Merge tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "These patches fix a problem with compiling using an old version of
  gcc, and also fix up error handling in the SUNRPC layer.

   - NFSv4: Ensure gcc 4.4.4 can compile initialiser for
     "invalid_stateid"

   - SUNRPC: Allow connect to return EHOSTUNREACH

   - SUNRPC: Handle ENETDOWN errors"

* tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC: Handle ENETDOWN errors
  SUNRPC: Allow connect to return EHOSTUNREACH
  NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"

3 files changed, 9 insertions, 2 deletions

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 54fd56d715a8..e4f4a09ed9f4 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -71,8 +71,8 @@ const nfs4_stateid zero_stateid = {
 };
 const nfs4_stateid invalid_stateid = {
         {
-                .seqid = cpu_to_be32(0xffffffffU),
-                .other = { 0 },
+                /* Funky initialiser keeps older gcc versions happy */
+                .data = { 0xff, 0xff, 0xff, 0xff, 0 },
         },
         .type = NFS4_INVALID_STATEID_TYPE,
 };
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index a801da812f86..e2a4184f3c5d 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1841,6 +1841,7 @@ call_bind_status(struct rpc_task *task)
         case -ECONNABORTED:
         case -ENOTCONN:
         case -EHOSTDOWN:
+        case -ENETDOWN:
         case -EHOSTUNREACH:
         case -ENETUNREACH:
         case -ENOBUFS:
@@ -1917,6 +1918,7 @@ call_connect_status(struct rpc_task *task)
                 /* fall through */
         case -ECONNRESET:
         case -ECONNABORTED:
+        case -ENETDOWN:
         case -ENETUNREACH:
         case -EHOSTUNREACH:
         case -EADDRINUSE:
@@ -2022,6 +2024,7 @@ call_transmit_status(struct rpc_task *task)
                  */
         case -ECONNREFUSED:
         case -EHOSTDOWN:
+        case -ENETDOWN:
         case -EHOSTUNREACH:
         case -ENETUNREACH:
         case -EPERM:
@@ -2071,6 +2074,7 @@ call_bc_transmit(struct rpc_task *task)
         switch (task->tk_status) {
         case 0:
                 /* Success */
+        case -ENETDOWN:
         case -EHOSTDOWN:
         case -EHOSTUNREACH:
         case -ENETUNREACH:
@@ -2139,6 +2143,7 @@ call_status(struct rpc_task *task)
         task->tk_status = 0;
         switch(status) {
         case -EHOSTDOWN:
+        case -ENETDOWN:
         case -EHOSTUNREACH:
         case -ENETUNREACH:
         case -EPERM:
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9cc850c2719e..6d0cc3b8f932 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2440,7 +2440,9 @@ static void xs_tcp_setup_socket(struct work_struct *work)
                  */
         case -ECONNREFUSED:
         case -ECONNRESET:
+        case -ENETDOWN:
         case -ENETUNREACH:
+        case -EHOSTUNREACH:
         case -EADDRINUSE:
         case -ENOBUFS:
                 /*