From mboxrd@z Thu Jan 1 00:00:00 1970 From: Giuseppe CAVALLARO Subject: [PATCH (net.git)] stmmac: fix driver built w/ w/o both pci and platf modules Date: Thu, 7 Jun 2012 11:53:23 +0200 Message-ID: <1339062803-24273-1-git-send-email-peppe.cavallaro@st.com> Cc: wfg@linux.intel.com, davem@davemloft.net, Giuseppe Cavallaro To: netdev@vger.kernel.org Return-path: Received: from eu1sys200aog108.obsmtp.com ([207.126.144.125]:44817 "EHLO eu1sys200aog108.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752777Ab2FGJxz (ORCPT ); Thu, 7 Jun 2012 05:53:55 -0400 Sender: netdev-owner@vger.kernel.org List-ID: The commit ba27ec66ffeb78cbf fixes the Kconfig of the driver when built as module allowing to select/unselect the PCI and Platform modules that are not anymore mutually exclusive. This patch fixes and guarantees that the driver builds on all the platforms w/ w/o PCI and when select/unselect the two stmmac supports. In case of there are some problems on both the configuration and the pci/pltf registration the module_init will fail. Reported-by: Fengguang Wu Signed-off-by: Giuseppe Cavallaro --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 60 ++++++++++++++++++++- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 23 +++++---- 2 files changed, 71 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 6d07ba2..e8afe7b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -26,6 +26,7 @@ #include #include #include +#include #include "common.h" #ifdef CONFIG_STMMAC_TIMER #include "stmmac_timer.h" @@ -95,8 +96,6 @@ extern int stmmac_mdio_register(struct net_device *ndev); extern void stmmac_set_ethtool_ops(struct net_device *netdev); extern const struct stmmac_desc_ops enh_desc_ops; extern const struct stmmac_desc_ops ndesc_ops; -extern struct pci_driver stmmac_pci_driver; -extern struct platform_driver stmmac_pltfr_driver; int stmmac_freeze(struct net_device *ndev); int stmmac_restore(struct net_device *ndev); int stmmac_resume(struct net_device *ndev); @@ -144,3 +143,60 @@ static inline int stmmac_clk_get(struct stmmac_priv *priv) return 0; } #endif /* CONFIG_HAVE_CLK */ + + +#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_register(&stmmac_pltfr_driver); +} +#else +static inline int stmmac_register_platform(void) +{ + pr_err("stmmac: do not register the platf driver\n"); + + return -EINVAL; +} +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_err("stmmac: do not register the PCI driver\n"); + + return -EINVAL; +} +static inline void stmmac_unregister_pci(void) +{ +} +#endif /* CONFIG_STMMAC_PCI */ diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 3638569..51b3b68 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -42,7 +42,6 @@ #include #include #include -#include #ifdef CONFIG_STMMAC_DEBUG_FS #include #include @@ -2094,25 +2093,29 @@ int stmmac_restore(struct net_device *ndev) } #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 err = 0; + int err_plt = 0; + int err_pci = 0; - err = platform_driver_register(&stmmac_pltfr_driver); + err_plt = stmmac_register_platform(); + err_pci = stmmac_register_pci(); - if (!err) { - err = pci_register_driver(&stmmac_pci_driver); - if (err) - platform_driver_unregister(&stmmac_pltfr_driver); + if ((err_pci) && (err_plt)) { + pr_err("stmmac: driver registration failed\n"); + return -EINVAL; } - return err; + return 0; } static void __exit stmmac_exit(void) { - pci_unregister_driver(&stmmac_pci_driver); - platform_driver_unregister(&stmmac_pltfr_driver); + stmmac_unregister_platform(); + stmmac_unregister_pci(); } module_init(stmmac_init); -- 1.7.4.4