[PATCH 12/12] IB/core: Implement the Infiniband flush callback

[Dan Jurgens]

From: Daniel Jurgens <dani...@mellanox.com>

Register the callback at init and unregister it at cleanup.

When called walk the device list and call ib_security_cache_change for
each port on each device.

Signed-off-by: Daniel Jurgens <dani...@mellanox.com>
Reviewed-by: Eli Cohen <e...@mellanox.com>
Reviewed-by: Leon Romanovsky <leo...@mellanox.com>
---
 drivers/infiniband/core/device.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 63deb5c..5060a7f 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -335,6 +335,29 @@ static int setup_port_pkey_list(struct ib_device *device)
        return 0;
 }
 
+static void ib_security_flush(void)
+{
+       struct ib_device *dev;
+
+       down_read(&lists_rwsem);
+       list_for_each_entry(dev, &device_list, core_list) {
+               int i;
+
+               for (i = rdma_start_port(dev); i <= rdma_end_port(dev); i++) {
+                       u64 sp;
+                       int ret = ib_get_cached_subnet_prefix(dev,
+                                                             i,
+                                                             &sp);
+
+                       WARN_ONCE(ret,
+                                 "ib_get_cached_subnet_prefix err: %d, this 
should never happen here\n",
+                                 ret);
+                       ib_security_cache_change(dev, i, sp);
+               }
+       }
+       up_read(&lists_rwsem);
+}
+
 /**
  * ib_register_device - Register an IB device with IB core
  * @device:Device to register
@@ -1062,6 +1085,8 @@ static int __init ib_core_init(void)
                goto err_sa;
        }
 
+       security_register_ib_flush_callback(&ib_security_flush);
+
        ib_cache_setup();
 
        return 0;
@@ -1085,6 +1110,7 @@ err:
 
 static void __exit ib_core_cleanup(void)
 {
+       security_unregister_ib_flush_callback();
        ib_cache_cleanup();
        ib_remove_ibnl_clients();
        ib_sa_cleanup();
-- 
1.8.3.1

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