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authorStanislav Fomichev <sdf@google.com>2019-04-22 18:55:48 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2019-04-23 19:36:34 +0300
commitc43f1255b866b423d2381f77eaa2cbc64a9c49aa (patch)
tree9bac3c053cce8c9a6ff3091f19cbd0af608adfca /net/ethernet
parent9b52e3f267a6835efd50ed9002d530666d16a411 (diff)
downloadlinux-c43f1255b866b423d2381f77eaa2cbc64a9c49aa.tar.xz
net: pass net_device argument to the eth_get_headlen
Update all users of eth_get_headlen to pass network device, fetch network namespace from it and pass it down to the flow dissector. This commit is a noop until administrator inserts BPF flow dissector program. Cc: Maxim Krasnyansky <maxk@qti.qualcomm.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: intel-wired-lan@lists.osuosl.org Cc: Yisen Zhuang <yisen.zhuang@huawei.com> Cc: Salil Mehta <salil.mehta@huawei.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/ethernet')
-rw-r--r--net/ethernet/eth.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 1e439549c419..0f9863dc4d44 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -119,13 +119,14 @@ EXPORT_SYMBOL(eth_header);
/**
* eth_get_headlen - determine the length of header for an ethernet frame
+ * @dev: pointer to network device
* @data: pointer to start of frame
* @len: total length of frame
*
* Make a best effort attempt to pull the length for all of the headers for
* a given frame in a linear buffer.
*/
-u32 eth_get_headlen(void *data, unsigned int len)
+u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len)
{
const unsigned int flags = FLOW_DISSECTOR_F_PARSE_1ST_FRAG;
const struct ethhdr *eth = (const struct ethhdr *)data;
@@ -136,7 +137,7 @@ u32 eth_get_headlen(void *data, unsigned int len)
return len;
/* parse any remaining L2/L3 headers, check for L4 */
- if (!skb_flow_dissect_flow_keys_basic(NULL, NULL, &keys, data,
+ if (!skb_flow_dissect_flow_keys_basic(dev_net(dev), NULL, &keys, data,
eth->h_proto, sizeof(*eth),
len, flags))
return max_t(u32, keys.control.thoff, sizeof(*eth));