From: Jakub Kicinski <kuba@kernel.org>
To: FUJITA Tomonori <fujita.tomonori@gmail.com>
Cc: netdev@vger.kernel.org, andrew@lunn.ch, horms@kernel.org,
jiri@resnulli.us, pabeni@redhat.com, linux@armlinux.org.uk,
hfdevel@gmx.net, naveenm@marvell.com, jdamato@fastly.com
Subject: Re: [PATCH net-next v11 5/7] net: tn40xx: add basic Rx handling
Date: Tue, 18 Jun 2024 18:52:10 -0700 [thread overview]
Message-ID: <20240618185210.3a7a5715@kernel.org> (raw)
In-Reply-To: <20240618051608.95208-6-fujita.tomonori@gmail.com>
On Tue, 18 Jun 2024 14:16:06 +0900 FUJITA Tomonori wrote:
> + skb = napi_build_skb(page_address(dm->page), PAGE_SIZE);
> + if (!skb) {
> + netdev_err(priv->ndev, "napi_build_skb() failed\n");
memory pressure happens a lot in real world scenarios,
allocations will fail, and you don't want to spam the logs
in such cases.
In general prints on the datapath can easily turn into a DoS vector.
You're better off using appropriate statistics (here struct
netdev_queue_stats_rx :: alloc_fail)
next prev parent reply other threads:[~2024-06-19 1:52 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-18 5:16 [PATCH net-next v11 0/7] add ethernet driver for Tehuti Networks TN40xx chips FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 1/7] PCI: Add Edimax Vendor ID to pci_ids.h FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 2/7] net: tn40xx: add pci driver for Tehuti Networks TN40xx chips FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 3/7] net: tn40xx: add register defines FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 4/7] net: tn40xx: add basic Tx handling FUJITA Tomonori
2024-06-19 1:50 ` Jakub Kicinski
2024-06-19 3:44 ` FUJITA Tomonori
2024-06-19 14:55 ` Jakub Kicinski
2024-06-19 23:49 ` FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 5/7] net: tn40xx: add basic Rx handling FUJITA Tomonori
2024-06-19 1:52 ` Jakub Kicinski [this message]
2024-06-19 4:03 ` FUJITA Tomonori
2024-06-19 1:52 ` Jakub Kicinski
2024-06-19 6:21 ` FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 6/7] net: tn40xx: add mdio bus support FUJITA Tomonori
2024-06-18 5:16 ` [PATCH net-next v11 7/7] net: tn40xx: add phylink support FUJITA Tomonori
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