From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:36714 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752486AbdFLJU5 (ORCPT ); Mon, 12 Jun 2017 05:20:57 -0400 Subject: Patch "xen-netfront: cast grant table reference first to type int" has been added to the 4.4-stable tree To: dongli.zhang@oracle.com, blake.cooper@braintreepayments.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 12 Jun 2017 11:19:33 +0200 Message-ID: <1497259173421@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled xen-netfront: cast grant table reference first to type int to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: xen-netfront-cast-grant-table-reference-first-to-type-int.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 269ebce4531b8edc4224259a02143181a1c1d77c Mon Sep 17 00:00:00 2001 From: Dongli Zhang Date: Wed, 2 Nov 2016 09:04:33 +0800 Subject: xen-netfront: cast grant table reference first to type int From: Dongli Zhang commit 269ebce4531b8edc4224259a02143181a1c1d77c upstream. IS_ERR_VALUE() in commit 87557efc27f6a50140fb20df06a917f368ce3c66 ("xen-netfront: do not cast grant table reference to signed short") would not return true for error code unless we cast ref first to type int. Signed-off-by: Dongli Zhang Signed-off-by: David S. Miller Cc: Blake Cooper Signed-off-by: Greg Kroah-Hartman --- drivers/net/xen-netfront.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -304,7 +304,7 @@ static void xennet_alloc_rx_buffers(stru queue->rx_skbs[id] = skb; ref = gnttab_claim_grant_reference(&queue->gref_rx_head); - WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)ref)); + WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref)); queue->grant_rx_ref[id] = ref; page = skb_frag_page(&skb_shinfo(skb)->frags[0]); @@ -437,7 +437,7 @@ static void xennet_tx_setup_grant(unsign id = get_id_from_freelist(&queue->tx_skb_freelist, queue->tx_skbs); tx = RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++); ref = gnttab_claim_grant_reference(&queue->gref_tx_head); - WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)ref)); + WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref)); gnttab_grant_foreign_access_ref(ref, queue->info->xbdev->otherend_id, gfn, GNTMAP_readonly); Patches currently in stable-queue which might be from dongli.zhang@oracle.com are queue-4.4/xen-netfront-do-not-cast-grant-table-reference-to-signed-short.patch queue-4.4/xen-netfront-cast-grant-table-reference-first-to-type-int.patch