[dpdk-dev] [PATCH v3 2/3] examples: use RTE_DIM to calculate array size

[<pbhagavatula@marvell.com>]

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

use RTE_DIM macro to calculate array size.

Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 examples/ip_pipeline/parser.c  |  2 +-
 examples/ipv4_multicast/main.c |  6 +-----
 examples/l3fwd-power/main.c    | 18 ++++--------------
 examples/l3fwd/l3fwd_em.c      |  6 ++----
 examples/l3fwd/l3fwd_lpm.c     |  9 ++-------
 examples/vmdq/main.c           |  2 +-
 examples/vmdq_dcb/main.c       |  2 +-
 7 files changed, 12 insertions(+), 33 deletions(-)

diff --git a/examples/ip_pipeline/parser.c b/examples/ip_pipeline/parser.c
index 3fffeb586..fb0769fe3 100644
--- a/examples/ip_pipeline/parser.c
+++ b/examples/ip_pipeline/parser.c
@@ -528,7 +528,7 @@ my_ether_aton(const char *a)
 		if (errno != 0 || end == a || (end[0] != ':' && end[0] != 0))
 			return NULL;
 		a = end + 1;
-	} while (++i != sizeof(o) / sizeof(o[0]) && end[0] != 0);
+	} while (++i != RTE_DIM(o) && end[0] != 0);
 
 	/* Junk at the end of line */
 	if (end[0] != 0)
diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
index 63333b5b6..1fb28513b 100644
--- a/examples/ipv4_multicast/main.c
+++ b/examples/ipv4_multicast/main.c
@@ -155,10 +155,6 @@ static struct mcast_group_params mcast_group_table[] = {
 		{RTE_IPV4(224,0,0,115), 0xF},
 };
 
-#define N_MCAST_GROUPS \
-	(sizeof (mcast_group_table) / sizeof (mcast_group_table[0]))
-
-
 /* Send burst of packets on an output interface */
 static void
 send_burst(struct lcore_queue_conf *qconf, uint16_t port)
@@ -555,7 +551,7 @@ init_mcast_hash(void)
 		return -1;
 	}
 
-	for (i = 0; i < N_MCAST_GROUPS; i ++){
+	for (i = 0; i < RTE_DIM(mcast_group_table); i++) {
 		if (rte_fbk_hash_add_key(mcast_hash,
 			mcast_group_table[i].ip,
 			mcast_group_table[i].port_mask) < 0) {
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index d049d8a5d..e90d18b24 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -238,8 +238,7 @@ static struct lcore_params lcore_params_array_default[] = {
 };
 
 struct lcore_params *lcore_params = lcore_params_array_default;
-uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
-				sizeof(lcore_params_array_default[0]);
+uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
 
 static struct rte_eth_conf port_conf = {
 	.rxmode = {
@@ -326,12 +325,6 @@ static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 
 #define L3FWD_HASH_ENTRIES	1024
 
-#define IPV4_L3FWD_NUM_ROUTES \
-	(sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-
-#define IPV6_L3FWD_NUM_ROUTES \
-	(sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
-
 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 #endif
@@ -354,9 +347,6 @@ static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 	{RTE_IPV4(8,1,1,0), 24, 7},
 };
 
-#define IPV4_L3FWD_NUM_ROUTES \
-	(sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-
 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 
 typedef struct rte_lpm lookup_struct_t;
@@ -1841,7 +1831,7 @@ setup_hash(int socketid)
 
 
 	/* populate the ipv4 hash */
-	for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+	for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
 		ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
 				(void *) &ipv4_l3fwd_route_array[i].key);
 		if (ret < 0) {
@@ -1854,7 +1844,7 @@ setup_hash(int socketid)
 	}
 
 	/* populate the ipv6 hash */
-	for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
+	for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
 		ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
 				(void *) &ipv6_l3fwd_route_array[i].key);
 		if (ret < 0) {
@@ -1891,7 +1881,7 @@ setup_lpm(int socketid)
 				" on socket %d\n", socketid);
 
 	/* populate the LPM table */
-	for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+	for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
 		ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
 			ipv4_l3fwd_route_array[i].ip,
 			ipv4_l3fwd_route_array[i].depth,
diff --git a/examples/l3fwd/l3fwd_em.c b/examples/l3fwd/l3fwd_em.c
index 74a7c8fa4..1b1cce47d 100644
--- a/examples/l3fwd/l3fwd_em.c
+++ b/examples/l3fwd/l3fwd_em.c
@@ -203,11 +203,9 @@ ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
 	return init_val;
 }
 
-#define IPV4_L3FWD_EM_NUM_ROUTES \
-	(sizeof(ipv4_l3fwd_em_route_array) / sizeof(ipv4_l3fwd_em_route_array[0]))
+#define IPV4_L3FWD_EM_NUM_ROUTES RTE_DIM(ipv4_l3fwd_em_route_array)
 
-#define IPV6_L3FWD_EM_NUM_ROUTES \
-	(sizeof(ipv6_l3fwd_em_route_array) / sizeof(ipv6_l3fwd_em_route_array[0]))
+#define IPV6_L3FWD_EM_NUM_ROUTES RTE_DIM(ipv6_l3fwd_em_route_array)
 
 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
diff --git a/examples/l3fwd/l3fwd_lpm.c b/examples/l3fwd/l3fwd_lpm.c
index 349de2703..1b3950d91 100644
--- a/examples/l3fwd/l3fwd_lpm.c
+++ b/examples/l3fwd/l3fwd_lpm.c
@@ -65,11 +65,6 @@ static struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
 	{{32, 1, 2, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0}, 48, 7},
 };
 
-#define IPV4_L3FWD_LPM_NUM_ROUTES \
-	(sizeof(ipv4_l3fwd_lpm_route_array) / sizeof(ipv4_l3fwd_lpm_route_array[0]))
-#define IPV6_L3FWD_LPM_NUM_ROUTES \
-	(sizeof(ipv6_l3fwd_lpm_route_array) / sizeof(ipv6_l3fwd_lpm_route_array[0]))
-
 #define IPV4_L3FWD_LPM_MAX_RULES         1024
 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
 #define IPV6_L3FWD_LPM_MAX_RULES         1024
@@ -277,7 +272,7 @@ setup_lpm(const int socketid)
 			socketid);
 
 	/* populate the LPM table */
-	for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
+	for (i = 0; i < RTE_DIM(ipv4_l3fwd_lpm_route_array); i++) {
 		struct in_addr in;
 
 		/* skip unused ports */
@@ -317,7 +312,7 @@ setup_lpm(const int socketid)
 			socketid);
 
 	/* populate the LPM table */
-	for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
+	for (i = 0; i < RTE_DIM(ipv6_l3fwd_lpm_route_array); i++) {
 
 		/* skip unused ports */
 		if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
diff --git a/examples/vmdq/main.c b/examples/vmdq/main.c
index 6e6fc91ec..011110920 100644
--- a/examples/vmdq/main.c
+++ b/examples/vmdq/main.c
@@ -503,7 +503,7 @@ lcore_main(__attribute__((__unused__)) void *dummy)
 
 	for (;;) {
 		struct rte_mbuf *buf[MAX_PKT_BURST];
-		const uint16_t buf_size = sizeof(buf) / sizeof(buf[0]);
+		const uint16_t buf_size = RTE_DIM(buf);
 
 		for (p = 0; p < num_ports; p++) {
 			const uint8_t sport = ports[p];
diff --git a/examples/vmdq_dcb/main.c b/examples/vmdq_dcb/main.c
index 594c4f195..f417b2fd9 100644
--- a/examples/vmdq_dcb/main.c
+++ b/examples/vmdq_dcb/main.c
@@ -582,7 +582,7 @@ lcore_main(void *arg)
 
 	for (;;) {
 		struct rte_mbuf *buf[MAX_PKT_BURST];
-		const uint16_t buf_size = sizeof(buf) / sizeof(buf[0]);
+		const uint16_t buf_size = RTE_DIM(buf);
 		for (p = 0; p < num_ports; p++) {
 			const uint8_t src = ports[p];
 			const uint8_t dst = ports[p ^ 1]; /* 0 <-> 1, 2 <-> 3 etc */
-- 
2.17.1