netdev - RE: [net-next v2 2/2] mlx5/core: Support max_io

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Date: Tue, 2 Apr 2024 15:36:43 +0000
From: Parav Pandit <parav@...dia.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "davem@...emloft.net"
	<davem@...emloft.net>, "edumazet@...gle.com" <edumazet@...gle.com>,
	"pabeni@...hat.com" <pabeni@...hat.com>, "corbet@....net" <corbet@....net>,
	"kalesh-anakkur.purayil@...adcom.com" <kalesh-anakkur.purayil@...adcom.com>,
	Saeed Mahameed <saeedm@...dia.com>, "leon@...nel.org" <leon@...nel.org>,
	"jiri@...nulli.us" <jiri@...nulli.us>, Shay Drori <shayd@...dia.com>, Dan
 Jurgens <danielj@...dia.com>, Dima Chumak <dchumak@...dia.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>, Jiri Pirko
	<jiri@...dia.com>
Subject: RE: [net-next v2 2/2] mlx5/core: Support max_io_eqs for a function


> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Tuesday, April 2, 2024 8:49 PM
> 
> On Tue, 2 Apr 2024 14:25:49 +0300 Parav Pandit wrote:
> > +	query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
> > +	if (!query_ctx)
> > +		return -ENOMEM;
> > +
> > +	mutex_lock(&esw->state_lock);
> > +	err = mlx5_vport_get_other_func_cap(esw->dev, vport_num,
> query_ctx,
> > +					    MLX5_CAP_GENERAL);
> > +	if (err) {
> > +		NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
> > +		goto out;
> 
> missing unlock
> 
> And before someone suggests we need guards, even make coccicheck
> catches this...
>
I am sorry about it.
I didn't wait for the coccicheck to finish in internal build.
Fixing it.
 
> > +	}
> > +
> > +	hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx,
> capability);
> > +	MLX5_SET(cmd_hca_cap, hca_caps, max_num_eqs, max_eqs);
> > +
> > +	err = mlx5_vport_set_other_func_cap(esw->dev, hca_caps,
> vport_num,
> > +
> MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE);
> > +	mutex_unlock(&esw->state_lock);
> > +	if (err)
> > +		NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA caps");
> > +
> > +out:
> > +	kfree(query_ctx);
> > +	return err;
> --
> pw-bot: cr