On Wed, Jun 07, 2017 at 08:48:06AM -0700, Florian Fainelli wrote: > On 06/07/2017 01:38 AM, Antoine Tenart wrote: > > This patch adds the xMDIO interface support in the mvmdio driver. This > > interface is used in Ethernet controllers on Marvell 370, 7k and 8k (as > > of now). The xSMI interface supported by this driver complies with the > > IEEE 802.3 clause 45 (while the SMI interface complies with the clause > > 22). The xSMI interface is used by 10GbE devices. > > > > Signed-off-by: Antoine Tenart <antoine.ten...@free-electrons.com> > > --- > > > + if (of_device_is_compatible(np, "marvell,orion-mdio")) { > > + ops->is_done = smi_is_done; > > + ops->is_read_valid = smi_is_read_valid; > > + ops->start_read = smi_start_read_op; > > + ops->read = smi_read_op; > > + ops->write = smi_write_op; > > + > > + dev->poll_interval_min = MVMDIO_SMI_POLL_INTERVAL_MIN; > > + dev->poll_interval_max = MVMDIO_SMI_POLL_INTERVAL_MAX; > > + } else if (of_device_is_compatible(np, "marvell,xmdio")) { > > + ops->is_done = xsmi_is_done; > > + ops->is_read_valid = xsmi_is_read_valid; > > + ops->start_read = xsmi_start_read_op; > > + ops->read = xsmi_read_op; > > + ops->write = xsmi_write_op; > > + > > + dev->poll_interval_min = MVMDIO_XSMI_POLL_INTERVAL_MIN; > > + dev->poll_interval_max = MVMDIO_XSMI_POLL_INTERVAL_MAX; > > + } else { > > + return -EINVAL; > > + } > > Instead of doing this, you could have the ops structure declared e.g: a > static global variables in the driver and reference them from the > of_device_id .data field, something like: > > static struct orion_mdio_ops mdio_ops = { > ... > };
In this case, don't forget the "const" for static structures containing only function pointers (so that the function pointers can't be exploited.) -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.