netdev - Re: [patch iproute2-next] devlink: introduce -h[ex] cmdline option to allow dumping numbers in hex format

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Message-ID: <20220422161054.1db3c836@hermes.local>
Date:   Fri, 22 Apr 2022 16:10:54 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Shannon Nelson <snelson@...sando.io>
Cc:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
        sthemmin@...rosoft.com, dsahern@...il.com
Subject: Re: [patch iproute2-next] devlink: introduce -h[ex] cmdline option
 to allow dumping numbers in hex format

On Fri, 22 Apr 2022 14:36:21 -0700
Shannon Nelson <snelson@...sando.io> wrote:

> >   static int fmsg_value_show(struct dl *dl, int type, struct nlattr *nl_data)
> >   {
> > +	const char *num_fmt = dl->hex ? "%x" : "%u";
> > +	const char *num64_fmt = dl->hex ? "%"PRIx64 : "%"PRIu64;  
> 
> Can we get a leading "0x" on these to help identify that they are hex 
> digits?

Yes use %#x