From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julian Wiedmann Subject: [PATCH net 2/4] s390/qeth: don't apply takeover changes to RXIP Date: Wed, 13 Dec 2017 18:56:30 +0100 Message-ID: <20171213175632.100561-3-jwi@linux.vnet.ibm.com> References: <20171213175632.100561-1-jwi@linux.vnet.ibm.com> Cc: , , Martin Schwidefsky , Heiko Carstens , Stefan Raspl , Ursula Braun , Julian Wiedmann To: David Miller Return-path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:60832 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753641AbdLMR4o (ORCPT ); Wed, 13 Dec 2017 12:56:44 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vBDHsjRU122947 for ; Wed, 13 Dec 2017 12:56:44 -0500 Received: from e06smtp12.uk.ibm.com (e06smtp12.uk.ibm.com [195.75.94.108]) by mx0b-001b2d01.pphosted.com with ESMTP id 2eu65chbpg-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 13 Dec 2017 12:56:43 -0500 Received: from localhost by e06smtp12.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 13 Dec 2017 17:56:42 -0000 In-Reply-To: <20171213175632.100561-1-jwi@linux.vnet.ibm.com> Sender: netdev-owner@vger.kernel.org List-ID: When takeover is switched off, current code clears the 'TAKEOVER' flag on all IPs. But the flag is also used for RXIP addresses, and those should not be affected by the takeover mode. Fix the behaviour by consistenly applying takover logic to NORMAL addresses only. Signed-off-by: Julian Wiedmann --- drivers/s390/net/qeth_l3_main.c | 5 +++-- drivers/s390/net/qeth_l3_sys.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 6a73894b0cb5..4a4be81800eb 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -174,6 +174,8 @@ int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card, if (!card->ipato.enabled) return 0; + if (addr->type != QETH_IP_TYPE_NORMAL) + return 0; qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits, (addr->proto == QETH_PROT_IPV4)? 4:16); @@ -290,8 +292,7 @@ int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr) memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr)); addr->ref_counter = 1; - if (addr->type == QETH_IP_TYPE_NORMAL && - qeth_l3_is_addr_covered_by_ipato(card, addr)) { + if (qeth_l3_is_addr_covered_by_ipato(card, addr)) { QETH_CARD_TEXT(card, 2, "tkovaddr"); addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; } diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 198717f71b3d..e256928092e5 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -396,10 +396,11 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, card->ipato.enabled = enable; hash_for_each(card->ip_htable, i, addr, hnode) { + if (addr->type != QETH_IP_TYPE_NORMAL) + continue; if (!enable) addr->set_flags &= ~QETH_IPA_SETIP_TAKEOVER_FLAG; - else if (addr->type == QETH_IP_TYPE_NORMAL && - qeth_l3_is_addr_covered_by_ipato(card, addr)) + else if (qeth_l3_is_addr_covered_by_ipato(card, addr)) addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; } out: -- 2.13.5