From 75b23fa0a4916a228b2b66e73044378931862a49 Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Sun, 30 Jan 2022 23:40:05 +0100
Subject: [PATCH] basic: update CIFS magic

Kernel commit dea2903719283c156b53741126228c4a1b40440f exposed (and
renamed) CIFS_MAGIC_NUMBER as CIFS_SUPER_MAGIC along with
SMB2_SUPER_MAGIC.

This fixes the following build fail on current Fedora Rawhide:
```
../src/basic/meson.build:389:8: ERROR: Problem encountered: found unknown filesystem(s) defined in kernel headers:

Filesystem found in kernel header but not in filesystems-gperf.gperf: CIFS_SUPER_MAGIC
Filesystem found in kernel header but not in filesystems-gperf.gperf: SMB2_SUPER_MAGIC
```

(cherry picked from commit bbe53713455be38c0a587626439fd171f28c77fc)

Related: #2017035
---
 src/basic/filesystems-gperf.gperf |  4 ++--
 src/basic/missing_magic.h         | 11 ++++++++---
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/basic/filesystems-gperf.gperf b/src/basic/filesystems-gperf.gperf
index 08c8c44510..e8c5357f91 100644
--- a/src/basic/filesystems-gperf.gperf
+++ b/src/basic/filesystems-gperf.gperf
@@ -40,7 +40,7 @@ ceph,            {CEPH_SUPER_MAGIC}
 cgroup2,         {CGROUP2_SUPER_MAGIC}
 # note that the cgroupfs magic got reassigned from cpuset
 cgroup,          {CGROUP_SUPER_MAGIC}
-cifs,            {CIFS_MAGIC_NUMBER}
+cifs,            {CIFS_SUPER_MAGIC, SMB2_SUPER_MAGIC}
 coda,            {CODA_SUPER_MAGIC}
 configfs,        {CONFIGFS_MAGIC}
 cramfs,          {CRAMFS_MAGIC}
@@ -109,7 +109,7 @@ selinuxfs,       {SELINUX_MAGIC}
 shiftfs,         {SHIFTFS_MAGIC}
 smackfs,         {SMACK_MAGIC}
 # smb3 is an alias for cifs
-smb3,            {CIFS_MAGIC_NUMBER}
+smb3,            {CIFS_SUPER_MAGIC}
 # smbfs was removed from the kernel in 2010, the magic remains
 smbfs,           {SMB_SUPER_MAGIC}
 sockfs,          {SOCKFS_MAGIC}
diff --git a/src/basic/missing_magic.h b/src/basic/missing_magic.h
index 7d9320bb6d..c104fcfba3 100644
--- a/src/basic/missing_magic.h
+++ b/src/basic/missing_magic.h
@@ -38,9 +38,14 @@
 #define XFS_SB_MAGIC 0x58465342
 #endif
 
-/* Not exposed yet. Defined at fs/cifs/cifsglob.h */
-#ifndef CIFS_MAGIC_NUMBER
-#define CIFS_MAGIC_NUMBER 0xFF534D42
+/* dea2903719283c156b53741126228c4a1b40440f (5.17) */
+#ifndef CIFS_SUPER_MAGIC
+#define CIFS_SUPER_MAGIC 0xFF534D42
+#endif
+
+/* dea2903719283c156b53741126228c4a1b40440f (5.17) */
+#ifndef SMB2_SUPER_MAGIC
+#define SMB2_SUPER_MAGIC 0xFE534D42
 #endif
 
 /* 257f871993474e2bde6c497b54022c362cf398e1 (4.5) */