netdev - RE: [PATCH v9 net-next 5/8] net: ena: Add debugfs support to the ENA driver

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Message-ID: <8b4dc75950b24bd6a98cb26661533f70@amazon.com>
Date: Thu, 22 May 2025 05:24:10 +0000
From: "Arinzon, David" <darinzon@...zon.com>
To: Andrew Lunn <andrew@...n.ch>
CC: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, Eric Dumazet
	<edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Simon Horman
	<horms@...nel.org>, Richard Cochran <richardcochran@...il.com>, "Woodhouse,
 David" <dwmw@...zon.co.uk>, "Machulsky, Zorik" <zorik@...zon.com>,
	"Matushevsky, Alexander" <matua@...zon.com>, "Bshara, Saeed"
	<saeedb@...zon.com>, "Wilson, Matt" <msw@...zon.com>, "Liguori, Anthony"
	<aliguori@...zon.com>, "Bshara, Nafea" <nafea@...zon.com>, "Schmeilin,
 Evgeny" <evgenys@...zon.com>, "Belgazal, Netanel" <netanel@...zon.com>,
	"Saidi, Ali" <alisaidi@...zon.com>, "Herrenschmidt, Benjamin"
	<benh@...zon.com>, "Kiyanovski, Arthur" <akiyano@...zon.com>, "Dagan, Noam"
	<ndagan@...zon.com>, "Bernstein, Amit" <amitbern@...zon.com>, "Allen, Neil"
	<shayagr@...zon.com>, "Ostrovsky, Evgeny" <evostrov@...zon.com>, "Tabachnik,
 Ofir" <ofirt@...zon.com>, "Machnikowski, Maciek" <maciek@...hnikowski.net>,
	Rahul Rameshbabu <rrameshbabu@...dia.com>, Gal Pressman <gal@...dia.com>,
	Vadim Fedorenko <vadim.fedorenko@...ux.dev>, Leon Romanovsky
	<leon@...nel.org>
Subject: RE: [PATCH v9 net-next 5/8] net: ena: Add debugfs support to the ENA driver

> > +void ena_debugfs_init(struct net_device *dev) {
> > +     struct ena_adapter *adapter = netdev_priv(dev);
> > +
> > +     adapter->debugfs_base =
> > +             debugfs_create_dir(dev_name(&adapter->pdev->dev), NULL);
> > +     if (IS_ERR(adapter->debugfs_base))
> > +             netdev_err(dev, "Failed to create debugfs dir\n");
> 
> Don't check return codes from debugfs_ calls. It does not matter if it fails, it is
> just debug, and all debugfs_ calls are happy to take a NULL pointer,
> ERR_PTR() etc.
> 
>         Andrew

Thank you for the feedback.
We were looking to get a failure indication and not continue creating the rest of the nodes (patch 6/8).
Will make the changes in the patches and send a v10.

David