[dpdk-dev] [PATCH 09/13] eal: replace rte_panic instances in common_memzone
Arnon Warshavsky
arnon at qwilt.com
Wed Apr 4 22:44:11 CEST 2018
Thanks. Will update the doxigen
On Wed, Apr 4, 2018 at 3:34 PM, Thomas Monjalon <thomas at monjalon.net> wrote:
> 04/04/2018 14:09, Burakov, Anatoly:
> > On 04-Apr-18 12:27 PM, Arnon Warshavsky wrote:
> > > replace panic calls with log and retrun value.
> > >
> > > Signed-off-by: Arnon Warshavsky <arnon at qwilt.com>
> > > ---
> > > lib/librte_eal/common/eal_common_memzone.c | 5 +++--
> > > 1 file changed, 3 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/lib/librte_eal/common/eal_common_memzone.c
> b/lib/librte_eal/common/eal_common_memzone.c
> > > index 1ab3ade..fa0a407 100644
> > > --- a/lib/librte_eal/common/eal_common_memzone.c
> > > +++ b/lib/librte_eal/common/eal_common_memzone.c
> > > @@ -314,8 +314,9 @@
> > > if (addr == NULL)
> > > ret = -EINVAL;
> > > else if (mcfg->memzone_cnt == 0) {
> > > - rte_panic("%s(): memzone address not NULL but memzone_cnt
> is 0!\n",
> > > - __func__);
> > > + RTE_LOG(CRIT, EAL, "%s(): memzone address not NULL but
> memzone_cnt"
> > > + " is 0!\n", __func__);
> > > + return -1;
> > > } else {
> > > memset(&mcfg->memzone[idx], 0, sizeof(mcfg->memzone[idx]));
> > > mcfg->memzone_cnt--;
> > >
> >
> > This changes public API. For now, memzone docs mention either return
> > value of 0, or return value of -EINVAL in case of invalid arguments:
> >
> > /**
> > * Free a memzone.
> > *
> > * @param mz
> > * A pointer to the memzone
> > * @return
> > * -EINVAL - invalid parameter.
> > * 0 - success
> > */
> >
> > I'm not sure returning -EINVAL is suitable in this case (the parameter
> > was valid, but an internal error happened - I can't think of any
> > suitable errno value off hand), and adding a new return value changes
> > API, which presumably would require a deprecation notice.
> >
> > Thomas?
>
> It does not fully change the API, since the success value is not changed.
> I think we can accept one more error value if doxygen is properly updated.
>
>
>
>
--
*Arnon Warshavsky*
*Qwilt | work: +972-72-2221634 | mobile: +972-50-8583058 | arnon at qwilt.com
<arnon at qwilt.com>*
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