[dpdk-dev] [PATCH v5 04/11] app/eventdev: clean LTO build warnings (maybe-uninitialized)

Andrzej Ostruszka aostruszka at marvell.com
Mon Oct 28 15:21:38 CET 2019


During LTO build compiler reports some 'false positive' warnings about
variables being possibly used uninitialized.  This patch silences these
warnings.

Exemplary compiler warning to suppress (with LTO enabled):
error: ‘service_id’ may be used uninitialized in this function
[-Werror=maybe-uninitialized]
    ret = evt_service_setup(service_id);

Signed-off-by: Andrzej Ostruszka <aostruszka at marvell.com>
---
 app/test-eventdev/test_perf_common.c     | 2 +-
 app/test-eventdev/test_pipeline_common.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/test-eventdev/test_perf_common.c b/app/test-eventdev/test_perf_common.c
index e24519179..e7cf75a7d 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -439,7 +439,7 @@ perf_event_timer_adapter_setup(struct test_perf *t)
 
 		if (!(adapter_info.caps &
 				RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT)) {
-			uint32_t service_id;
+			uint32_t service_id = -1U;
 
 			rte_event_timer_adapter_service_id_get(wl,
 					&service_id);
diff --git a/app/test-eventdev/test_pipeline_common.c b/app/test-eventdev/test_pipeline_common.c
index 386aca299..160461fb2 100644
--- a/app/test-eventdev/test_pipeline_common.c
+++ b/app/test-eventdev/test_pipeline_common.c
@@ -326,7 +326,7 @@ pipeline_event_rx_adapter_setup(struct evt_options *opt, uint8_t stride,
 		}
 
 		if (!(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT)) {
-			uint32_t service_id;
+			uint32_t service_id = -1U;
 
 			rte_event_eth_rx_adapter_service_id_get(prod,
 					&service_id);
@@ -378,7 +378,7 @@ pipeline_event_tx_adapter_setup(struct evt_options *opt,
 		}
 
 		if (!(cap & RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT)) {
-			uint32_t service_id;
+			uint32_t service_id = -1U;
 
 			rte_event_eth_tx_adapter_service_id_get(consm,
 					&service_id);
-- 
2.17.1



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