure, I was just encouraging future direction.

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