linux-kernel - [PATCH 2/3] cifs: make cifs_chan_update

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Message-ID: <eac139a7-76d4-4067-8c25-15e30692aaf9@moroto.mountain>
Date: Mon, 8 Jan 2024 12:08:29 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Steve French <sfrench@...ba.org>
Cc: Paulo Alcantara <pc@...guebit.com>,
	Ronnie Sahlberg <lsahlber@...hat.com>,
	Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
	linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] cifs: make cifs_chan_update_iface() a void function

The return values for cifs_chan_update_iface() didn't match what the
documentation said and nothing was checking them anyway.  Just make it
a void function.

Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 fs/smb/client/cifsproto.h |  2 +-
 fs/smb/client/sess.c      | 17 +++++++----------
 2 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h
index afbab86331a1..a841bf4967fa 100644
--- a/fs/smb/client/cifsproto.h
+++ b/fs/smb/client/cifsproto.h
@@ -656,7 +656,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses,
 			  struct TCP_Server_Info *server);
 void
 cifs_disable_secondary_channels(struct cifs_ses *ses);
-int
+void
 cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);
 int
 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount);
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index 775c6a4a2f4b..f7b216dd06b2 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -356,10 +356,9 @@ cifs_disable_secondary_channels(struct cifs_ses *ses)
 
 /*
  * update the iface for the channel if necessary.
- * will return 0 when iface is updated, 1 if removed, 2 otherwise
  * Must be called with chan_lock held.
  */
-int
+void
 cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 {
 	unsigned int chan_index;
@@ -368,20 +367,19 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 	struct cifs_server_iface *old_iface = NULL;
 	struct cifs_server_iface *last_iface = NULL;
 	struct sockaddr_storage ss;
-	int rc = 0;
 
 	spin_lock(&ses->chan_lock);
 	chan_index = cifs_ses_get_chan_index(ses, server);
 	if (chan_index == CIFS_INVAL_CHAN_INDEX) {
 		spin_unlock(&ses->chan_lock);
-		return 0;
+		return;
 	}
 
 	if (ses->chans[chan_index].iface) {
 		old_iface = ses->chans[chan_index].iface;
 		if (old_iface->is_active) {
 			spin_unlock(&ses->chan_lock);
-			return 1;
+			return;
 		}
 	}
 	spin_unlock(&ses->chan_lock);
@@ -394,7 +392,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 	if (!ses->iface_count) {
 		spin_unlock(&ses->iface_lock);
 		cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname);
-		return 0;
+		return;
 	}
 
 	last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface,
@@ -434,7 +432,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 	}
 
 	if (list_entry_is_head(iface, &ses->iface_list, iface_head)) {
-		rc = 1;
 		iface = NULL;
 		cifs_dbg(FYI, "unable to find a suitable iface\n");
 	}
@@ -449,7 +446,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 		}
 
 		spin_unlock(&ses->iface_lock);
-		return 0;
+		return;
 	}
 
 	/* now drop the ref to the current iface */
@@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 	chan_index = cifs_ses_get_chan_index(ses, server);
 	if (chan_index == CIFS_INVAL_CHAN_INDEX) {
 		spin_unlock(&ses->chan_lock);
-		return 0;
+		return;
 	}
 
 	ses->chans[chan_index].iface = iface;
 	spin_unlock(&ses->chan_lock);
 
-	return rc;
+	return;
 }
 
 /*
-- 
2.42.0