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 E896227703A; Tue, 12 Aug 2025 19:25:44 +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=1755026745; cv=none; b=bCjirgPRC0tHuCLUvi9IFbsnA8yU1kOk+bZ2MfVipHre5x86IaDsz2dXcnIMRyoTvXJqHdoBYQ/TKkzLs7K9M9qo8xGERl2ZsCh+M933/+VUfIGthPAs0wx8K4t+fmUpwP0Snv0M+Tr3ANHd48nhmLbuI/Ztu75guvGYyKLmqIA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026745; c=relaxed/simple; bh=yNlFVXpdBB7n7W8DPskVgyktl8H1Xm/JyMNLVhyapWs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cP7SsXxkEyCMJGH3a3lb/+AZ5Luq3lI31fbnROyZtwABzVDNiIeMNJr7T1X5XFM4P8HPBwCu1B6+oG98owqUpEf3F6ucEhmxD8hY1uGi/B2iJCdjqmWXv24YdAfwq8+t/bAhr1VwXSGTVymNUqOLKxZyVfnIvpOS+NxyG0atqp0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dkg+SNL8; 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="dkg+SNL8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB475C4CEF0; Tue, 12 Aug 2025 19:25:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755026744; bh=yNlFVXpdBB7n7W8DPskVgyktl8H1Xm/JyMNLVhyapWs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dkg+SNL8OJvmY3j2uXPRzuEbLLi0r5an/IWLAD4JA/NC0Hp92ibRbpca1af1sNy8D w2TocI4oP16tadLds2R++KI1tSkMrIY7GNr7KSqdPO3M0YGW+4MX8WcAw75RuDAp11 AvI1PCvmBhTAxrr0VAqdNe85KpE3pjtz1fLr3cTI= 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 6.15 427/480] smb: client: let recv_done() cleanup before notifying the callers. Date: Tue, 12 Aug 2025 19:50:35 +0200 Message-ID: <20250812174415.016944393@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812174357.281828096@linuxfoundation.org> References: <20250812174357.281828096@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-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/smb/client/smbdirect.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c index 5690e8b3d101..d26b8cef82d6 100644 --- a/fs/smb/client/smbdirect.c +++ b/fs/smb/client/smbdirect.c @@ -454,7 +454,6 @@ 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; } @@ -471,8 +470,9 @@ 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: @@ -529,14 +529,16 @@ 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