Patch "iwlwifi: mvm: checksum IPv6 fragmented packet" has been added to the 4.7-stable tree
From: <gregkh@linuxfoundation.org>
Date: 2016-10-04 16:22:46
This is a note to let you know that I've just added the patch titled
iwlwifi: mvm: checksum IPv6 fragmented packet
to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iwlwifi-mvm-checksum-ipv6-fragmented-packet.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let [off-list ref] know about it.
From ecf51424152bad1b2727409f42ddf1bd86f44b7d Mon Sep 17 00:00:00 2001
From: Sara Sharon <redacted>
Date: Wed, 8 Jun 2016 15:15:41 +0300
Subject: iwlwifi: mvm: checksum IPv6 fragmented packet
From: Sara Sharon <redacted>
commit ecf51424152bad1b2727409f42ddf1bd86f44b7d upstream.
Our HW does not support checksum of fragmented packets.
Fix code accordingly to checksum those packets in the driver.
Signed-off-by: Sara Sharon <redacted>
Fixes: 5e6a98dc4863 ("iwlwifi: mvm: enable TCP/UDP checksum support for 9000 family")
Signed-off-by: Luca Coelho <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c@@ -138,28 +138,19 @@ static void iwl_mvm_tx_csum(struct iwl_m protocol = ipv6h->nexthdr; while (protocol != NEXTHDR_NONE && ipv6_ext_hdr(protocol)) { + struct ipv6_opt_hdr *hp; + /* only supported extension headers */ if (protocol != NEXTHDR_ROUTING && protocol != NEXTHDR_HOP && - protocol != NEXTHDR_DEST && - protocol != NEXTHDR_FRAGMENT) { + protocol != NEXTHDR_DEST) { skb_checksum_help(skb); return; } - if (protocol == NEXTHDR_FRAGMENT) { - struct frag_hdr *hp = - OPT_HDR(struct frag_hdr, skb, off); - - protocol = hp->nexthdr; - off += sizeof(struct frag_hdr); - } else { - struct ipv6_opt_hdr *hp = - OPT_HDR(struct ipv6_opt_hdr, skb, off); - - protocol = hp->nexthdr; - off += ipv6_optlen(hp); - } + hp = OPT_HDR(struct ipv6_opt_hdr, skb, off); + protocol = hp->nexthdr; + off += ipv6_optlen(hp); } /* if we get here - protocol now should be TCP/UDP */ #endif
Patches currently in stable-queue which might be from sara.sharon@intel.com are queue-4.7/iwlwifi-pcie-fix-access-to-scratch-buffer.patch queue-4.7/iwlwifi-mvm-checksum-ipv6-fragmented-packet.patch queue-4.7/iwlwifi-mvm-free-rx-reorder-buffer-on-restart.patch