[PATCH] net/iavf: fix old GCC compilation warnings
Zhichao Zeng
zhichaox.zeng at intel.com
Fri Jun 9 07:41:56 CEST 2023
The code uses the Wimplicit-fallthrough compile option to ignore
falls through warnings in switch case, but this option was introduced
by GCC 7 and old GCC do not recognize the option.
Add judgment to avoid warnings about unrecognized options in old GCC.
Fixes: 95a1b0b23140 ("net/iavf: support Rx timestamp offload on SSE")
Fixes: 4f58266da4d3 ("net/iavf: support Rx timestamp offload on AVX2")
Fixes: d65eadb9e178 ("net/iavf: support Rx timestamp offload on AVX512")
Signed-off-by: Zhichao Zeng <zhichaox.zeng at intel.com>
---
drivers/net/iavf/iavf_rxtx_vec_avx2.c | 10 +++++++---
drivers/net/iavf/iavf_rxtx_vec_avx512.c | 10 +++++++---
drivers/net/iavf/iavf_rxtx_vec_sse.c | 10 +++++++---
3 files changed, 21 insertions(+), 9 deletions(-)
diff --git a/drivers/net/iavf/iavf_rxtx_vec_avx2.c b/drivers/net/iavf/iavf_rxtx_vec_avx2.c
index 86290c4bbb..25094d5958 100644
--- a/drivers/net/iavf/iavf_rxtx_vec_avx2.c
+++ b/drivers/net/iavf/iavf_rxtx_vec_avx2.c
@@ -1397,8 +1397,10 @@ _iavf_recv_raw_pkts_vec_avx2_flex_rxd(struct iavf_rx_queue *rxq,
(_mm256_castsi256_si128(status0_7)));
received += burst;
#ifndef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
if (rxq->offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) {
inflection_point = (inflection_point <= burst) ? inflection_point : 0;
switch (inflection_point) {
@@ -1436,7 +1438,9 @@ _iavf_recv_raw_pkts_vec_avx2_flex_rxd(struct iavf_rx_queue *rxq,
rxq->hw_time_update = rte_get_timer_cycles() / (rte_get_timer_hz() / 1000);
}
-#pragma GCC diagnostic pop
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic pop
+#endif
#endif
if (burst != IAVF_DESCS_PER_LOOP_AVX)
break;
diff --git a/drivers/net/iavf/iavf_rxtx_vec_avx512.c b/drivers/net/iavf/iavf_rxtx_vec_avx512.c
index f9961e53b8..b74a6443b3 100644
--- a/drivers/net/iavf/iavf_rxtx_vec_avx512.c
+++ b/drivers/net/iavf/iavf_rxtx_vec_avx512.c
@@ -1551,8 +1551,10 @@ _iavf_recv_raw_pkts_vec_avx512_flex_rxd(struct iavf_rx_queue *rxq,
received += burst;
#ifndef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
#ifdef IAVF_RX_TS_OFFLOAD
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
if (rxq->offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) {
inflection_point = (inflection_point <= burst) ? inflection_point : 0;
switch (inflection_point) {
@@ -1590,7 +1592,9 @@ _iavf_recv_raw_pkts_vec_avx512_flex_rxd(struct iavf_rx_queue *rxq,
rxq->hw_time_update = rte_get_timer_cycles() / (rte_get_timer_hz() / 1000);
}
-#pragma GCC diagnostic pop
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic pop
+#endif
#endif
#endif
if (burst != IAVF_DESCS_PER_LOOP_AVX)
diff --git a/drivers/net/iavf/iavf_rxtx_vec_sse.c b/drivers/net/iavf/iavf_rxtx_vec_sse.c
index b754122c51..ff364d4fe5 100644
--- a/drivers/net/iavf/iavf_rxtx_vec_sse.c
+++ b/drivers/net/iavf/iavf_rxtx_vec_sse.c
@@ -1126,8 +1126,10 @@ _recv_raw_pkts_vec_flex_rxd(struct iavf_rx_queue *rxq,
nb_pkts_recd += var;
#ifndef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
if (rxq->offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) {
inflection_point = (inflection_point <= var) ? inflection_point : 0;
switch (inflection_point) {
@@ -1153,7 +1155,9 @@ _recv_raw_pkts_vec_flex_rxd(struct iavf_rx_queue *rxq,
rxq->hw_time_update = rte_get_timer_cycles() / (rte_get_timer_hz() / 1000);
}
-#pragma GCC diagnostic pop
+#if __GNUC__ >= 7
+ #pragma GCC diagnostic pop
+#endif
#endif
if (likely(var != IAVF_VPMD_DESCS_PER_LOOP))
--
2.34.1
More information about the dev
mailing list