[dpdk-dev] [PATCH v1 1/4] net/mlx: add debug checks to glue structure

[Adrien Mazarguil]

This code should catch mistakes early if a glue structure member is added
without a corresponding implementation in the library.

Signed-off-by: Adrien Mazarguil <adrien.mazarg...@6wind.com>
---
 drivers/net/mlx4/mlx4.c | 9 +++++++++
 drivers/net/mlx5/mlx5.c | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 50a55ee52..201d39b6e 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -799,6 +799,15 @@ rte_mlx4_pmd_init(void)
                return;
        assert(mlx4_glue);
 #endif
+#ifndef NDEBUG
+       /* Glue structure must not contain any NULL pointers. */
+       {
+               unsigned int i;
+
+               for (i = 0; i != sizeof(*mlx4_glue) / sizeof(void *); ++i)
+                       assert(((const void *const *)mlx4_glue)[i]);
+       }
+#endif
        mlx4_glue->fork_init();
        rte_pci_register(&mlx4_driver);
 }
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 544599b01..050cfac0d 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1142,6 +1142,15 @@ rte_mlx5_pmd_init(void)
                return;
        assert(mlx5_glue);
 #endif
+#ifndef NDEBUG
+       /* Glue structure must not contain any NULL pointers. */
+       {
+               unsigned int i;
+
+               for (i = 0; i != sizeof(*mlx5_glue) / sizeof(void *); ++i)
+                       assert(((const void *const *)mlx5_glue)[i]);
+       }
+#endif
        mlx5_glue->fork_init();
        rte_pci_register(&mlx5_driver);
 }
-- 
2.11.0