From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: [PATCH net 2/7] i40e: Initialize 64-bit statistics TX ring seqcount Date: Tue, 1 Aug 2017 12:11:07 -0700 Message-ID: <20170801191113.8754-3-f.fainelli@gmail.com> References: <20170801191113.8754-1-f.fainelli@gmail.com> Cc: davem@davemloft.net, edumazet@google.com, Florian Fainelli , Jeff Kirsher , intel-wired-lan@lists.osuosl.org (moderated list:INTEL ETHERNET DRIVERS), linux-kernel@vger.kernel.org (open list) To: netdev@vger.kernel.org Return-path: In-Reply-To: <20170801191113.8754-1-f.fainelli@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a lockdep splat indicating this seqcount is not correctly initialized, fix that. Fixes: 980e9b118642 ("i40e: Add support for 64 bit netstats") Signed-off-by: Florian Fainelli --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index b936febc315a..2194960d5855 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1113,6 +1113,8 @@ int i40e_setup_tx_descriptors(struct i40e_ring *tx_ring) if (!tx_ring->tx_bi) goto err; + u64_stats_init(&tx_ring->syncp); + /* round up to nearest 4K */ tx_ring->size = tx_ring->count * sizeof(struct i40e_tx_desc); /* add u32 for head writeback, align after this takes care of -- 2.9.3