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Date: Mon, 10 Nov 2014 15:28:06 +0100
From: Giuseppe CAVALLARO <peppe.cavallaro@...com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
<netdev@...r.kernel.org>,
Kweh Hock Leong <hock.leong.kweh@...el.com>,
"David S . Miller" <davem@...emloft.net>,
Vince Bridgers <vbridgers2013@...il.com>
Subject: Re: [PATCH] stmmac: split to core library and probe drivers
Hi Andy
On 11/10/2014 11:38 AM, Andy Shevchenko wrote:
> Instead of registering the platform and PCI drivers in one module let's move
> necessary bits to where it belongs. During this procedure we convert the module
> registration part to use module_*_driver() macros which makes code simplier.
>
>>>From now on the driver consists three parts: core library, PCI, and platform
> drivers.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
patch looks fine and net-next.
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
> ---
> drivers/net/ethernet/stmicro/stmmac/Kconfig | 4 +-
> drivers/net/ethernet/stmicro/stmmac/Makefile | 15 +++---
> drivers/net/ethernet/stmicro/stmmac/stmmac.h | 61 ----------------------
> drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 36 ++-----------
> drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 4 +-
> .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 13 ++---
> 6 files changed, 25 insertions(+), 108 deletions(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> index 33b85ba..7d3af19 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> @@ -14,7 +14,7 @@ config STMMAC_ETH
> if STMMAC_ETH
>
> config STMMAC_PLATFORM
> - bool "STMMAC Platform bus support"
> + tristate "STMMAC Platform bus support"
> depends on STMMAC_ETH
> default y
> ---help---
> @@ -27,7 +27,7 @@ config STMMAC_PLATFORM
> If unsure, say N.
>
> config STMMAC_PCI
> - bool "STMMAC PCI bus support"
> + tristate "STMMAC PCI bus support"
> depends on STMMAC_ETH && PCI
> ---help---
> This is to select the Synopsys DWMAC available on PCI devices,
> diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
> index 034da70..ac4d562 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/Makefile
> +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
> @@ -1,9 +1,12 @@
> obj-$(CONFIG_STMMAC_ETH) += stmmac.o
> -stmmac-$(CONFIG_STMMAC_PCI) += stmmac_pci.o
> -stmmac-$(CONFIG_STMMAC_PLATFORM) += stmmac_platform.o dwmac-meson.o \
> - dwmac-sunxi.o dwmac-sti.o \
> - dwmac-socfpga.o
> stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o \
> - chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o \
> - dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o \
> + chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o \
> + dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o \
> mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o $(stmmac-y)
> +
> +obj-$(CONFIG_STMMAC_PLATFORM) += stmmac-platform.o
> +stmmac-platform-objs:= stmmac_platform.o dwmac-meson.o dwmac-sunxi.o \
> + dwmac-sti.o dwmac-socfpga.o
> +
> +obj-$(CONFIG_STMMAC_PCI) += stmmac-pci.o
> +stmmac-pci-objs:= stmmac_pci.o
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
> index bd75ee8..c0a3919 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
> @@ -134,65 +134,4 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
> void stmmac_disable_eee_mode(struct stmmac_priv *priv);
> bool stmmac_eee_init(struct stmmac_priv *priv);
>
> -#ifdef CONFIG_STMMAC_PLATFORM
> -extern struct platform_driver stmmac_pltfr_driver;
> -
> -static inline int stmmac_register_platform(void)
> -{
> - int err;
> -
> - err = platform_driver_register(&stmmac_pltfr_driver);
> - if (err)
> - pr_err("stmmac: failed to register the platform driver\n");
> -
> - return err;
> -}
> -
> -static inline void stmmac_unregister_platform(void)
> -{
> - platform_driver_unregister(&stmmac_pltfr_driver);
> -}
> -#else
> -static inline int stmmac_register_platform(void)
> -{
> - pr_debug("stmmac: do not register the platf driver\n");
> -
> - return 0;
> -}
> -
> -static inline void stmmac_unregister_platform(void)
> -{
> -}
> -#endif /* CONFIG_STMMAC_PLATFORM */
> -
> -#ifdef CONFIG_STMMAC_PCI
> -extern struct pci_driver stmmac_pci_driver;
> -static inline int stmmac_register_pci(void)
> -{
> - int err;
> -
> - err = pci_register_driver(&stmmac_pci_driver);
> - if (err)
> - pr_err("stmmac: failed to register the PCI driver\n");
> -
> - return err;
> -}
> -
> -static inline void stmmac_unregister_pci(void)
> -{
> - pci_unregister_driver(&stmmac_pci_driver);
> -}
> -#else
> -static inline int stmmac_register_pci(void)
> -{
> - pr_debug("stmmac: do not register the PCI driver\n");
> -
> - return 0;
> -}
> -
> -static inline void stmmac_unregister_pci(void)
> -{
> -}
> -#endif /* CONFIG_STMMAC_PCI */
> -
> #endif /* __STMMAC_H__ */
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> index 53db11b..0f1c146 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> @@ -2885,6 +2885,7 @@ error_clk_get:
>
> return ERR_PTR(ret);
> }
> +EXPORT_SYMBOL_GPL(stmmac_dvr_probe);
>
> /**
> * stmmac_dvr_remove
> @@ -2914,8 +2915,8 @@ int stmmac_dvr_remove(struct net_device *ndev)
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(stmmac_dvr_remove);
>
> -#ifdef CONFIG_PM
> int stmmac_suspend(struct net_device *ndev)
> {
> struct stmmac_priv *priv = netdev_priv(ndev);
> @@ -2957,6 +2958,7 @@ int stmmac_suspend(struct net_device *ndev)
> priv->oldduplex = -1;
> return 0;
> }
> +EXPORT_SYMBOL_GPL(stmmac_suspend);
>
> int stmmac_resume(struct net_device *ndev)
> {
> @@ -3003,37 +3005,7 @@ int stmmac_resume(struct net_device *ndev)
>
> return 0;
> }
> -#endif /* CONFIG_PM */
> -
> -/* Driver can be configured w/ and w/ both PCI and Platf drivers
> - * depending on the configuration selected.
> - */
> -static int __init stmmac_init(void)
> -{
> - int ret;
> -
> - ret = stmmac_register_platform();
> - if (ret)
> - goto err;
> - ret = stmmac_register_pci();
> - if (ret)
> - goto err_pci;
> - return 0;
> -err_pci:
> - stmmac_unregister_platform();
> -err:
> - pr_err("stmmac: driver registration failed\n");
> - return ret;
> -}
> -
> -static void __exit stmmac_exit(void)
> -{
> - stmmac_unregister_platform();
> - stmmac_unregister_pci();
> -}
> -
> -module_init(stmmac_init);
> -module_exit(stmmac_exit);
> +EXPORT_SYMBOL_GPL(stmmac_resume);
>
> #ifndef MODULE
> static int __init stmmac_cmdline_opt(char *str)
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
> index 5084699..77a6d68 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
> @@ -158,7 +158,7 @@ static const struct pci_device_id stmmac_id_table[] = {
>
> MODULE_DEVICE_TABLE(pci, stmmac_id_table);
>
> -struct pci_driver stmmac_pci_driver = {
> +static struct pci_driver stmmac_pci_driver = {
> .name = STMMAC_RESOURCE_NAME,
> .id_table = stmmac_id_table,
> .probe = stmmac_pci_probe,
> @@ -168,6 +168,8 @@ struct pci_driver stmmac_pci_driver = {
> },
> };
>
> +module_pci_driver(stmmac_pci_driver);
> +
> MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet PCI driver");
> MODULE_AUTHOR("Rayagond Kokatanur <rayagond.kokatanur@...avyalabs.com>");
> MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@...com>");
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> index 9f18401..e22a960 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> @@ -362,7 +362,7 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
> return ret;
> }
>
> -#ifdef CONFIG_PM
> +#ifdef CONFIG_PM_SLEEP
> static int stmmac_pltfr_suspend(struct device *dev)
> {
> int ret;
> @@ -388,13 +388,12 @@ static int stmmac_pltfr_resume(struct device *dev)
>
> return stmmac_resume(ndev);
> }
> -
> -#endif /* CONFIG_PM */
> +#endif /* CONFIG_PM_SLEEP */
>
> static SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops,
> - stmmac_pltfr_suspend, stmmac_pltfr_resume);
> + stmmac_pltfr_suspend, stmmac_pltfr_resume);
>
> -struct platform_driver stmmac_pltfr_driver = {
> +static struct platform_driver stmmac_pltfr_driver = {
> .probe = stmmac_pltfr_probe,
> .remove = stmmac_pltfr_remove,
> .driver = {
> @@ -402,9 +401,11 @@ struct platform_driver stmmac_pltfr_driver = {
> .owner = THIS_MODULE,
> .pm = &stmmac_pltfr_pm_ops,
> .of_match_table = of_match_ptr(stmmac_dt_ids),
> - },
> + },
> };
>
> +module_platform_driver(stmmac_pltfr_driver);
> +
> MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet PLATFORM driver");
> MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@...com>");
> MODULE_LICENSE("GPL");
>
--
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