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From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Cc: Jeff Layton <jlayton@kernel.org>, Josef Bacik <josef@toxicpanda.com>
Subject: [PATCH v2 1/4] SUNRPC: rpcbind should never reset the port to the value '0'
Date: Tue, 25 Mar 2025 12:17:41 -0400	[thread overview]
Message-ID: <8b9a709ef321aa246b9ef00a8bcfa71a77df4245.1742919341.git.trond.myklebust@hammerspace.com> (raw)
In-Reply-To: <cover.1742919341.git.trond.myklebust@hammerspace.com>

From: Trond Myklebust <trond.myklebust@hammerspace.com>

If we already had a valid port number for the RPC service, then we
should not allow the rpcbind client to set it to the invalid value '0'.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 net/sunrpc/rpcb_clnt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 102c3818bc54..53bcca365fb1 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -820,9 +820,10 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
 	}
 
 	trace_rpcb_setport(child, map->r_status, map->r_port);
-	xprt->ops->set_port(xprt, map->r_port);
-	if (map->r_port)
+	if (map->r_port) {
+		xprt->ops->set_port(xprt, map->r_port);
 		xprt_set_bound(xprt);
+	}
 }
 
 /*
-- 
2.49.0


  reply	other threads:[~2025-03-25 16:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-25 16:17 [PATCH v2 0/4] Ensure that ENETUNREACH terminates state recovery trondmy
2025-03-25 16:17 ` trondmy [this message]
2025-03-25 17:56   ` [PATCH v2 1/4] SUNRPC: rpcbind should never reset the port to the value '0' Jeff Layton
2025-03-25 16:17 ` [PATCH v2 2/4] SUNRPC: rpc_clnt_set_transport() must not change the autobind setting trondmy
2025-03-25 17:55   ` Jeff Layton
2025-03-25 16:17 ` [PATCH v2 3/4] NFSv4: clp->cl_cons_state < 0 signifies an invalid nfs_client trondmy
2025-03-25 17:59   ` Jeff Layton
2025-03-25 18:48     ` Trond Myklebust
2025-03-25 19:44       ` Jeff Layton
2025-03-25 20:30         ` Trond Myklebust
2025-03-25 16:17 ` [PATCH v2 4/4] NFSv4: Treat ENETUNREACH errors as fatal for state recovery trondmy
2025-03-25 18:04   ` Jeff Layton
2025-03-25 18:50     ` Trond Myklebust
2025-03-25 19:26       ` Jeff Layton
2025-03-25 19:40 ` Concerns about ENETUNREACH patch series Re: [PATCH v2 0/4] Ensure that ENETUNREACH terminates " Lionel Cons
2025-03-25 20:42   ` Trond Myklebust

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