From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B60C2F9992; Tue, 26 Aug 2025 13:46:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756215990; cv=none; b=H5pCzs++nZK0zdD2CnU+qeiYZHHyEHfBPcncerOpOPvEYKoOtTMpAj36QBaU/V9hEcpVQrsBLdl6M+lvH2thcsh9ZROhDHXHJwm5w82wme/n0GV4ItiYZuDAk4j51jYIfdqIgolJ6AgArK6catGj7FbFj24PFe4x9U3w1SrfbXQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756215990; c=relaxed/simple; bh=yWxJNDCOiQwS/rUK7cdBQvVh4np8cDa6wT8v1fSbqxs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jk9d+3Sz+Ouw1ur/cSYpVtyUuhUTtlk8qxgUgwvAvc9F6M9B1TMGo32ylU8qnNURA3e4170jdcc/TzDb7ZX/n8nqbpywWxpqHf7I3BOrUsgOzx2lUEiuWI847cZec5ZDsOPuKBnH7aHB/I3rzQ7V9kK3CMQ6DAbp32CY0o5s0JA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=b733rPJv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="b733rPJv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A304DC4CEF1; Tue, 26 Aug 2025 13:46:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756215990; bh=yWxJNDCOiQwS/rUK7cdBQvVh4np8cDa6wT8v1fSbqxs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b733rPJvNVd3nv5mAgxLe6HptAl03jjMzAMcGCv+5kG94Xoz0mEHR6K5t+pquKLT+ nAIkZLm9ijD+y3hRIWJt4taMYTLwUkOirD+KE4xU7L4pffL8d+3mB5bXz3xWYQaTp2 u9d4NGor6xMRS3rxjstgvv0R84/3EqMbxaIVXnU8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Steve French , Tom Talpey , Long Li , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, Stefan Metzmacher , Steve French , Sasha Levin Subject: [PATCH 5.15 243/644] smb: client: let recv_done() cleanup before notifying the callers. Date: Tue, 26 Aug 2025 13:05:34 +0200 Message-ID: <20250826110952.416232907@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110946.507083938@linuxfoundation.org> References: <20250826110946.507083938@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefan Metzmacher [ Upstream commit bdd7afc6dca5e0ebbb75583484aa6ea9e03fbb13 ] We should call put_receive_buffer() before waking up the callers. For the internal error case of response->type being unexpected, we now also call smbd_disconnect_rdma_connection() instead of not waking up the callers at all. Note that the SMBD_TRANSFER_DATA case still has problems, which will be addressed in the next commit in order to make it easier to review this one. Cc: Steve French Cc: Tom Talpey Cc: Long Li Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection") Signed-off-by: Stefan Metzmacher Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/cifs/smbdirect.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c index a9a5d27b8d38..48bd879349fb 100644 --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -455,7 +455,6 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_RECV) { log_rdma_recv(INFO, "wc->status=%d opcode=%d\n", wc->status, wc->opcode); - smbd_disconnect_rdma_connection(info); goto error; } @@ -472,8 +471,9 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) info->full_packet_received = true; info->negotiate_done = process_negotiation_response(response, wc->byte_len); + put_receive_buffer(info, response); complete(&info->negotiate_completion); - break; + return; /* SMBD data transfer packet */ case SMBD_TRANSFER_DATA: @@ -530,14 +530,16 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) } return; - - default: - log_rdma_recv(ERR, - "unexpected response type=%d\n", response->type); } + /* + * This is an internal error! + */ + log_rdma_recv(ERR, "unexpected response type=%d\n", response->type); + WARN_ON_ONCE(response->type != SMBD_TRANSFER_DATA); error: put_receive_buffer(info, response); + smbd_disconnect_rdma_connection(info); } static struct rdma_cm_id *smbd_create_id( -- 2.39.5