From d35bbfaa4a4fe17abccf54c67a1861a362ed0b52 Mon Sep 17 00:00:00 2001 From: Andrey Shvetsov Date: Fri, 12 May 2017 12:59:54 +0200 Subject: [PATCH] staging: most: remove dependency on networking-aim The modules hdm-usb and hdm-dim2 depend on the module aim-network, because they use the function most_deliver_netinfo that it exports. To remove this dependency, this patch replaces the call of the function most_deliver_netinfo with the call of the function that is the parameter 'on_netinfo' of the function request_netinfo. Signed-off-by: Andrey Shvetsov Signed-off-by: Christian Gromm Signed-off-by: Greg Kroah-Hartman --- drivers/staging/most/aim-network/networking.c | 15 +++++++------ drivers/staging/most/aim-network/networking.h | 21 ------------------- drivers/staging/most/hdm-dim2/Kconfig | 1 - drivers/staging/most/hdm-dim2/dim2_hdm.c | 18 ++++++++++++---- drivers/staging/most/hdm-usb/Kconfig | 2 +- drivers/staging/most/hdm-usb/hdm_usb.c | 15 ++++++++++--- drivers/staging/most/mostcore/mostcore.h | 7 ++++++- 7 files changed, 42 insertions(+), 37 deletions(-) delete mode 100644 drivers/staging/most/aim-network/networking.h diff --git a/drivers/staging/most/aim-network/networking.c b/drivers/staging/most/aim-network/networking.c index 03ddbd2459d6..a3009fdfa278 100644 --- a/drivers/staging/most/aim-network/networking.c +++ b/drivers/staging/most/aim-network/networking.c @@ -22,7 +22,6 @@ #include #include #include "mostcore.h" -#include "networking.h" #define MEP_HDR_LEN 8 #define MDP_HDR_LEN 16 @@ -176,6 +175,9 @@ static int most_nd_set_mac_address(struct net_device *dev, void *p) return 0; } +static void on_netinfo(struct most_interface *iface, + unsigned char link_stat, unsigned char *mac_addr); + static int most_nd_open(struct net_device *dev) { struct net_dev_context *nd = dev->ml_priv; @@ -204,7 +206,7 @@ static int most_nd_open(struct net_device *dev) netif_dormant_on(dev); netif_wake_queue(dev); if (nd->iface->request_netinfo) - nd->iface->request_netinfo(nd->iface, nd->tx.ch_id); + nd->iface->request_netinfo(nd->iface, nd->tx.ch_id, on_netinfo); return 0; } @@ -216,6 +218,8 @@ static int most_nd_stop(struct net_device *dev) BUG_ON(nd->dev != dev); netif_stop_queue(dev); + if (nd->iface->request_netinfo) + nd->iface->request_netinfo(nd->iface, nd->tx.ch_id, NULL); most_stop_channel(nd->iface, nd->rx.ch_id, &aim); most_stop_channel(nd->iface, nd->tx.ch_id, &aim); @@ -527,13 +531,13 @@ static void __exit most_net_exit(void) } /** - * most_deliver_netinfo - callback for HDM to be informed about HW's MAC + * on_netinfo - callback for HDM to be informed about HW's MAC * @param iface - most interface instance * @param link_stat - link status * @param mac_addr - MAC address */ -void most_deliver_netinfo(struct most_interface *iface, - unsigned char link_stat, unsigned char *mac_addr) +static void on_netinfo(struct most_interface *iface, + unsigned char link_stat, unsigned char *mac_addr) { struct net_dev_context *nd; struct net_device *dev; @@ -564,7 +568,6 @@ void most_deliver_netinfo(struct most_interface *iface, } } } -EXPORT_SYMBOL(most_deliver_netinfo); module_init(most_net_init); module_exit(most_net_exit); diff --git a/drivers/staging/most/aim-network/networking.h b/drivers/staging/most/aim-network/networking.h deleted file mode 100644 index 6f346d410525..000000000000 --- a/drivers/staging/most/aim-network/networking.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * Networking AIM - Networking Application Interface Module for MostCore - * - * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ -#ifndef _NETWORKING_H_ -#define _NETWORKING_H_ - -#include "mostcore.h" - -void most_deliver_netinfo(struct most_interface *iface, - unsigned char link_stat, unsigned char *mac_addr); - -#endif diff --git a/drivers/staging/most/hdm-dim2/Kconfig b/drivers/staging/most/hdm-dim2/Kconfig index 28a0e1791600..663bfebff674 100644 --- a/drivers/staging/most/hdm-dim2/Kconfig +++ b/drivers/staging/most/hdm-dim2/Kconfig @@ -4,7 +4,6 @@ config HDM_DIM2 tristate "DIM2 HDM" - depends on AIM_NETWORK depends on HAS_IOMEM ---help--- diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c index 902824e728ea..4607d03c577b 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hdm.c +++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c @@ -26,7 +26,6 @@ #include #include -#include #include "dim2_hal.h" #include "dim2_hdm.h" #include "dim2_errors.h" @@ -107,6 +106,8 @@ struct dim2_hdm { unsigned char link_state; int atx_idx; struct medialb_bus bus; + void (*on_netinfo)(struct most_interface *, + unsigned char, unsigned char *); }; #define iface_to_hdm(iface) container_of(iface, struct dim2_hdm, most_iface) @@ -287,8 +288,11 @@ static int deliver_netinfo_thread(void *data) if (dev->deliver_netinfo) { dev->deliver_netinfo--; - most_deliver_netinfo(&dev->most_iface, dev->link_state, - dev->mac_addrs); + if (dev->on_netinfo) { + dev->on_netinfo(&dev->most_iface, + dev->link_state, + dev->mac_addrs); + } } } @@ -654,12 +658,18 @@ static int enqueue(struct most_interface *most_iface, int ch_idx, * Send a command to INIC which triggers retrieving of network info by means of * "Message exchange over MDP/MEP". Return 0 on success, negative on failure. */ -static void request_netinfo(struct most_interface *most_iface, int ch_idx) +static void request_netinfo(struct most_interface *most_iface, int ch_idx, + void (*on_netinfo)(struct most_interface *, + unsigned char, unsigned char *)) { struct dim2_hdm *dev = iface_to_hdm(most_iface); struct mbo *mbo; u8 *data; + dev->on_netinfo = on_netinfo; + if (!on_netinfo) + return; + if (dev->atx_idx < 0) { pr_err("Async Tx Not initialized\n"); return; diff --git a/drivers/staging/most/hdm-usb/Kconfig b/drivers/staging/most/hdm-usb/Kconfig index ec1546312ee6..487f1f34776c 100644 --- a/drivers/staging/most/hdm-usb/Kconfig +++ b/drivers/staging/most/hdm-usb/Kconfig @@ -5,7 +5,7 @@ config HDM_USB tristate "USB HDM" depends on USB && NET - select AIM_NETWORK + ---help--- Say Y here if you want to connect via USB to network tranceiver. This device driver depends on the networking AIM. diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c index a95b5910d9fc..d0f68cb3c173 100644 --- a/drivers/staging/most/hdm-usb/hdm_usb.c +++ b/drivers/staging/most/hdm-usb/hdm_usb.c @@ -30,7 +30,6 @@ #include #include #include "mostcore.h" -#include "networking.h" #define USB_MTU 512 #define NO_ISOCHRONOUS_URB 0 @@ -126,6 +125,8 @@ struct most_dev { struct mutex io_mutex; struct timer_list link_stat_timer; struct work_struct poll_work_obj; + void (*on_netinfo)(struct most_interface *, unsigned char, + unsigned char *); }; #define to_mdev(d) container_of(d, struct most_dev, iface) @@ -719,12 +720,19 @@ exit: * polls for the NI state of the INIC every 2 seconds. * */ -static void hdm_request_netinfo(struct most_interface *iface, int channel) +static void hdm_request_netinfo(struct most_interface *iface, int channel, + void (*on_netinfo)(struct most_interface *, + unsigned char, + unsigned char *)) { struct most_dev *mdev; BUG_ON(!iface); mdev = to_mdev(iface); + mdev->on_netinfo = on_netinfo; + if (!on_netinfo) + return; + mdev->link_stat_timer.expires = jiffies + HZ; mod_timer(&mdev->link_stat_timer, mdev->link_stat_timer.expires); } @@ -786,7 +794,8 @@ static void wq_netinfo(struct work_struct *wq_obj) hw_addr[4] = lo >> 8; hw_addr[5] = lo; - most_deliver_netinfo(&mdev->iface, link, hw_addr); + if (mdev->on_netinfo) + mdev->on_netinfo(&mdev->iface, link, hw_addr); } /** diff --git a/drivers/staging/most/mostcore/mostcore.h b/drivers/staging/most/mostcore/mostcore.h index 5f8339bd046f..915e5159d1eb 100644 --- a/drivers/staging/most/mostcore/mostcore.h +++ b/drivers/staging/most/mostcore/mostcore.h @@ -233,6 +233,8 @@ struct mbo { * The callback returns a negative value on error, otherwise 0. * @request_netinfo: triggers retrieving of network info from the HDM by * means of "Message exchange over MDP/MEP" + * The call of the function request_netinfo with the parameter on_netinfo as + * NULL prohibits use of the previously obtained function pointer. * @priv Private field used by mostcore to store context information. */ struct most_interface { @@ -246,7 +248,10 @@ struct most_interface { int (*enqueue)(struct most_interface *iface, int channel_idx, struct mbo *mbo); int (*poison_channel)(struct most_interface *iface, int channel_idx); - void (*request_netinfo)(struct most_interface *iface, int channel_idx); + void (*request_netinfo)(struct most_interface *iface, int channel_idx, + void (*on_netinfo)(struct most_interface *iface, + unsigned char link_stat, + unsigned char *mac_addr)); void *priv; }; -- 2.39.2