Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Alexandra Winter <wintera@linux.ibm.com>,
        Julian Wiedmann <jwi@linux.ibm.com>,
        "David S. Miller" <davem@davemloft.net>
Subject: [PATCH 5.4 034/203] s390/qeth: fix false reporting of VNIC CHAR config failure
Date:   Fri, 17 Jan 2020 00:15:51 +0100
Message-Id: <20200116231747.170050880@linuxfoundation.org>
In-Reply-To: <20200116231745.218684830@linuxfoundation.org>
References: <20200116231745.218684830@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Alexandra Winter <wintera@linux.ibm.com>

commit 68c57bfd52836e31bff33e5e1fc64029749d2c35 upstream.

Symptom: Error message "Configuring the VNIC characteristics failed"
in dmesg whenever an OSA interface on z15 is set online.

The VNIC characteristics get re-programmed when setting a L2 device
online. This follows the selected 'wanted' characteristics - with the
exception that the INVISIBLE characteristic unconditionally gets
switched off.

For devices that don't support INVISIBLE (ie. OSA), the resulting
IO failure raises a noisy error message
("Configuring the VNIC characteristics failed").
For IQD, INVISIBLE is off by default anyways.

So don't unnecessarily special-case the INVISIBLE characteristic, and
thereby suppress the misleading error message on OSA devices.

Fixes: caa1f0b10d18 ("s390/qeth: add VNICC enable/disable support")
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/s390/net/qeth_l2_main.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -2072,7 +2072,6 @@ static void qeth_l2_vnicc_init(struct qe
 	error |= qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
 					       timeout);
 	chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT;
-	chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE;
 	chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
 	for_each_set_bit(i, &chars_tmp, chars_len) {
 		vnicc = BIT(i);