[dpdk-dev] [PATCH] cmdline: fix type format from unsigned to size_t for buffer size

[Jastrzebski, MichalX K]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Monday, March 23, 2015 12:47 PM
> To: Mrzyglod, DanielX T
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] cmdline: fix type format from unsigned to
> size_t for buffer size
> 
> Daniel,
> Without answer to the question from Olivier, this patch is going to be
> ignored.
> 
> 2015-02-24 12:03, Olivier MATZ:
> > Hi Daniel,
> >
> > On 02/20/2015 05:18 PM, Daniel Mrzyglod wrote:
> > > Function match_inst is used to take buffor using sizeof() which is size_t
> type.
> > > This modification also involved changing '%u' to '%zu' in printf function.
> > >
> > > Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
> > > ---
> > >   lib/librte_cmdline/cmdline_parse.c | 4 ++--
> > >   1 file changed, 2 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/lib/librte_cmdline/cmdline_parse.c
> b/lib/librte_cmdline/cmdline_parse.c
> > > index dfc885c..0821791 100644
> > > --- a/lib/librte_cmdline/cmdline_parse.c
> > > +++ b/lib/librte_cmdline/cmdline_parse.c
> > > @@ -138,7 +138,7 @@ nb_common_chars(const char * s1, const char *
> s2)
> > >    */
> > >   static int
> > >   match_inst(cmdline_parse_inst_t *inst, const char *buf,
> > > -	   unsigned int nb_match_token, void *resbuf, unsigned resbuf_size)
> > > +	   unsigned int nb_match_token, void *resbuf, size_t resbuf_size)
> > >   {
> > >   	unsigned int token_num=0;
> > >   	cmdline_parse_token_hdr_t * token_p;
> > > @@ -169,7 +169,7 @@ match_inst(cmdline_parse_inst_t *inst, const
> char *buf,
> > >
> > >   			if (token_hdr.offset > resbuf_size) {
> > >   				printf("Parse error(%s:%d): Token offset(%u)
> "
> > > -					"exceeds maximum size(%u)\n",
> > > +					"exceeds maximum size(%zu)\n",
> > >   					__FILE__, __LINE__,
> > >   					token_hdr.offset, resbuf_size);
> > >   				return -ENOBUFS;
> > >
> >
> >
> > Did you see a specific issue with the current code? (maybe a compilation
> > issue or a klocwork issue?)
Hi Olivier, Thomas
Yes, this is an issue reported by the static analysis tool.
> >
> > I think this patch is ok, but there are many places where this kind
> > of fixes should be applied in cmdline (cmdline_parse_*(),
> > cmdline_get_help_*(), etc.). Is there a motivation for changing it
> > only there?
The tool we use didn't reported other places, 
that is why Daniel send only this one change.
> >
> > Regards,
> > Olivier
> >
>