[dpdk-dev] [PATCH v3 1/5] eal: use sizeof to avoid a double use of a define

[Olivier Matz <olivier.matz@6wind.com>]

Only a cosmetic change: the *_LEN defines are already used
when defining the buffer. Using sizeof() ensures that the length
stays consistent, even if the definition is modified.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 examples/tep_termination/main.c              | 2 +-
 examples/vhost/main.c                        | 2 +-
 lib/librte_eal/bsdapp/eal/eal.c              | 4 ++--
 lib/librte_eal/bsdapp/eal/eal_thread.c       | 2 +-
 lib/librte_eal/common/eal_common_proc.c      | 4 ++--
 lib/librte_eal/linuxapp/eal/eal.c            | 4 ++--
 lib/librte_eal/linuxapp/eal/eal_interrupts.c | 2 +-
 lib/librte_eal/linuxapp/eal/eal_thread.c     | 2 +-
 lib/librte_eal/linuxapp/eal/eal_timer.c      | 2 +-
 lib/librte_vhost/socket.c                    | 4 ++--
 10 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index 8543a9803..52b95025c 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -1208,7 +1208,7 @@ main(int argc, char *argv[])
 		ret = pthread_create(&tid, NULL, (void *)print_stats, NULL);
 		if (ret != 0)
 			rte_exit(EXIT_FAILURE, "Cannot create print-stats thread\n");
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN, "print-stats");
+		snprintf(thread_name, sizeof(thread_name), "print-stats");
 		ret = rte_thread_setname(tid, thread_name);
 		if (ret != 0)
 			RTE_LOG(DEBUG, VHOST_CONFIG, "Cannot set print-stats name\n");
diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 84e0d6366..e33a0f3c9 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -1499,7 +1499,7 @@ main(int argc, char *argv[])
 				"Cannot create print-stats thread\n");
 
 		/* Set thread_name for aid in debugging.  */
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN, "print-stats");
+		snprintf(thread_name, sizeof(thread_name), "print-stats");
 		ret = rte_thread_setname(tid, thread_name);
 		if (ret != 0)
 			RTE_LOG(DEBUG, VHOST_CONFIG,
diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index d315cdef8..10d8dc03f 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -657,7 +657,7 @@ rte_eal_init(int argc, char **argv)
 
 	eal_thread_init_master(rte_config.master_lcore);
 
-	ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+	ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 
 	RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
 		rte_config.master_lcore, thread_id, cpuset,
@@ -683,7 +683,7 @@ rte_eal_init(int argc, char **argv)
 			rte_panic("Cannot create thread\n");
 
 		/* Set thread_name for aid in debugging. */
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+		snprintf(thread_name, sizeof(thread_name),
 				"lcore-slave-%d", i);
 		rte_thread_setname(lcore_config[i].thread_id, thread_name);
 	}
diff --git a/lib/librte_eal/bsdapp/eal/eal_thread.c b/lib/librte_eal/bsdapp/eal/eal_thread.c
index d602daf81..309b58726 100644
--- a/lib/librte_eal/bsdapp/eal/eal_thread.c
+++ b/lib/librte_eal/bsdapp/eal/eal_thread.c
@@ -119,7 +119,7 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 	if (eal_thread_set_affinity() < 0)
 		rte_panic("cannot set affinity\n");
 
-	ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+	ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 
 	RTE_LOG(DEBUG, EAL, "lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
 		lcore_id, thread_id, cpuset, ret == 0 ? "" : "...");
diff --git a/lib/librte_eal/common/eal_common_proc.c b/lib/librte_eal/common/eal_common_proc.c
index 9136fb0a3..c450c848f 100644
--- a/lib/librte_eal/common/eal_common_proc.c
+++ b/lib/librte_eal/common/eal_common_proc.c
@@ -682,11 +682,11 @@ rte_mp_channel_init(void)
 	}
 
 	/* try best to set thread name */
-	strlcpy(thread_name, "rte_mp_handle", RTE_MAX_THREAD_NAME_LEN);
+	strlcpy(thread_name, "rte_mp_handle", sizeof(thread_name));
 	rte_thread_setname(mp_handle_tid, thread_name);
 
 	/* try best to set thread name */
-	strlcpy(thread_name, "rte_mp_async_handle", RTE_MAX_THREAD_NAME_LEN);
+	strlcpy(thread_name, "rte_mp_async_handle", sizeof(thread_name));
 	rte_thread_setname(async_reply_handle_tid, thread_name);
 
 	/* unlock the directory */
diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 5b23bf0e0..200e879d2 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -895,7 +895,7 @@ rte_eal_init(int argc, char **argv)
 
 	eal_thread_init_master(rte_config.master_lcore);
 
-	ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+	ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 
 	RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%x;cpuset=[%s%s])\n",
 		rte_config.master_lcore, (int)thread_id, cpuset,
@@ -926,7 +926,7 @@ rte_eal_init(int argc, char **argv)
 			rte_panic("Cannot create thread\n");
 
 		/* Set thread_name for aid in debugging. */
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+		snprintf(thread_name, sizeof(thread_name),
 			"lcore-slave-%d", i);
 		ret = rte_thread_setname(lcore_config[i].thread_id,
 						thread_name);
diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 58e93281a..b5bcfc59a 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -877,7 +877,7 @@ rte_eal_intr_init(void)
 			"Failed to create thread for interrupt handling\n");
 	} else {
 		/* Set thread_name for aid in debugging. */
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+		snprintf(thread_name, sizeof(thread_name),
 			"eal-intr-thread");
 		ret_1 = rte_thread_setname(intr_thread, thread_name);
 		if (ret_1 != 0)
diff --git a/lib/librte_eal/linuxapp/eal/eal_thread.c b/lib/librte_eal/linuxapp/eal/eal_thread.c
index 08e150b77..f652ff988 100644
--- a/lib/librte_eal/linuxapp/eal/eal_thread.c
+++ b/lib/librte_eal/linuxapp/eal/eal_thread.c
@@ -119,7 +119,7 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 	if (eal_thread_set_affinity() < 0)
 		rte_panic("cannot set affinity\n");
 
-	ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+	ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 
 	RTE_LOG(DEBUG, EAL, "lcore %u is ready (tid=%x;cpuset=[%s%s])\n",
 		lcore_id, (int)thread_id, cpuset, ret == 0 ? "" : "...");
diff --git a/lib/librte_eal/linuxapp/eal/eal_timer.c b/lib/librte_eal/linuxapp/eal/eal_timer.c
index 161322f23..098e22a65 100644
--- a/lib/librte_eal/linuxapp/eal/eal_timer.c
+++ b/lib/librte_eal/linuxapp/eal/eal_timer.c
@@ -189,7 +189,7 @@ rte_eal_hpet_init(int make_default)
 	/*
 	 * Set thread_name for aid in debugging.
 	 */
-	snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN, "hpet-msb-inc");
+	snprintf(thread_name, sizeof(thread_name), "hpet-msb-inc");
 	ret = rte_thread_setname(msb_inc_thread_id, thread_name);
 	if (ret != 0)
 		RTE_LOG(DEBUG, EAL,
diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 636fc25c6..6eec427e4 100644
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -485,7 +485,7 @@ vhost_user_reconnect_init(void)
 				"failed to destroy reconnect mutex");
 		}
 	} else {
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+		snprintf(thread_name, sizeof(thread_name),
 			 "vhost-reconn");
 
 		if (rte_thread_setname(reconn_tid, thread_name)) {
@@ -1029,7 +1029,7 @@ rte_vhost_driver_start(const char *path)
 			fdset_pipe_uninit(&vhost_user.fdset);
 			return -1;
 		} else {
-			snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+			snprintf(thread_name, sizeof(thread_name),
 				 "vhost-events");
 
 			if (rte_thread_setname(fdset_tid, thread_name)) {
-- 
2.11.0