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rxrpc: rxperf: Fix missing decoding of terminal magic cookie

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[ Upstream commit c34d999ca3 ]

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.

Fixes: 75bfdbf2fc ("rxrpc: Implement an in-kernel rxperf server for testing purposes")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250218192250.296870-2-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Howells 2025-02-18 19:22:44 +00:00 committed by Greg Kroah-Hartman
parent 5c9921f1da
commit b5c7428d34
1 changed files with 12 additions and 0 deletions
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12
net/rxrpc/rxperf.c
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@ -478,6 +478,18 @@ 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;