[dpdk-dev] [PATCH] examples/ip_pipeline: fix build error for gcc 4.8

[Jastrzebski, MichalX K]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Tuesday, June 14, 2016 9:04 PM
> To: Mrzyglod, DanielX T <danielx.t.mrzyglod at intel.com>
> Cc: dev at dpdk.org; Singh, Jasvinder <jasvinder.singh at intel.com>;
> Dumitrescu, Cristian <cristian.dumitrescu at intel.com>
> Subject: Re: [dpdk-dev] [PATCH] examples/ip_pipeline: fix build error for gcc
> 4.8
> 
> 2016-06-09 13:38, Daniel Mrzyglod:
> > This patch fixes a maybe-uninitialized warning when compiling DPDK with
> GCC 4.8
> >
> > examples/ip_pipeline/pipeline/pipeline_common_fe.c: In function
> 'app_pipeline_track_pktq_out_to_link':
> > examples/ip_pipeline/pipeline/pipeline_common_fe.c:66:31: error:
> > 'reader' may be used uninitialized in this function [-Werror=maybe-
> uninitialized]
> >
> >    struct app_pktq_out_params *pktq_out =
> >
> > Fixes: 760064838ec0 ("examples/ip_pipeline: link routing output ports to
> devices")
> >
> > Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
> 
> For a weird reason, this patch triggers a new error:
> 
> examples/ip_pipeline/pipeline/pipeline_common_fe.c:In function
> ‘app_pipeline_track_pktq_out_to_link’:
> examples/ip_pipeline/pipeline/pipeline_common_fe.c:124:11:
> error: ‘id’ may be used uninitialized in this function [-Werror=maybe-
> uninitialized]
>     status = ptype->fe_ops->f_track(&pp,
>            ^
> In file included from
> examples/ip_pipeline/pipeline/pipeline_common_fe.h:44:0,
>                  from examples/ip_pipeline/pipeline/pipeline_common_fe.c:47:
> examples/ip_pipeline/app.h:734:26: note: ‘id’ was declared here
>   uint32_t n_readers = 0, id, i;
>                           ^
> examples/ip_pipeline/pipeline/pipeline_common_fe.c:97:11:
> error: ‘id’ may be used uninitialized in this function [-Werror=maybe-
> uninitialized]
>     status = ptype->fe_ops->f_track(&pp,
>            ^
> In file included from
> examples/ip_pipeline/pipeline/pipeline_common_fe.h:44:0,
>                  from examples/ip_pipeline/pipeline/pipeline_common_fe.c:47:
> examples/ip_pipeline/app.h:674:26: note: ‘id’ was declared here
>   uint32_t n_readers = 0, id, i;
>                           ^

Hi Thomas,
Do You have this error on the same environment?