Once infiniband was compiled as core component it's subsystem must be
enabled before device initialization. Otherwise this result NULL pointer
dereference during mlx4_core init, calltrace:
->device_add
if (dev->class) {
deref dev->class->p =>NULLPTR
#Config
CONFIG_NET_DEVLINK=y
CONFIG_MAY_USE_DEVLINK=y
CONFIG_MLX4_EN=y
Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
drivers/infiniband/core/device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 84fc32a..5e1be49 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1253,5 +1253,5 @@ static void __exit ib_core_cleanup(void)
MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_LS, 4);
-module_init(ib_core_init);
+subsys_initcall(ib_core_init);
module_exit(ib_core_cleanup);
--
1.8.3.1
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