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iwlwifi: mvm: checksum IPv6 fragmented packet

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Our HW does not support checksum of fragmented packets.
Fix code accordingly to checksum those packets in the driver.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Fixes: 5e6a98dc48 ("iwlwifi: mvm: enable TCP/UDP checksum support for 9000 family")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Sara Sharon 2016-06-08 15:15:41 +03:00 committed by Luca Coelho
parent 849a962729
commit ecf5142415
1 changed files with 6 additions and 15 deletions
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21
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
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@ -138,28 +138,19 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb,
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