smb: move client and server files to common directory fs/smb

JIRA: https://issues.redhat.com/browse/RHEL-11577
Conflicts: RHEL 9 doesn't have ksmbd, so all ksmbd-related changes have
	been dropped.  Also includes a RHEL-specific change to update
	filter-modules.sh.

commit 38c8a9a52082579090e34c033d439ed2cd1a462d
Author: Steve French <stfrench@microsoft.com>
Date:   Sun May 21 20:46:30 2023 -0500

    smb: move client and server files to common directory fs/smb

    Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
    and helper modules) to new fs/smb subdirectory:

       fs/cifs --> fs/smb/client
       fs/ksmbd --> fs/smb/server
       fs/smbfs_common --> fs/smb/common

    Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
    Acked-by: Namjae Jeon <linkinjeon@kernel.org>
    Signed-off-by: Steve French <stfrench@microsoft.com>

Signed-off-by: Scott Mayhew <smayhew@redhat.com>

MAINTAINERS

@@ -4743,7 +4743,9 @@ S:	Supported
 W:	http://linux-cifs.samba.org/
 T:	git git://git.samba.org/sfrench/cifs-2.6.git
 F:	Documentation/admin-guide/cifs/
-F:	fs/cifs/
+F:	fs/smb/client
+F:	fs/smb/common
+F:	include/uapi/linux/cifs
 
 COMPACTPCI HOTPLUG CORE
 M:	Scott Murray <scott@spiteful.org>

fs/Kconfig

@@ -363,12 +363,7 @@ config NFS_V4_2_SSC_HELPER
 source "net/sunrpc/Kconfig"
 source "fs/ceph/Kconfig"
 
-source "fs/cifs/Kconfig"
-
-config SMBFS_COMMON
-	tristate
-	default y if CIFS=y
-	default m if CIFS=m
+source "fs/smb/Kconfig"
 
 source "fs/coda/Kconfig"
 source "fs/afs/Kconfig"

fs/Makefile

@@ -90,8 +90,7 @@ obj-$(CONFIG_LOCKD)		+= lockd/
 obj-$(CONFIG_NLS)		+= nls/
 obj-$(CONFIG_UNICODE)		+= unicode/
 obj-$(CONFIG_SYSV_FS)		+= sysv/
-obj-$(CONFIG_SMBFS_COMMON)	+= smbfs_common/
-obj-$(CONFIG_CIFS)		+= cifs/
+obj-$(CONFIG_SMBFS)		+= smb/
 obj-$(CONFIG_HPFS_FS)		+= hpfs/
 obj-$(CONFIG_NTFS_FS)		+= ntfs/
 obj-$(CONFIG_UFS_FS)		+= ufs/

fs/smb/Kconfig

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# smbfs configuration
+
+source "fs/smb/client/Kconfig"
+
+config SMBFS
+	tristate
+	default y if CIFS=y
+	default m if CIFS=m

fs/smb/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_SMBFS)		+= common/
+obj-$(CONFIG_CIFS)		+= client/

fs/smb/client/cifsencrypt.c

@@ -21,7 +21,7 @@
 #include <linux/random.h>
 #include <linux/highmem.h>
 #include <linux/fips.h>
-#include "../smbfs_common/arc4.h"
+#include "../common/arc4.h"
 #include <crypto/aead.h>
 
 int __cifs_calc_signature(struct smb_rqst *rqst,

fs/smb/client/cifsglob.h

@@ -24,7 +24,7 @@
 #include "cifsacl.h"
 #include <crypto/internal/hash.h>
 #include <uapi/linux/cifs/cifs_mount.h>
-#include "../smbfs_common/smb2pdu.h"
+#include "../common/smb2pdu.h"
 #include "smb2pdu.h"
 
 #define SMB_PATH_MAX 260

fs/smb/client/cifspdu.h

@@ -11,7 +11,7 @@
 
 #include <net/sock.h>
 #include <asm/unaligned.h>
-#include "../smbfs_common/smbfsctl.h"
+#include "../common/smbfsctl.h"
 
 #define CIFS_PROT   0
 #define POSIX_PROT  (CIFS_PROT+1)

fs/smb/client/smbencrypt.c

@@ -24,7 +24,7 @@
 #include "cifsglob.h"
 #include "cifs_debug.h"
 #include "cifsproto.h"
-#include "../smbfs_common/md4.h"
+#include "../common/md4.h"
 
 #ifndef false
 #define false 0

fs/smb/common/Makefile

@@ -3,5 +3,5 @@
 # Makefile for Linux filesystem routines that are shared by client and server.
 #
 
-obj-$(CONFIG_SMBFS_COMMON) += cifs_arc4.o
-obj-$(CONFIG_SMBFS_COMMON) += cifs_md4.o
+obj-$(CONFIG_SMBFS) += cifs_arc4.o
+obj-$(CONFIG_SMBFS) += cifs_md4.o

redhat/rhel_files/filter-modules.sh.rhel

@@ -33,7 +33,7 @@ scsidrvs="aacraid aic7xxx aic94xx be2iscsi bfa bnx2i bnx2fc csiostor cxgbi esas2
 
 usbdrvs="atm image misc serial wusbcore"
 
-fsdrvs="affs befs cifs coda cramfs ecryptfs hfs hfsplus jfs minix ncpfs nilfs2 ocfs2 reiserfs romfs squashfs sysv ubifs ufs"
+fsdrvs="affs befs smb coda cramfs ecryptfs hfs hfsplus jfs minix ncpfs nilfs2 ocfs2 reiserfs romfs squashfs sysv ubifs ufs"
 
 netprots="6lowpan appletalk atm ax25 batman-adv bluetooth can dccp dsa ieee802154 irda l2tp mac80211 mac802154 mpls netrom nfc rds rfkill rose sctp smc wireless"