Fix build

---
 arch/arm/kernel/vmlinux.lds.S | 2 +-
 drivers/soc/qcom/ctx-save.c   | 4 ++--
 net/ipv6/ip6mr.c              | 2 +-
 init/do_mounts.c              | 2 ++
 4 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 406f2f1ed..5198ce351 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -73,7 +73,7 @@ SECTIONS
 	. = ALIGN(4);
 	__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
 		__start___ex_table = .;
-		ARM_MMU_KEEP(*(__ex_table))
+		KEEP(*(__ex_table))
 		__stop___ex_table = .;
 	}
 
diff --git a/drivers/soc/qcom/ctx-save.c b/drivers/soc/qcom/ctx-save.c
index 3c1248297..e1fa9a0b6 100644
--- a/drivers/soc/qcom/ctx-save.c
+++ b/drivers/soc/qcom/ctx-save.c
@@ -1508,8 +1508,8 @@ static int ctx_save_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_QCA_MINIDUMP
 	ret = register_module_notifier(&wlan_module_exit_nb);
-    if (ret)
-        dev_err(&pdev->dev, "Failed to register WLAN  module exit notifier\n");
+	if (ret)
+		dev_err(&pdev->dev, "Failed to register WLAN  module exit notifier\n");
 
 	ret = atomic_notifier_chain_register(&panic_notifier_list,
 				&wlan_panic_nb);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 45dcd1fd7..8d9328190 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -105,7 +105,7 @@ static ip6mr_mfc_event_offload_callback_t __rcu
 
 #ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
 #define ip6mr_for_each_table(mrt, net) \
-	list_for_each_entry_rcu(mrt, &net->ipv6.mr_tables, list)
+	list_for_each_entry_rcu(mrt, &net->ipv6.mr6_tables, list)
 
 static struct mr_table *ip6mr_mr_table_iter(struct net *net,
 					    struct mr_table *mrt)
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 1cb0a9571..1de990b03 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -461,6 +461,7 @@ void __init mount_block_root(char *name, int flags)
 	put_page(page);
 }
 
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
 static int __init mount_ubi_rootfs(void)
 {
 	int flags = MS_SILENT;
@@ -481,6 +482,7 @@ static int __init mount_ubi_rootfs(void)
 
 	return -EINVAL;
 }
+#endif
 
 #ifdef CONFIG_ROOT_NFS
 
-- 
2.43.0