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fm10k: use netdev_rss_key_fill() helper 

Use of well known RSS key increases attack surface.
Switch to a random one, using generic helper so that all
ports share a common key.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2014-11-16 06:23:12 -08:00 committed by David S. Miller
parent 5c8d19da95
commit c41a4fba4a
1 changed files with 3 additions and 7 deletions
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10
drivers/net/ethernet/intel/fm10k/fm10k_pci.c
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@ -1551,15 +1551,11 @@ void fm10k_down(struct fm10k_intfc *interface)
static int fm10k_sw_init(struct fm10k_intfc *interface, static int fm10k_sw_init(struct fm10k_intfc *interface,
const struct pci_device_id *ent) const struct pci_device_id *ent)
{ {
static const u32 seed[FM10K_RSSRK_SIZE] = { 0xda565a6d, 0xc20e5b25,
0x3d256741, 0xb08fa343,
0xcb2bcad0, 0xb4307bae,
0xa32dcb77, 0x0cf23080,
0x3bb7426a, 0xfa01acbe };
const struct fm10k_info *fi = fm10k_info_tbl[ent->driver_data]; const struct fm10k_info *fi = fm10k_info_tbl[ent->driver_data];
struct fm10k_hw *hw = &interface->hw; struct fm10k_hw *hw = &interface->hw;
struct pci_dev *pdev = interface->pdev; struct pci_dev *pdev = interface->pdev;
struct net_device *netdev = interface->netdev; struct net_device *netdev = interface->netdev;
u32 rss_key[FM10K_RSSRK_SIZE];
unsigned int rss; unsigned int rss;
int err; int err;
@ -1673,8 +1669,8 @@ static int fm10k_sw_init(struct fm10k_intfc *interface,
/* initialize vxlan_port list */ /* initialize vxlan_port list */
INIT_LIST_HEAD(&interface->vxlan_port); INIT_LIST_HEAD(&interface->vxlan_port);
/* initialize RSS key */ netdev_rss_key_fill(rss_key, sizeof(rss_key));
memcpy(interface->rssrk, seed, sizeof(seed)); memcpy(interface->rssrk, rss_key, sizeof(rss_key));
/* Start off interface as being down */ /* Start off interface as being down */
set_bit(__FM10K_DOWN, &interface->state); set_bit(__FM10K_DOWN, &interface->state);