4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Howells <dhowe...@redhat.com>


[ Upstream commit 1157f153f37a8586765034470e4f00a4a6c4ce6f ]

When we are given an invalid operation ID, we should abort that with
RXGEN_OPCODE rather than RX_INVALID_OPERATION.

Also map RXGEN_OPCODE to -ENOTSUPP.

Signed-off-by: David Howells <dhowe...@redhat.com>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 fs/afs/misc.c  |    2 ++
 fs/afs/rxrpc.c |    2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/fs/afs/misc.c
+++ b/fs/afs/misc.c
@@ -84,6 +84,8 @@ int afs_abort_to_error(u32 abort_code)
        case RXKADDATALEN:      return -EKEYREJECTED;
        case RXKADILLEGALLEVEL: return -EKEYREJECTED;
 
+       case RXGEN_OPCODE:      return -ENOTSUPP;
+
        default:                return -EREMOTEIO;
        }
 }
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -440,7 +440,7 @@ static void afs_deliver_to_call(struct a
                                                abort_code, -ret, "KNC");
                        goto do_abort;
                case -ENOTSUPP:
-                       abort_code = RX_INVALID_OPERATION;
+                       abort_code = RXGEN_OPCODE;
                        rxrpc_kernel_abort_call(afs_socket, call->rxcall,
                                                abort_code, -ret, "KIV");
                        goto do_abort;


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