Merge tag '4.18-rc1-more-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Misc SMB3 fixes, including particularly important ones for signing,
  some minor documentation and debug improvements and another posix
  smb3.11 fix"

* tag '4.18-rc1-more-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix invalid check in __cifs_calc_signature()
  cifs: Use correct packet length in SMB2_TRANSFORM header
  smb3: fix corrupt path in subdirs on smb311 with posix
  smb3: do not display empty interface list
  smb3: Fix mode on mkdir on smb311 mounts
  cifs: Fix kernel oops when traceSMB is enabled
  CIFS: dump every session iface info
  CIFS: parse and store info on iface queries
  CIFS: add iface info to struct cifs_ses
  CIFS: complete PDU definitions for interface queries
  CIFS: move default port definitions to cifsglob.h
  cifs: Fix encryption/signing
  cifs: update __smb_send_rqst() to take an array of requests
  cifs: remove smb2_send_recv()
  cifs: push rfc1002 generation down the stack
  smb3: increase initial number of credits requested to allow write
  cifs: minor documentation updates
  cifs: add lease tracking to the cached root fid
  smb3: note that smb3.11 posix extensions mount option is experimental

1 files changed, 11 insertions, 2 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index f4697f548a39..a2cfb33e85c1 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1575,6 +1575,17 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
 		goto mkdir_out;
 	}
 
+	server = tcon->ses->server;
+
+#ifdef CONFIG_CIFS_SMB311
+	if ((server->ops->posix_mkdir) && (tcon->posix_extensions)) {
+		rc = server->ops->posix_mkdir(xid, inode, mode, tcon, full_path,
+					      cifs_sb);
+		d_drop(direntry); /* for time being always refresh inode info */
+		goto mkdir_out;
+	}
+#endif /* SMB311 */
+
 	if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
 				le64_to_cpu(tcon->fsUnixInfo.Capability))) {
 		rc = cifs_posix_mkdir(inode, direntry, mode, full_path, cifs_sb,
@@ -1583,8 +1594,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
 			goto mkdir_out;
 	}
 
-	server = tcon->ses->server;
-
 	if (!server->ops->mkdir) {
 		rc = -ENOSYS;
 		goto mkdir_out;