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[2a03:2880:30ff:76::face:b00c]) by smtp.gmail.com with ESMTPSA id y16-20020a05600c365000b00412656ba919sm5599122wmq.20.2024.02.29.09.04.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Feb 2024 09:04:53 -0800 (PST) From: Breno Leitao To: kuba@kernel.org, davem@davemloft.net, pabeni@redhat.com, edumazet@google.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, horms@kernel.org, dsahern@kernel.org Subject: [PATCH net-next 1/2] net: bareudp: Do not allocate stats in the driver Date: Thu, 29 Feb 2024 09:04:23 -0800 Message-ID: <20240229170425.3895238-1-leitao@debian.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and convert veth & vrf"), stats allocation could be done on net core instead of this driver. With this new approach, the driver doesn't have to bother with error handling (allocation failure checking, making sure free happens in the right spot, etc). This is core responsibility now. Remove the allocation in the bareudp driver and leverage the network core allocation. Signed-off-by: Breno Leitao Reviewed-by: Simon Horman --- drivers/net/bareudp.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c index 4db6122c9b43..27408f0b93d6 100644 --- a/drivers/net/bareudp.c +++ b/drivers/net/bareudp.c @@ -194,15 +194,10 @@ static int bareudp_init(struct net_device *dev) struct bareudp_dev *bareudp = netdev_priv(dev); int err; - dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!dev->tstats) - return -ENOMEM; - err = gro_cells_init(&bareudp->gro_cells, dev); - if (err) { - free_percpu(dev->tstats); + if (err) return err; - } + return 0; } @@ -211,7 +206,6 @@ static void bareudp_uninit(struct net_device *dev) struct bareudp_dev *bareudp = netdev_priv(dev); gro_cells_destroy(&bareudp->gro_cells); - free_percpu(dev->tstats); } static struct socket *bareudp_create_sock(struct net *net, __be16 port) @@ -567,6 +561,7 @@ static void bareudp_setup(struct net_device *dev) netif_keep_dst(dev); dev->priv_flags |= IFF_NO_QUEUE; dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; + dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; } static int bareudp_validate(struct nlattr *tb[], struct nlattr *data[],