Re: [PATCH v4] eal: redefine logtype values

["De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Olivier MATZ
> Sent: Wednesday, April 19, 2017 1:15 PM
> To: De Lara Guarch, Pablo
> Cc: thomas@monjalon.net; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v4] eal: redefine logtype values
> 
> Hi Pablo,
> 
> On Wed, 19 Apr 2017 12:24:04 +0100, Pablo de Lara
> <pablo.de.lara.guarch@intel.com> wrote:
> > After the changes in commit c1b5fa94a46f
> > ("eal: support dynamic log types"), logtype is not treated as a
> > bitmask, but a decimal value. Therefore, values have to be
> > converted.
> >
> > Fixes: c1b5fa94a46f ("eal: support dynamic log types")
> >
> > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> > ---
> >
> > Changes in v4:
> > - Moved log type strings to eal_common_log.c
> >
> > Changes in v3:
> > - Created array of structures containing logtype id and string
> > - Added left shift to convert new decimal values to bitmask for backward
> compatibility
> >
> > Changes in v2:
> > - Used new RTE_LOGTYPE values in rte_log_init()
> >
> >  lib/librte_eal/common/eal_common_log.c  | 73
> ++++++++++++++++++++-------------
> >  lib/librte_eal/common/include/rte_log.h | 58 +++++++++++++-------------
> >  2 files changed, 73 insertions(+), 58 deletions(-)
> >
> > diff --git a/lib/librte_eal/common/eal_common_log.c
> b/lib/librte_eal/common/eal_common_log.c
> > index dd4d30c..fd76612 100644
> > --- a/lib/librte_eal/common/eal_common_log.c
> > +++ b/lib/librte_eal/common/eal_common_log.c
> > @@ -118,9 +118,9 @@ rte_set_log_type(uint32_t type, int enable)
> >  {
> >  	if (type < RTE_LOGTYPE_FIRST_EXT_ID) {
> >  		if (enable)
> > -			rte_logs.type |= type;
> > +			rte_logs.type |= 1 << type;
> >  		else
> > -			rte_logs.type &= ~type;
> > +			rte_logs.type &= ~(1 << type);
> >  	}
> >
> >  	if (enable)
> > @@ -240,42 +240,57 @@ rte_log_register(const char *name)
> >  	return ret;
> >  }
> >
> > +struct logtype {
> > +	uint32_t log_id;
> > +	char logtype[32];
> > +};
> 
> Sorry I missed it in the previous review, but what do you think of
> using "const char *" instead of "char[32]"?

Right, I thought I needed to reserve the memory in the structure definition,
but sure, that works too :)

v5 on the way...