[dpdk-dev] [PATCH 14/22] lib: fix non-C99 macros definitions in exported headers

[Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>]

From: Adrien Mazarguil <adrien.mazarguil-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>

The original definitions prevent external programs/libraries from compiling
without warnings when using these headers and -std=gnu99 (relaxed C99 mode).

Acked-by: Ivan Boule <ivan.boule-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Acked-by: Damien Millescamps <damien.millescamps-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
---
 lib/librte_cmdline/cmdline_cirbuf.h       |    5 +++--
 lib/librte_eal/common/include/rte_debug.h |    3 ++-
 lib/librte_eal/common/include/rte_log.h   |   15 +++++++--------
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/lib/librte_cmdline/cmdline_cirbuf.h b/lib/librte_cmdline/cmdline_cirbuf.h
index f934292..36b04ec 100644
--- a/lib/librte_cmdline/cmdline_cirbuf.h
+++ b/lib/librte_cmdline/cmdline_cirbuf.h
@@ -81,9 +81,10 @@ struct cirbuf {
 /* #define CIRBUF_DEBUG */
 
 #ifdef CIRBUF_DEBUG
-#define dprintf(fmt, ...) printf("line %3.3d - " fmt, __LINE__, ##__VA_ARGS__)
+#define dprintf_(fmt, ...) printf("line %3.3d - " fmt "%.0s", __LINE__, __VA_ARGS__)
+#define dprintf(...) dprintf_(__VA_ARGS__, "dummy")
 #else
-#define dprintf(args...) do {} while(0)
+#define dprintf(...) (void)0
 #endif
 
 
diff --git a/lib/librte_eal/common/include/rte_debug.h b/lib/librte_eal/common/include/rte_debug.h
index 451220e..1936dde 100644
--- a/lib/librte_eal/common/include/rte_debug.h
+++ b/lib/librte_eal/common/include/rte_debug.h
@@ -77,7 +77,8 @@ void rte_dump_registers(void);
  * @param args
  *   The variable list of arguments.
  */
-#define rte_panic(format, args...) __rte_panic(__func__, format, ## args)
+#define rte_panic_(func, format, ...) __rte_panic(func, format "%.0s", __VA_ARGS__)
+#define rte_panic(...) rte_panic_(__func__, __VA_ARGS__, "dummy")
 
 /*
  * Provide notification of a critical non-recoverable error and stop.
diff --git a/lib/librte_eal/common/include/rte_log.h b/lib/librte_eal/common/include/rte_log.h
index d361130..9a17730 100644
--- a/lib/librte_eal/common/include/rte_log.h
+++ b/lib/librte_eal/common/include/rte_log.h
@@ -274,14 +274,13 @@ int rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap);
  *   - 0: Success.
  *   - Negative on error.
  */
-#define RTE_LOG(l, t, fmt, args...) ({					\
-	if ((RTE_LOG_##l <= RTE_LOG_LEVEL) &&				\
-	    (RTE_LOG_##l <= rte_logs.level) &&				\
-	    (RTE_LOGTYPE_##t & rte_logs.type)) {			\
-		rte_log(RTE_LOG_##l, RTE_LOGTYPE_##t,			\
-			  #t ": " fmt, ## args);			\
-	}								\
-})
+#define RTE_LOG(l, t, ...)					\
+	(((RTE_LOG_ ## l <= RTE_LOG_LEVEL) &&			\
+	  (RTE_LOG_ ## l <= rte_logs.level) &&			\
+	  (RTE_LOGTYPE_ ## t & rte_logs.type)) ?		\
+	 rte_log(RTE_LOG_ ## l,					\
+		 RTE_LOGTYPE_ ## t, # t ": " __VA_ARGS__) :	\
+	 0)
 
 #ifdef __cplusplus
 }
-- 
1.7.2.5