From c41a4fba4a220c644ba6641c779cf427729f2eec Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 16 Nov 2014 06:23:12 -0800 Subject: [PATCH] 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 Cc: Jeff Kirsher Cc: Jesse Brandeburg Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index a0cb74ab3dc6..4f5892cc32d7 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -1551,15 +1551,11 @@ void fm10k_down(struct fm10k_intfc *interface) static int fm10k_sw_init(struct fm10k_intfc *interface, 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]; struct fm10k_hw *hw = &interface->hw; struct pci_dev *pdev = interface->pdev; struct net_device *netdev = interface->netdev; + u32 rss_key[FM10K_RSSRK_SIZE]; unsigned int rss; int err; @@ -1673,8 +1669,8 @@ static int fm10k_sw_init(struct fm10k_intfc *interface, /* initialize vxlan_port list */ INIT_LIST_HEAD(&interface->vxlan_port); - /* initialize RSS key */ - memcpy(interface->rssrk, seed, sizeof(seed)); + netdev_rss_key_fill(rss_key, sizeof(rss_key)); + memcpy(interface->rssrk, rss_key, sizeof(rss_key)); /* Start off interface as being down */ set_bit(__FM10K_DOWN, &interface->state); -- 2.20.1