From d7385ba137711ea71527a605cac162610a621de8 Mon Sep 17 00:00:00 2001
From: Jason Andryuk <jandryuk@gmail.com>
Date: Thu, 4 May 2023 15:47:23 -0400
Subject: [PATCH] 9p: Remove INET dependency

9pfs can run over assorted transports, so it doesn't have an INET
dependency.  Drop it and remove the includes of linux/inet.h.

NET_9P_FD/trans_fd.o builds without INET or UNIX and is usable over
plain file descriptors.  However, tcp and unix functionality is still
built and would generate runtime failures if used.  Add imply INET and
UNIX to NET_9P_FD, so functionality is enabled by default but can still
be explicitly disabled.

This allows configuring 9pfs over Xen with INET and UNIX disabled.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 fs/9p/Kconfig          | 2 +-
 fs/9p/vfs_addr.c       | 1 -
 fs/9p/vfs_dentry.c     | 1 -
 fs/9p/vfs_dir.c        | 1 -
 fs/9p/vfs_file.c       | 1 -
 fs/9p/vfs_inode.c      | 1 -
 fs/9p/vfs_inode_dotl.c | 1 -
 fs/9p/vfs_super.c      | 1 -
 net/9p/Kconfig         | 2 ++
 9 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/fs/9p/Kconfig b/fs/9p/Kconfig
index d7bc934..0c63df5 100644
--- a/fs/9p/Kconfig
+++ b/fs/9p/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config 9P_FS
 	tristate "Plan 9 Resource Sharing Support (9P2000)"
-	depends on INET && NET_9P
+	depends on NET_9P
 	select NETFS_SUPPORT
 	help
 	  If you say Y here, you will get experimental support for
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 6f46d7e..425956e 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -12,7 +12,6 @@
 #include <linux/file.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/pagemap.h>
 #include <linux/sched.h>
 #include <linux/swap.h>
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index 65fa2df..f16f735 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -13,7 +13,6 @@
 #include <linux/pagemap.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/namei.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 3d74b04..52bf879 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -13,7 +13,6 @@
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/sched.h>
-#include <linux/inet.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
 #include <linux/fscache.h>
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 44c15eb..367a851 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -14,7 +14,6 @@
 #include <linux/file.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/list.h>
 #include <linux/pagemap.h>
 #include <linux/utsname.h>
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 1d523be..502ac74 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -15,7 +15,6 @@
 #include <linux/pagemap.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/namei.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 331ed60..a7da499 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -13,7 +13,6 @@
 #include <linux/pagemap.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/namei.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 266c469..1044999 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -12,7 +12,6 @@
 #include <linux/file.h>
 #include <linux/stat.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/pagemap.h>
 #include <linux/mount.h>
 #include <linux/sched.h>
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index deabbd37..00ebce9 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -17,6 +17,8 @@ if NET_9P
 
 config NET_9P_FD
 	default NET_9P
+	imply INET
+	imply UNIX
 	tristate "9P FD Transport"
 	help
 	  This builds support for transports over TCP, Unix sockets and
-- 
2.7.4