From 9003543f4571c936fddc36be42640cc0dcf9b75f Mon Sep 17 00:00:00 2001
From: Gleb Chesnokov <gleb.chesnokov@scst.dev>
Date: Sun, 12 Apr 2026 13:17:55 +0300
Subject: [PATCH] scst: Port to Linux kernel v7.0

Support for the following changes in the Linux kernel v7.0:

  - e3b2cf6e5dba ("kernfs: pass struct ns_common instead of
    const void * for namespace tags")
---
 iscsi-scst/kernel/event.c | 12 ++++++++++++
 srpt/src/ib_srpt.c        | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/iscsi-scst/kernel/event.c b/iscsi-scst/kernel/event.c
index 58e0581cf..1ac927ab7 100644
--- a/iscsi-scst/kernel/event.c
+++ b/iscsi-scst/kernel/event.c
@@ -171,7 +171,11 @@ out_unlock:
 
 int __init event_init(void)
 {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	iscsi_net_ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
+#else
+	iscsi_net_ns = to_net_ns(kobj_ns_grab_current(KOBJ_NS_TYPE_NET));
+#endif
 
 	{
 		struct netlink_kernel_cfg cfg = {
@@ -188,7 +192,11 @@ int __init event_init(void)
 
 drop_ns:
 	PRINT_ERROR("%s", "netlink_kernel_create() failed");
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	kobj_ns_drop(KOBJ_NS_TYPE_NET, iscsi_net_ns);
+#else
+	kobj_ns_drop(KOBJ_NS_TYPE_NET, to_ns_common(iscsi_net_ns));
+#endif
 	iscsi_net_ns = NULL;
 	return -ENOMEM;
 }
@@ -196,6 +204,10 @@ drop_ns:
 void event_exit(void)
 {
 	netlink_kernel_release(nl);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	kobj_ns_drop(KOBJ_NS_TYPE_NET, iscsi_net_ns);
+#else
+	kobj_ns_drop(KOBJ_NS_TYPE_NET, to_ns_common(iscsi_net_ns));
+#endif
 	iscsi_net_ns = NULL;
 }
diff --git a/srpt/src/ib_srpt.c b/srpt/src/ib_srpt.c
index 9bb3ffcad..53651b2fd 100644
--- a/srpt/src/ib_srpt.c
+++ b/srpt/src/ib_srpt.c
@@ -4579,7 +4579,11 @@ static int __init srpt_init_module(void)
 		goto destroy_wq;
 	}
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	srpt_net_ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
+#else
+	srpt_net_ns = to_net_ns(kobj_ns_grab_current(KOBJ_NS_TYPE_NET));
+#endif
 
 	if (rdma_cm_port) {
 		struct sockaddr_in addr;
@@ -4623,7 +4627,11 @@ destroy_id:
 		rdma_destroy_id(rdma_cm_id);
 
 drop_ns:
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	kobj_ns_drop(KOBJ_NS_TYPE_NET, srpt_net_ns);
+#else
+	kobj_ns_drop(KOBJ_NS_TYPE_NET, to_ns_common(srpt_net_ns));
+#endif
 	srpt_net_ns = NULL;
 	ib_unregister_client(&srpt_client);
 
@@ -4642,7 +4650,11 @@ static void __exit srpt_cleanup_module(void)
 	if (rdma_cm_id)
 		rdma_destroy_id(rdma_cm_id);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(7, 0, 0)
 	kobj_ns_drop(KOBJ_NS_TYPE_NET, srpt_net_ns);
+#else
+	kobj_ns_drop(KOBJ_NS_TYPE_NET, to_ns_common(srpt_net_ns));
+#endif
 	srpt_net_ns = NULL;
 
 	ib_unregister_client(&srpt_client);