linux-kernel - Re: [PATCH net] i40e: Look up MAC address in Open Firmware or IDPROM

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Message-ID: <CAHp75VcmgsAjgqt6+JVMB6uvbbJamoBnLyEU=YNCRp=s2fAW1A@mail.gmail.com>
Date:	Fri, 30 Oct 2015 02:14:03 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Sowmini Varadhan <sowmini.varadhan@...cle.com>
Cc:	intel-wired-lan@...ts.osuosl.org, netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
	shannon.nelson@...el.com, carolyn.wyborny@...el.com,
	donald.c.skidmore@...el.com, matthew.vick@...el.com,
	john.ronciak@...el.com, mitch.a.williams@...el.com,
	martin.petersen@...cle.com
Subject: Re: [PATCH net] i40e: Look up MAC address in Open Firmware or IDPROM

On Fri, Oct 30, 2015 at 1:34 AM, Sowmini Varadhan
<sowmini.varadhan@...cle.com> wrote:
>
>
> This is the i40e equivalent of commit c762dff24c06 ("ixgbe: Look up MAC
> address in Open Firmware or IDPROM").
>
> As with that fix, attempt to look up the MAC address in Open Firmware
> on systems that uspport it, and use IDPROM on SPARC if no OF address
> is found.

[]

> +#include <linux/etherdevice.h>

> +#ifdef CONFIG_OF

This seems redundant.

> +#include <linux/of_net.h>
> +#endif
> +#include <linux/pci.h>
> +#include "i40e.h"
> +
>  #include "i40e_type.h"
>  #include "i40e_adminq.h"
>  #include "i40e_prototype.h"
>  #include "i40e_virtchnl.h"
>
> +#ifdef CONFIG_SPARC
> +#include <asm/idprom.h>
> +#include <asm/prom.h>
> +#endif

Why not to put before local headers?

> +static int i40e_get_platform_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
> +{
> +#ifdef CONFIG_OF

Does the following has no stubs?

> +       struct i40e_pf *pf = hw->back;
> +       struct device_node *dp = pci_device_to_OF_node(pf->pdev);
> +       const unsigned char *addr;
> +
> +       addr = of_get_mac_address(dp);

^^^

> +       if (addr) {
> +               ether_addr_copy(mac_addr, addr);
> +               return 0;
> +       }
> +#endif /* CONFIG_OF */
> +
> +#ifdef CONFIG_SPARC
> +       ether_addr_copy(mac_addr, idprom->id_ethaddr);
> +       return 0;
> +#endif /* CONFIG_SPARC */
> +       return 1;
> +}
> +
>  /**
>   * i40e_get_mac_addr - get MAC address
>   * @hw: pointer to the HW structure
> @@ -1021,6 +1054,9 @@ i40e_status i40e_get_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
>         i40e_status status;
>         u16 flags = 0;
>
> +       if (!i40e_get_platform_mac_addr(hw, mac_addr))
> +               return I40E_SUCCESS;


-- 
With Best Regards,
Andy Shevchenko
--
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