From: Jean Dao <jean.dao@6wind.com>
Date: Mon, 6 Apr 2015 19:14:20 +0000 (+0200)
Subject: log: fix log level check
X-Git-Tag: spdx-start~9255
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=23e4bf20a16d34b2759e8082a818bb3597dc6392;p=dpdk.git

log: fix log level check

According to the api, rte_log() / rte_vlog() are supposed to check the log level
and type but they were not doing so. This check was only done in the RTE_LOG
macro while this macro is only there to remove log messages at build time.

rte_log() always calls rte_vlog(), so do the check in rte_vlog() only.

Signed-off-by: Jean Dao <jean.dao@6wind.com>
Signed-off-by: David Marchand <david.marchand@6wind.com>
---

diff --git a/lib/librte_eal/common/eal_common_log.c b/lib/librte_eal/common/eal_common_log.c
index ff44d23cb1..fe3d7d53ed 100644
--- a/lib/librte_eal/common/eal_common_log.c
+++ b/lib/librte_eal/common/eal_common_log.c
@@ -265,14 +265,15 @@ rte_log_dump_history(FILE *out)
  * defined by the previous call to rte_openlog_stream().
  */
 int
-rte_vlog(__attribute__((unused)) uint32_t level,
-	 __attribute__((unused)) uint32_t logtype,
-	   const char *format, va_list ap)
+rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
 {
 	int ret;
 	FILE *f = rte_logs.file;
 	unsigned lcore_id;
 
+	if ((level > rte_logs.level) || !(logtype & rte_logs.type))
+		return 0;
+
 	/* save loglevel and logtype in a global per-lcore variable */
 	lcore_id = rte_lcore_id();
 	if (lcore_id < RTE_MAX_LCORE) {
@@ -288,6 +289,7 @@ rte_vlog(__attribute__((unused)) uint32_t level,
 /*
  * Generates a log message The message will be sent in the stream
  * defined by the previous call to rte_openlog_stream().
+ * No need to check level here, done by rte_vlog().
  */
 int
 rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
diff --git a/lib/librte_eal/common/include/rte_log.h b/lib/librte_eal/common/include/rte_log.h
index f83a0d9543..3b467c1f49 100644
--- a/lib/librte_eal/common/include/rte_log.h
+++ b/lib/librte_eal/common/include/rte_log.h
@@ -299,9 +299,7 @@ int rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
  *   - Negative on error.
  */
 #define RTE_LOG(l, t, ...)					\
-	(void)(((RTE_LOG_ ## l <= RTE_LOG_LEVEL) &&			\
-	  (RTE_LOG_ ## l <= rte_logs.level) &&			\
-	  (RTE_LOGTYPE_ ## t & rte_logs.type)) ?		\
+	(void)((RTE_LOG_ ## l <= RTE_LOG_LEVEL) ?		\
 	 rte_log(RTE_LOG_ ## l,					\
 		 RTE_LOGTYPE_ ## t, # t ": " __VA_ARGS__) :	\
 	 0)