[dpdk-dev] [PATCH v2] examples/ip_pipeline: fix build error for gcc 4.8

[Mrzyglod, DanielX T]

>-----Original Message-----
>From: Dumitrescu, Cristian
>Sent: Tuesday, June 21, 2016 7:44 PM
>To: Mrzyglod, DanielX T <danielx.t.mrzyglod at intel.com>; Singh, Jasvinder
><jasvinder.singh at intel.com>
>Cc: dev at dpdk.org
>Subject: RE: [PATCH v2] examples/ip_pipeline: fix build error for gcc 4.8
>
>
>
>> -----Original Message-----
>> From: Mrzyglod, DanielX T
>> Sent: Tuesday, June 21, 2016 10:36 AM
>> To: Singh, Jasvinder <jasvinder.singh at intel.com>; Dumitrescu, Cristian
>> <cristian.dumitrescu at intel.com>
>> Cc: dev at dpdk.org; Mrzyglod, DanielX T <danielx.t.mrzyglod at intel.com>
>> Subject: [PATCH v2] examples/ip_pipeline: fix build error for gcc 4.8
>>
>> 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>
>> Acked-by: Cristian Dumitrescu <cristian.dumitrescu at intel.com>
>> ---
>>  examples/ip_pipeline/app.h | 8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/examples/ip_pipeline/app.h b/examples/ip_pipeline/app.h
>> index 7611341..242dae8 100644
>> --- a/examples/ip_pipeline/app.h
>> +++ b/examples/ip_pipeline/app.h
>> @@ -667,11 +667,11 @@ app_swq_get_reader(struct app_params *app,
>>  	struct app_pktq_swq_params *swq,
>>  	uint32_t *pktq_in_id)
>>  {
>> -	struct app_pipeline_params *reader;
>> +	struct app_pipeline_params *reader = NULL;
>>  	uint32_t pos = swq - app->swq_params;
>>  	uint32_t n_pipelines = RTE_MIN(app->n_pipelines,
>>  		RTE_DIM(app->pipeline_params));
>> -	uint32_t n_readers = 0, id, i;
>> +	uint32_t n_readers = 0, id = 0, i;
>>
>>  	for (i = 0; i < n_pipelines; i++) {
>>  		struct app_pipeline_params *p = &app->pipeline_params[i];
>> @@ -727,11 +727,11 @@ app_tm_get_reader(struct app_params *app,
>>  	struct app_pktq_tm_params *tm,
>>  	uint32_t *pktq_in_id)
>>  {
>> -	struct app_pipeline_params *reader;
>> +	struct app_pipeline_params *reader = NULL;
>>  	uint32_t pos = tm - app->tm_params;
>>  	uint32_t n_pipelines = RTE_MIN(app->n_pipelines,
>>  		RTE_DIM(app->pipeline_params));
>> -	uint32_t n_readers = 0, id, i;
>> +	uint32_t n_readers = 0, id = 0, i;
>>
>>  	for (i = 0; i < n_pipelines; i++) {
>>  		struct app_pipeline_params *p = &app->pipeline_params[i];
>> --
>> 2.5.5
>
>
>No need for this patch, as these fixes have been already applied by Ethan's patch.
>
>Daniel, please check and let us know if otherwise.

You are correct