Re: [PATCH net-next 3/5] devlink: Allow set specific ops callbacks dynamically

From: Leon Romanovsky <leon@kernel.org>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Andrew Lunn <andrew@lunn.ch>, Ariel Elior <aelior@marvell.com>,
	Bin Luo <luobin9@huawei.com>,
	Claudiu Manoil <claudiu.manoil@nxp.com>,
	Coiby Xu <coiby.xu@gmail.com>,
	Derek Chickles <dchickles@marvell.com>,
	drivers@pensando.io, Eric Dumazet <eric.dumazet@gmail.com>,
	Felix Manlunas <fmanlunas@marvell.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Geetha sowjanya <gakula@marvell.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	GR-everest-linux-l2@marvell.com, GR-Linux-NIC-Dev@marvell.com,
	hariprasad <hkelam@marvell.com>, Ido Schimmel <idosch@nvidia.com>,
	intel-wired-lan@lists.osuosl.org,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	Jerin Jacob <jerinj@marvell.com>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Jiri Pirko <jiri@nvidia.com>,
	Jonathan Lemon <jonathan.lemon@gmail.com>,
	Linu Cherian <lcherian@marvell.com>,
	linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-rdma@vger.kernel.org, linux-staging@lists.linux.dev,
	Manish Chopra <manishc@marvell.com>,
	Michael Chan <michael.chan@broadcom.com>,
	Moshe Shemesh <moshe@nvidia.com>,
	netdev@vger.kernel.org, oss-drivers@corigine.com,
	Richard Cochran <richardcochran@gmail.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Salil Mehta <salil.mehta@huawei.com>,
	Satanand Burla <sburla@marvell.com>,
	Shannon Nelson <snelson@pensando.io>,
	Shay Drory <shayd@nvidia.com>,
	Simon Horman <simon.horman@corigine.com>,
	Subbaraya Sundeep <sbhatta@marvell.com>,
	Sunil Goutham <sgoutham@marvell.com>,
	Taras Chornyi <tchornyi@marvell.com>,
	Tariq Toukan <tariqt@nvidia.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	UNGLinuxDriver@microchip.com, Vadym Kochan <vkochan@marvell.com>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Vladimir Oltean <vladimir.oltean@nxp.com>,
	Yisen Zhuang <yisen.zhuang@huawei.com>
Subject: Re: [PATCH net-next 3/5] devlink: Allow set specific ops callbacks dynamically
Date: Wed, 29 Sep 2021 13:43:06 +0300	[thread overview]
Message-ID: <YVRDOijPHji2vg82@unreal> (raw)
In-Reply-To: <20210929103823.GK2048@kadam>

On Wed, Sep 29, 2021 at 01:38:23PM +0300, Dan Carpenter wrote:
> On Wed, Sep 29, 2021 at 01:16:37PM +0300, Leon Romanovsky wrote:
> > +void devlink_set_ops(struct devlink *devlink, struct devlink_ops *ops)
> > +{
> > +	struct devlink_ops *dev_ops = devlink->ops;
> > +
> > +	WARN_ON(!devlink_reload_actions_valid(ops));
> > +
> > +#define SET_DEVICE_OP(ptr, name)                                               \
> > +	do {                                                                   \
> > +		if (ops->name)                                                 \
> 
> Could you make "ops" a parameter of the macro instead of hard coding it?

Sure

> 
> regards,
> dan carpenter
> 
> > +			if (!((ptr)->name))				       \
> > +				(ptr)->name = ops->name;                       \
> > +	} while (0)
> > +
> > +	/* Keep sorted */
> > +	SET_DEVICE_OP(dev_ops, reload_actions);
> > +	SET_DEVICE_OP(dev_ops, reload_down);
> > +	SET_DEVICE_OP(dev_ops, reload_limits);
> > +	SET_DEVICE_OP(dev_ops, reload_up);
> > +
> > +#undef SET_DEVICE_OP
> > +}
> > +EXPORT_SYMBOL_GPL(devlink_set_ops);
>