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-rw-r--r--target/linux/brcm2708/patches-4.4/0222-net-fix-bridge-multicast-packet-checksum-validation.patch75
1 files changed, 0 insertions, 75 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0222-net-fix-bridge-multicast-packet-checksum-validation.patch b/target/linux/brcm2708/patches-4.4/0222-net-fix-bridge-multicast-packet-checksum-validation.patch
deleted file mode 100644
index b3f105b..0000000
--- a/target/linux/brcm2708/patches-4.4/0222-net-fix-bridge-multicast-packet-checksum-validation.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-From 966e306c7690f118bedf2f5de94e22e487bd39ec Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
-Date: Wed, 24 Feb 2016 04:21:42 +0100
-Subject: [PATCH 222/232] net: fix bridge multicast packet checksum validation
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-We need to update the skb->csum after pulling the skb, otherwise
-an unnecessary checksum (re)computation can ocure for IGMP/MLD packets
-in the bridge code. Additionally this fixes the following splats for
-network devices / bridge ports with support for and enabled RX checksum
-offloading:
-
-[...]
-[ 43.986968] eth0: hw csum failure
-[ 43.990344] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.4.0 #2
-[ 43.996193] Hardware name: BCM2709
-[ 43.999647] [<800204e0>] (unwind_backtrace) from [<8001cf14>] (show_stack+0x10/0x14)
-[ 44.007432] [<8001cf14>] (show_stack) from [<801ab614>] (dump_stack+0x80/0x90)
-[ 44.014695] [<801ab614>] (dump_stack) from [<802e4548>] (__skb_checksum_complete+0x6c/0xac)
-[ 44.023090] [<802e4548>] (__skb_checksum_complete) from [<803a055c>] (ipv6_mc_validate_checksum+0x104/0x178)
-[ 44.032959] [<803a055c>] (ipv6_mc_validate_checksum) from [<802e111c>] (skb_checksum_trimmed+0x130/0x188)
-[ 44.042565] [<802e111c>] (skb_checksum_trimmed) from [<803a06e8>] (ipv6_mc_check_mld+0x118/0x338)
-[ 44.051501] [<803a06e8>] (ipv6_mc_check_mld) from [<803b2c98>] (br_multicast_rcv+0x5dc/0xd00)
-[ 44.060077] [<803b2c98>] (br_multicast_rcv) from [<803aa510>] (br_handle_frame_finish+0xac/0x51c)
-[...]
-
-Fixes: 9afd85c9e455 ("net: Export IGMP/MLD message validation code")
-Reported-by: Álvaro Fernández Rojas <noltari@gmail.com>
-Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- net/core/skbuff.c | 22 ++++++++++++++++++++--
- 1 file changed, 20 insertions(+), 2 deletions(-)
-
---- a/net/core/skbuff.c
-+++ b/net/core/skbuff.c
-@@ -2965,6 +2965,24 @@ int skb_append_pagefrags(struct sk_buff
- EXPORT_SYMBOL_GPL(skb_append_pagefrags);
-
- /**
-+ * skb_push_rcsum - push skb and update receive checksum
-+ * @skb: buffer to update
-+ * @len: length of data pulled
-+ *
-+ * This function performs an skb_push on the packet and updates
-+ * the CHECKSUM_COMPLETE checksum. It should be used on
-+ * receive path processing instead of skb_push unless you know
-+ * that the checksum difference is zero (e.g., a valid IP header)
-+ * or you are setting ip_summed to CHECKSUM_NONE.
-+ */
-+static unsigned char *skb_push_rcsum(struct sk_buff *skb, unsigned len)
-+{
-+ skb_push(skb, len);
-+ skb_postpush_rcsum(skb, skb->data, len);
-+ return skb->data;
-+}
-+
-+/**
- * skb_pull_rcsum - pull skb and update receive checksum
- * @skb: buffer to update
- * @len: length of data pulled
-@@ -4101,9 +4119,9 @@ struct sk_buff *skb_checksum_trimmed(str
- if (!pskb_may_pull(skb_chk, offset))
- goto err;
-
-- __skb_pull(skb_chk, offset);
-+ skb_pull_rcsum(skb_chk, offset);
- ret = skb_chkf(skb_chk);
-- __skb_push(skb_chk, offset);
-+ skb_push_rcsum(skb_chk, offset);
-
- if (ret)
- goto err;