[v2,1/3] examples/l2fwd-keepalive: don't use EAL logtype

Message ID 20240216033743.150800-2-stephen@networkplumber.org (mailing list archive)
State Superseded, archived
Delegated to: David Marchand
Headers
Series replace use of EAL logtype in applications |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Stephen Hemminger Feb. 16, 2024, 3:36 a.m. UTC
  EAL logtype should be reserved for EAL library.
This example is already using printf() so just print
errors to stderr.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Huisong Li <lihuisong@huawei.com>
---
 examples/l2fwd-keepalive/shm.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)
  

Comments

Morten Brørup Feb. 16, 2024, 8:04 a.m. UTC | #1
> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Friday, 16 February 2024 04.36
> 
> EAL logtype should be reserved for EAL library.
> This example is already using printf() so just print
> errors to stderr.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> Acked-by: Huisong Li <lihuisong@huawei.com>
> ---

Optionally, please consider using RTE_LOG(INFO, L2FWD, ...) instead. This would require #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 in the shm.c file too, or defining it in a common header for the two C files.

And while you are at it, shm.c also has a couple of printf for warnings; please consider converting those too. Either to RTE_LOG(INFO, L2FWD, ...) or to fprintf(stderr, ...).

Anyway...

Acked-by: Morten Brørup <mb@smartsharesystems.com>
  

Patch

diff --git a/examples/l2fwd-keepalive/shm.c b/examples/l2fwd-keepalive/shm.c
index 7c7a9ea8ea3c..cbeeb511ef07 100644
--- a/examples/l2fwd-keepalive/shm.c
+++ b/examples/l2fwd-keepalive/shm.c
@@ -5,7 +5,6 @@ 
 #include <time.h>
 
 #include <rte_common.h>
-#include <rte_log.h>
 #include <rte_keepalive.h>
 
 #include "shm.h"
@@ -28,28 +27,23 @@  struct rte_keepalive_shm *rte_keepalive_shm_create(void)
 	fd = shm_open(RTE_KEEPALIVE_SHM_NAME,
 		O_CREAT | O_TRUNC | O_RDWR, 0666);
 	if (fd < 0)
-		RTE_LOG(INFO, EAL,
-			"Failed to open %s as SHM (%s)\n",
-			RTE_KEEPALIVE_SHM_NAME,
-			strerror(errno));
+		fprintf(stderr, "Failed to open %s as SHM (%s)\n",
+			RTE_KEEPALIVE_SHM_NAME, strerror(errno));
 	else if (ftruncate(fd, sizeof(struct rte_keepalive_shm)) != 0)
-		RTE_LOG(INFO, EAL,
-			"Failed to resize SHM (%s)\n", strerror(errno));
+		fprintf(stderr, "Failed to resize SHM (%s)\n", strerror(errno));
 	else {
 		ka_shm = (struct rte_keepalive_shm *) mmap(
 			0, sizeof(struct rte_keepalive_shm),
 			PROT_READ | PROT_WRITE,	MAP_SHARED, fd, 0);
 		close(fd);
 		if (ka_shm == MAP_FAILED)
-			RTE_LOG(INFO, EAL,
-				"Failed to mmap SHM (%s)\n", strerror(errno));
+			fprintf(stderr, "Failed to mmap SHM (%s)\n", strerror(errno));
 		else {
 			memset(ka_shm, 0, sizeof(struct rte_keepalive_shm));
 
 			/* Initialize the semaphores for IPC/SHM use */
 			if (sem_init(&ka_shm->core_died, 1, 0) != 0) {
-				RTE_LOG(INFO, EAL,
-					"Failed to setup SHM semaphore (%s)\n",
+				fprintf(stderr, "Failed to setup SHM semaphore (%s)\n",
 					strerror(errno));
 				munmap(ka_shm,
 					sizeof(struct rte_keepalive_shm));
@@ -87,7 +81,7 @@  void rte_keepalive_relayed_state(struct rte_keepalive_shm *shm,
 		 * ka_agent is not active.
 		 */
 		if (sem_getvalue(&shm->core_died, &count) == -1) {
-			RTE_LOG(INFO, EAL, "Semaphore check failed(%s)\n",
+			fprintf(stderr, "Semaphore check failed(%s)\n",
 				strerror(errno));
 			return;
 		}
@@ -95,8 +89,7 @@  void rte_keepalive_relayed_state(struct rte_keepalive_shm *shm,
 			return;
 
 		if (sem_post(&shm->core_died) != 0)
-			RTE_LOG(INFO, EAL,
-				"Failed to increment semaphore (%s)\n",
+			fprintf(stderr, "Failed to increment semaphore (%s)\n",
 				strerror(errno));
 	}
 }