bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch b/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch
deleted file mode 100644 (file)
index d914880..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From a242ba451fd64f0b9f07605ff0d8f6981aa6e955 Mon Sep 17 00:00:00 2001
-From: Joshua Emele <jemele@acm.org>
-Date: Wed, 7 Nov 2018 16:07:40 -0800
-Subject: [PATCH] lan78xx: Debounce link events to minimize poll storm
-
-The bInterval is set to 4 (i.e. 8 microframes => 1ms) and the only bit
-that the driver pays attention to is "link was reset". If there's a
-flapping status bit in that endpoint data, (such as if PHY negotiation
-needs a few tries to get a stable link) then polling at a slower rate
-would act as a de-bounce.
-
-See: https://github.com/raspberrypi/linux/issues/2447
----
- drivers/net/usb/lan78xx.c | 13 ++++++++++++-
- 1 file changed, 12 insertions(+), 1 deletion(-)
-
---- a/drivers/net/usb/lan78xx.c
-+++ b/drivers/net/usb/lan78xx.c
-@@ -436,6 +436,11 @@ static bool enable_tso;
- module_param(enable_tso, bool, 0644);
- MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload");
- 
-+#define INT_URB_MICROFRAMES_PER_MS    8
-+static int int_urb_interval_ms = 8;
-+module_param(int_urb_interval_ms, int, 0);
-+MODULE_PARM_DESC(int_urb_interval_ms, "Override usb interrupt urb interval");
-+
- static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
- {
-       u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
-@@ -3770,7 +3775,13 @@ static int lan78xx_probe(struct usb_inte
-       netdev->max_mtu = MAX_SINGLE_PACKET_SIZE;
-       netif_set_gso_max_size(netdev, MAX_SINGLE_PACKET_SIZE - MAX_HEADER);
- 
--      period = ep_intr->desc.bInterval;
-+      if (int_urb_interval_ms <= 0)
-+              period = ep_intr->desc.bInterval;
-+      else
-+              period = int_urb_interval_ms * INT_URB_MICROFRAMES_PER_MS;
-+
-+      netif_notice(dev, probe, netdev, "int urb period %d\n", period);
-+
-       maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0);
-       buf = kmalloc(maxp, GFP_KERNEL);
-       if (buf) {