[dpdk-dev] [PATCH 2/2] net/mlx5: fix initialization of struct members

[Ali Alnubani <alialnu@mellanox.com>]

This patch fixes compilation errors with meson and the clang
compiler caused by some of the struct members not being
initialized.

```
../drivers/net/mlx5/mlx5_mr.c:345:37: error: missing field 'end'
initializer [-Werror,-Wmissing-field-initializers]
                struct mlx5_mr_cache entry = { 0, };
                                                  ^
../drivers/net/mlx5/mlx5_mr.c:389:36: error: missing field 'end'
initializer [-Werror,-Wmissing-field-initializers]
                        struct mlx5_mr_cache ret = { 0, };
                                                        ^
../drivers/net/mlx5/mlx5_mr.c:691:35: error: missing field 'end'
initializer [-Werror,-Wmissing-field-initializers]
                struct mlx5_mr_cache ret = { 0, };
                                                ^
```

The compilation errors reproduce with
clang version 3.4.2 (tags/RELEASE_34/dot2-final) on RHEL.

Fixes: e1114ff6a5ab ("net/mlx5: support e-switch flow count action")
Fixes: db48f9db5d9f ("net/mlx5: support new flow counter API")
Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support")
Fixes: 65c9d24170c9 ("net/mlx5: enable loopback by configured mode")
Fixes: 87011737b715 ("mlx5: add software counters")
Cc: stable@dpdk.org

Signed-off-by: Ali Alnubani <alialnu@mellanox.com>
---
 drivers/net/mlx5/mlx5_flow_tcf.c   | 3 ++-
 drivers/net/mlx5/mlx5_flow_verbs.c | 3 ++-
 drivers/net/mlx5/mlx5_mr.c         | 9 ++++++---
 drivers/net/mlx5/mlx5_rxq.c        | 3 ++-
 drivers/net/mlx5/mlx5_stats.c      | 3 ++-
 5 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow_tcf.c b/drivers/net/mlx5/mlx5_flow_tcf.c
index 790663e99..53cc83205 100644
--- a/drivers/net/mlx5/mlx5_flow_tcf.c
+++ b/drivers/net/mlx5/mlx5_flow_tcf.c
@@ -5542,7 +5542,7 @@ flow_tcf_query_count(struct rte_eth_dev *dev,
 			  void *data,
 			  struct rte_flow_error *error)
 {
-	struct flow_tcf_stats_basic sb_data = { 0 };
+	struct flow_tcf_stats_basic sb_data;
 	struct rte_flow_query_count *qc = data;
 	struct priv *priv = dev->data->dev_private;
 	struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
@@ -5553,6 +5553,7 @@ flow_tcf_query_count(struct rte_eth_dev *dev,
 	ssize_t ret;
 	assert(qc);
 
+	memset(&sb_data, 0, sizeof(sb_data));
 	dev_flow = LIST_FIRST(&flow->dev_flows);
 	/* E-Switch flow can't be expanded. */
 	assert(!LIST_NEXT(dev_flow, next));
diff --git a/drivers/net/mlx5/mlx5_flow_verbs.c b/drivers/net/mlx5/mlx5_flow_verbs.c
index d6d95db56..13fbf2496 100644
--- a/drivers/net/mlx5/mlx5_flow_verbs.c
+++ b/drivers/net/mlx5/mlx5_flow_verbs.c
@@ -68,9 +68,10 @@ flow_verbs_counter_create(struct rte_eth_dev *dev,
 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 	struct priv *priv = dev->data->dev_private;
 	struct ibv_counters_init_attr init = {0};
-	struct ibv_counter_attach_attr attach = {0};
+	struct ibv_counter_attach_attr attach;
 	int ret;
 
+	memset(&attach, 0, sizeof(attach));
 	counter->cs = mlx5_glue->create_counters(priv->ctx, &init);
 	if (!counter->cs) {
 		rte_errno = ENOTSUP;
diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
index f4b15d3f6..435eaeee2 100644
--- a/drivers/net/mlx5/mlx5_mr.c
+++ b/drivers/net/mlx5/mlx5_mr.c
@@ -342,8 +342,9 @@ mr_insert_dev_cache(struct rte_eth_dev *dev, struct mlx5_mr *mr)
 	DRV_LOG(DEBUG, "port %u inserting MR(%p) to global cache",
 		dev->data->port_id, (void *)mr);
 	for (n = 0; n < mr->ms_bmp_n; ) {
-		struct mlx5_mr_cache entry = { 0, };
+		struct mlx5_mr_cache entry;
 
+		memset(&entry, 0, sizeof(entry));
 		/* Find a contiguous chunk and advance the index. */
 		n = mr_find_next_chunk(mr, &entry, n);
 		if (!entry.end)
@@ -386,8 +387,9 @@ mr_lookup_dev_list(struct rte_eth_dev *dev, struct mlx5_mr_cache *entry,
 		if (mr->ms_n == 0)
 			continue;
 		for (n = 0; n < mr->ms_bmp_n; ) {
-			struct mlx5_mr_cache ret = { 0, };
+			struct mlx5_mr_cache ret;
 
+			memset(&ret, 0, sizeof(ret));
 			n = mr_find_next_chunk(mr, &ret, n);
 			if (addr >= ret.start && addr < ret.end) {
 				/* Found. */
@@ -688,8 +690,9 @@ mlx5_mr_create(struct rte_eth_dev *dev, struct mlx5_mr_cache *entry,
 	 */
 	for (n = 0; n < ms_n; ++n) {
 		uintptr_t start;
-		struct mlx5_mr_cache ret = { 0, };
+		struct mlx5_mr_cache ret;
 
+		memset(&ret, 0, sizeof(ret));
 		start = data_re.start + n * msl->page_sz;
 		/* Exclude memsegs already registered by other MRs. */
 		if (mr_lookup_dev(dev, &ret, start) == UINT32_MAX) {
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index eef485021..b27fc4798 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1782,7 +1782,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
 	struct mlx5_ind_table_ibv *ind_tbl;
 	struct ibv_qp *qp;
 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
-	struct mlx5dv_qp_init_attr qp_init_attr = {0};
+	struct mlx5dv_qp_init_attr qp_init_attr;
 #endif
 	int err;
 
@@ -1795,6 +1795,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
 		return NULL;
 	}
 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
+	memset(&qp_init_attr, 0, sizeof(qp_init_attr));
 	if (tunnel) {
 		qp_init_attr.comp_mask =
 				MLX5DV_QP_INIT_ATTR_MASK_QP_CREATE_FLAGS;
diff --git a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c
index a14d1e491..fccb9af0d 100644
--- a/drivers/net/mlx5/mlx5_stats.c
+++ b/drivers/net/mlx5/mlx5_stats.c
@@ -354,10 +354,11 @@ int
 mlx5_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 {
 	struct priv *priv = dev->data->dev_private;
-	struct rte_eth_stats tmp = {0};
+	struct rte_eth_stats tmp;
 	unsigned int i;
 	unsigned int idx;
 
+	memset(&tmp, 0, sizeof(tmp));
 	/* Add software counters. */
 	for (i = 0; (i != priv->rxqs_n); ++i) {
 		struct mlx5_rxq_data *rxq = (*priv->rxqs)[i];
-- 
2.11.0