netdev - [PATCH stable 4.9.x] Revert "net: usb: ax88179_178a needs FLAG_SEND

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Message-Id: <20220815151912.319147-1-joalonsof@gmail.com>
Date:   Mon, 15 Aug 2022 12:19:12 -0300
From:   Jose Alonso <joalonsof@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     netdev <netdev@...r.kernel.org>, stable <stable@...r.kernel.org>,
        Ronald Wahl <ronald.wahl@...itan.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Jose Alonso <joalonsof@...il.com>
Subject: [PATCH stable 4.9.x] Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP"

commit 6fd2c17fb6e02a8c0ab51df1cfec82ce96b8e83d upstream.

This reverts commit 36a15e1cb134c0395261ba1940762703f778438c.

The usage of FLAG_SEND_ZLP causes problems to other firmware/hardware
versions that have no issues.

The FLAG_SEND_ZLP is not safe to use in this context.
See:
https://patchwork.ozlabs.org/project/netdev/patch/1270599787.8900.8.camel@Linuxdev4-laptop/#118378
The original problem needs another way to solve.

Fixes: 36a15e1cb134 ("net: usb: ax88179_178a needs FLAG_SEND_ZLP")
Cc: stable@...r.kernel.org
Reported-by: Ronald Wahl <ronald.wahl@...itan.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216327
Link: https://bugs.archlinux.org/task/75491
Signed-off-by: Jose Alonso <joalonsof@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/usb/ax88179_178a.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 460a0294ea97..48938d00ff7e 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1703,7 +1703,7 @@ static const struct driver_info ax88179_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1716,7 +1716,7 @@ static const struct driver_info ax88178a_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1729,7 +1729,7 @@ static const struct driver_info cypress_GX3_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1742,7 +1742,7 @@ static const struct driver_info dlink_dub1312_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1755,7 +1755,7 @@ static const struct driver_info sitecom_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1768,7 +1768,7 @@ static const struct driver_info samsung_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
@@ -1781,7 +1781,7 @@ static const struct driver_info lenovo_info = {
 	.link_reset = ax88179_link_reset,
 	.reset = ax88179_reset,
 	.stop = ax88179_stop,
-	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
+	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = ax88179_rx_fixup,
 	.tx_fixup = ax88179_tx_fixup,
 };
-- 
2.37.1