net: hns3: Fix for hns3 module is loaded multiple times problem

If the hns3 driver has been built into kernel and then loaded with
the same driver which built as KLM, it may trigger an error like
below:

[   20.009555] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
[   20.016789] hns3: Copyright (c) 2017 Huawei Corporation.
[   20.022100] Error: Driver 'hns3' is already registered, aborting...
[   23.517397] Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
[   23.691583] Process insmod (pid: 1982, stack limit = 0x00000000cd5f21cb)
[   23.698270] Call trace:
[   23.700705]  __list_del_entry_valid+0x2c/0xd8
[   23.705049]  hnae3_unregister_client+0x68/0xa8
[   23.709487]  hns3_init_module+0x98/0x1000 [hns3]
[   23.714093]  do_one_initcall+0x5c/0x170
[   23.717918]  do_init_module+0x64/0x1f4
[   23.721654]  load_module+0x1d14/0x24b0
[   23.725390]  SyS_init_module+0x158/0x208
[   23.729300]  el0_svc_naked+0x30/0x34

This patch fixes it by adding module version info.

Fixes: 38caee9d3ee8 ("net: hns3: Add support of the HNAE3 framework")
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
index bd3c232..63d7dbf 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
@@ -285,3 +285,4 @@ EXPORT_SYMBOL(hnae3_unregister_ae_dev);
 MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("HNAE3(Hisilicon Network Acceleration Engine) Framework");
+MODULE_VERSION(HNAE3_MOD_VERSION);

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 2f266ef..45c571e 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -36,6 +36,8 @@
 #include <linux/pci.h>
 #include <linux/types.h>
 
+#define HNAE3_MOD_VERSION "1.0"
+
 /* Device IDs */
 #define HNAE3_DEV_ID_GE                                0xA220
 #define HNAE3_DEV_ID_25GE                      0xA221

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 701ae5e..cac5195 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3538,3 +3538,4 @@ MODULE_DESCRIPTION("HNS3: Hisilicon Ethernet Driver");
 MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("pci:hns-nic");
+MODULE_VERSION(HNS3_MOD_VERSION);

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 98cdbd3..5b40f5a 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -14,6 +14,8 @@
 
 #include "hnae3.h"
 
+#define HNS3_MOD_VERSION "1.0"
+
 extern const char hns3_driver_version[];
 
 enum hns3_nic_state {

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index af736a4..93177d9 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -17,7 +17,7 @@
 #include "hclge_cmd.h"
 #include "hnae3.h"
 
-#define HCLGE_MOD_VERSION "v1.0"
+#define HCLGE_MOD_VERSION "1.0"
 #define HCLGE_DRIVER_NAME "hclge"
 
 #define HCLGE_INVALID_VPORT 0xffff

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index a477a7c..9763e74 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -9,7 +9,7 @@
 #include "hclgevf_cmd.h"
 #include "hnae3.h"
 
-#define HCLGEVF_MOD_VERSION "v1.0"
+#define HCLGEVF_MOD_VERSION "1.0"
 #define HCLGEVF_DRIVER_NAME "hclgevf"
 
 #define HCLGEVF_ROCEE_VECTOR_NUM       0