net/mlx4: enable debug logs dynamically

The macro DEBUG was doing nothing if not compiled with
RTE_LIBRTE_MLX4_DEBUG.

As it is not used in the data path, it can be always enabled at
compilation time. Then it can be enabled at runtime with:
	--log-level pmd.net.mlx4:debug

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Matan Azrad <matan@nvidia.com>

diff --git a/drivers/net/mlx4/mlx4_utils.h b/drivers/net/mlx4/mlx4_utils.h
index b876956..fca21fd 100644 (file)
--- a/drivers/net/mlx4/mlx4_utils.h
+++ b/drivers/net/mlx4/mlx4_utils.h
@@ -52,14 +52,13 @@ pmd_drv_log_basename(const char *s)
                        __LINE__, \
                        __func__, \
                        RTE_FMT_TAIL(__VA_ARGS__,)))
-#define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__)
 #define MLX4_ASSERT(exp) RTE_VERIFY(exp)
 #define claim_zero(...) MLX4_ASSERT((__VA_ARGS__) == 0)
 
 #else /* RTE_LIBRTE_MLX4_DEBUG */
 
 /*
- * Like MLX4_ASSERT(), DEBUG() becomes a no-op and claim_zero() does not perform
+ * Like MLX4_ASSERT(), claim_zero() does not perform
  * any check when debugging is disabled.
  */
 
@@ -68,12 +67,12 @@ pmd_drv_log_basename(const char *s)
                RTE_FMT(MLX4_DRIVER_NAME ": " \
                        RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
                RTE_FMT_TAIL(__VA_ARGS__,)))
-#define DEBUG(...) (void)0
 #define MLX4_ASSERT(exp) RTE_ASSERT(exp)
 #define claim_zero(...) (__VA_ARGS__)
 
 #endif /* RTE_LIBRTE_MLX4_DEBUG */
 
+#define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__)
 #define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__)
 #define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__)
 #define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__)