[PATCH net v12 01/15] rxrpc: Revert "rxrpc: rxperf: Fix missing decoding of terminal magic cookie"

Revert commit c34d999ca3145d9fe858258cc3342ec493f47d2e:

    The rxperf RPCs seem to have a magic cookie at the end of the request
    that was failing to be taken account of by the unmarshalling of the
    request.  Fix the rxperf code to expect this.

Actually, this isn't true; it's just that other Rx implementations ignore
the extra data in the request and so my test programs are sending too much
data without noticeable consequence.

Fixes: c34d999ca314 ("rxrpc: rxperf: Fix missing decoding of terminal magic cookie")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Eric Dumazet <redacted>
cc: "David S. Miller" <davem@davemloft.net>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
---
 net/rxrpc/rxperf.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/net/rxrpc/rxperf.c b/net/rxrpc/rxperf.c
index b8df6d22314d..f1f41151589c 100644
--- a/net/rxrpc/rxperf.c
+++ b/net/rxrpc/rxperf.c

@@ -483,18 +483,6 @@ static int rxperf_deliver_request(struct rxperf_call *call)
 		call->unmarshal++;
 		fallthrough;
 	case 2:
-		ret = rxperf_extract_data(call, true);
-		if (ret < 0)
-			return ret;
-
-		/* Deal with the terminal magic cookie. */
-		call->iov_len = 4;
-		call->kvec[0].iov_len	= call->iov_len;
-		call->kvec[0].iov_base	= call->tmp;
-		iov_iter_kvec(&call->iter, READ, call->kvec, 1, call->iov_len);
-		call->unmarshal++;
-		fallthrough;
-	case 3:
 		ret = rxperf_extract_data(call, false);
 		if (ret < 0)
 			return ret;