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Message-ID: <202511051756.m53LZeZi-lkp@intel.com>
Date: Wed, 5 Nov 2025 17:13:03 +0800
From: kernel test robot <lkp@...el.com>
To: Ian Abbott <abbotti@....co.uk>, linux-fpga@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Moritz Fischer <mdf@...nel.org>,
Xu Yilun <yilun.xu@...el.com>, Tom Rix <trix@...hat.com>,
linux-kernel@...r.kernel.org, Ian Abbott <abbotti@....co.uk>
Subject: Re: [PATCH 2/4] fpga: bridge: Add dummy definitions of API functions
Hi Ian,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.18-rc4 next-20251105]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ian-Abbott/fpga-altera-pr-ip-Add-dummy-definitions-of-API-functions/20251105-000956
base: linus/master
patch link: https://lore.kernel.org/r/20251104153013.154463-3-abbotti%40mev.co.uk
patch subject: [PATCH 2/4] fpga: bridge: Add dummy definitions of API functions
config: parisc-randconfig-001-20251105 (https://download.01.org/0day-ci/archive/20251105/202511051756.m53LZeZi-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 12.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051756.m53LZeZi-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511051756.m53LZeZi-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/fpga/fpga-bridge.c:29:5: error: redefinition of 'fpga_bridge_enable'
29 | int fpga_bridge_enable(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~~~~
In file included from drivers/fpga/fpga-bridge.c:8:
include/linux/fpga/fpga-bridge.h:112:19: note: previous definition of 'fpga_bridge_enable' with type 'int(struct fpga_bridge *)'
112 | static inline int fpga_bridge_enable(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:47:5: error: redefinition of 'fpga_bridge_disable'
47 | int fpga_bridge_disable(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:117:19: note: previous definition of 'fpga_bridge_disable' with type 'int(struct fpga_bridge *)'
117 | static inline int fpga_bridge_disable(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:91:21: error: redefinition of 'of_fpga_bridge_get'
91 | struct fpga_bridge *of_fpga_bridge_get(struct device_node *np,
| ^~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:97:1: note: previous definition of 'of_fpga_bridge_get' with type 'struct fpga_bridge *(struct device_node *, struct fpga_image_info *)'
97 | of_fpga_bridge_get(struct device_node *node, struct fpga_image_info *info)
| ^~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:123:21: error: redefinition of 'fpga_bridge_get'
123 | struct fpga_bridge *fpga_bridge_get(struct device *dev,
| ^~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:103:1: note: previous definition of 'fpga_bridge_get' with type 'struct fpga_bridge *(struct device *, struct fpga_image_info *)'
103 | fpga_bridge_get(struct device *dev, struct fpga_image_info *info)
| ^~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:147:6: error: redefinition of 'fpga_bridge_put'
147 | void fpga_bridge_put(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:108:20: note: previous definition of 'fpga_bridge_put' with type 'void(struct fpga_bridge *)'
108 | static inline void fpga_bridge_put(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:166:5: error: redefinition of 'fpga_bridges_enable'
166 | int fpga_bridges_enable(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:122:19: note: previous definition of 'fpga_bridges_enable' with type 'int(struct list_head *)'
122 | static inline int fpga_bridges_enable(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:190:5: error: redefinition of 'fpga_bridges_disable'
190 | int fpga_bridges_disable(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:127:19: note: previous definition of 'fpga_bridges_disable' with type 'int(struct list_head *)'
127 | static inline int fpga_bridges_disable(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:213:6: error: redefinition of 'fpga_bridges_put'
213 | void fpga_bridges_put(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:132:20: note: previous definition of 'fpga_bridges_put' with type 'void(struct list_head *)'
132 | static inline void fpga_bridges_put(struct list_head *bridge_list)
| ^~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:239:5: error: redefinition of 'of_fpga_bridge_get_to_list'
239 | int of_fpga_bridge_get_to_list(struct device_node *np,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:143:19: note: previous definition of 'of_fpga_bridge_get_to_list' with type 'int(struct device_node *, struct fpga_image_info *, struct list_head *)'
143 | static inline int of_fpga_bridge_get_to_list(struct device_node *np,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:269:5: error: redefinition of 'fpga_bridge_get_to_list'
269 | int fpga_bridge_get_to_list(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:136:19: note: previous definition of 'fpga_bridge_get_to_list' with type 'int(struct device *, struct fpga_image_info *, struct list_head *)'
136 | static inline int fpga_bridge_get_to_list(struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:332:1: error: redefinition of '__fpga_bridge_register'
332 | __fpga_bridge_register(struct device *parent, const char *name,
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:151:1: note: previous definition of '__fpga_bridge_register' with type 'struct fpga_bridge *(struct device *, const char *, const struct fpga_bridge_ops *, void *, struct module *)'
151 | __fpga_bridge_register(struct device *parent, const char *name,
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/fpga/fpga-bridge.c:403:6: error: redefinition of 'fpga_bridge_unregister'
403 | void fpga_bridge_unregister(struct fpga_bridge *bridge)
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/fpga/fpga-bridge.h:158:20: note: previous definition of 'fpga_bridge_unregister' with type 'void(struct fpga_bridge *)'
158 | static inline void fpga_bridge_unregister(struct fpga_bridge *br)
| ^~~~~~~~~~~~~~~~~~~~~~
vim +/fpga_bridge_enable +29 drivers/fpga/fpga-bridge.c
21aeda950c5f84 Alan Tull 2016-11-01 21
21aeda950c5f84 Alan Tull 2016-11-01 22 /**
21aeda950c5f84 Alan Tull 2016-11-01 23 * fpga_bridge_enable - Enable transactions on the bridge
21aeda950c5f84 Alan Tull 2016-11-01 24 *
21aeda950c5f84 Alan Tull 2016-11-01 25 * @bridge: FPGA bridge
21aeda950c5f84 Alan Tull 2016-11-01 26 *
21aeda950c5f84 Alan Tull 2016-11-01 27 * Return: 0 for success, error code otherwise.
21aeda950c5f84 Alan Tull 2016-11-01 28 */
21aeda950c5f84 Alan Tull 2016-11-01 @29 int fpga_bridge_enable(struct fpga_bridge *bridge)
21aeda950c5f84 Alan Tull 2016-11-01 30 {
21aeda950c5f84 Alan Tull 2016-11-01 31 dev_dbg(&bridge->dev, "enable\n");
21aeda950c5f84 Alan Tull 2016-11-01 32
b1a91ca25f15b6 Marco Pagani 2024-02-01 33 if (bridge->br_ops->enable_set)
21aeda950c5f84 Alan Tull 2016-11-01 34 return bridge->br_ops->enable_set(bridge, 1);
21aeda950c5f84 Alan Tull 2016-11-01 35
21aeda950c5f84 Alan Tull 2016-11-01 36 return 0;
21aeda950c5f84 Alan Tull 2016-11-01 37 }
21aeda950c5f84 Alan Tull 2016-11-01 38 EXPORT_SYMBOL_GPL(fpga_bridge_enable);
21aeda950c5f84 Alan Tull 2016-11-01 39
21aeda950c5f84 Alan Tull 2016-11-01 40 /**
21aeda950c5f84 Alan Tull 2016-11-01 41 * fpga_bridge_disable - Disable transactions on the bridge
21aeda950c5f84 Alan Tull 2016-11-01 42 *
21aeda950c5f84 Alan Tull 2016-11-01 43 * @bridge: FPGA bridge
21aeda950c5f84 Alan Tull 2016-11-01 44 *
21aeda950c5f84 Alan Tull 2016-11-01 45 * Return: 0 for success, error code otherwise.
21aeda950c5f84 Alan Tull 2016-11-01 46 */
21aeda950c5f84 Alan Tull 2016-11-01 @47 int fpga_bridge_disable(struct fpga_bridge *bridge)
21aeda950c5f84 Alan Tull 2016-11-01 48 {
21aeda950c5f84 Alan Tull 2016-11-01 49 dev_dbg(&bridge->dev, "disable\n");
21aeda950c5f84 Alan Tull 2016-11-01 50
b1a91ca25f15b6 Marco Pagani 2024-02-01 51 if (bridge->br_ops->enable_set)
21aeda950c5f84 Alan Tull 2016-11-01 52 return bridge->br_ops->enable_set(bridge, 0);
21aeda950c5f84 Alan Tull 2016-11-01 53
21aeda950c5f84 Alan Tull 2016-11-01 54 return 0;
21aeda950c5f84 Alan Tull 2016-11-01 55 }
21aeda950c5f84 Alan Tull 2016-11-01 56 EXPORT_SYMBOL_GPL(fpga_bridge_disable);
21aeda950c5f84 Alan Tull 2016-11-01 57
1da11f822042eb Marco Pagani 2024-03-22 58 static struct fpga_bridge *__fpga_bridge_get(struct device *bridge_dev,
21aeda950c5f84 Alan Tull 2016-11-01 59 struct fpga_image_info *info)
21aeda950c5f84 Alan Tull 2016-11-01 60 {
21aeda950c5f84 Alan Tull 2016-11-01 61 struct fpga_bridge *bridge;
21aeda950c5f84 Alan Tull 2016-11-01 62
1da11f822042eb Marco Pagani 2024-03-22 63 bridge = to_fpga_bridge(bridge_dev);
21aeda950c5f84 Alan Tull 2016-11-01 64
21aeda950c5f84 Alan Tull 2016-11-01 65 bridge->info = info;
21aeda950c5f84 Alan Tull 2016-11-01 66
1da11f822042eb Marco Pagani 2024-03-22 67 if (!mutex_trylock(&bridge->mutex))
1da11f822042eb Marco Pagani 2024-03-22 68 return ERR_PTR(-EBUSY);
21aeda950c5f84 Alan Tull 2016-11-01 69
1da11f822042eb Marco Pagani 2024-03-22 70 if (!try_module_get(bridge->br_ops_owner)) {
1da11f822042eb Marco Pagani 2024-03-22 71 mutex_unlock(&bridge->mutex);
1da11f822042eb Marco Pagani 2024-03-22 72 return ERR_PTR(-ENODEV);
1da11f822042eb Marco Pagani 2024-03-22 73 }
21aeda950c5f84 Alan Tull 2016-11-01 74
21aeda950c5f84 Alan Tull 2016-11-01 75 dev_dbg(&bridge->dev, "get\n");
21aeda950c5f84 Alan Tull 2016-11-01 76
21aeda950c5f84 Alan Tull 2016-11-01 77 return bridge;
21aeda950c5f84 Alan Tull 2016-11-01 78 }
9c1c4b2753fea3 Alan Tull 2017-11-15 79
9c1c4b2753fea3 Alan Tull 2017-11-15 80 /**
e7555cf6c263d9 Tom Rix 2021-06-08 81 * of_fpga_bridge_get - get an exclusive reference to an fpga bridge
9c1c4b2753fea3 Alan Tull 2017-11-15 82 *
8e665c9c1affcb Marco Pagani 2023-07-06 83 * @np: node pointer of an FPGA bridge.
8e665c9c1affcb Marco Pagani 2023-07-06 84 * @info: fpga image specific information.
9c1c4b2753fea3 Alan Tull 2017-11-15 85 *
8e665c9c1affcb Marco Pagani 2023-07-06 86 * Return:
8e665c9c1affcb Marco Pagani 2023-07-06 87 * * fpga_bridge struct pointer if successful.
8e665c9c1affcb Marco Pagani 2023-07-06 88 * * -EBUSY if someone already has a reference to the bridge.
8e665c9c1affcb Marco Pagani 2023-07-06 89 * * -ENODEV if @np is not an FPGA Bridge or can't take parent driver refcount.
9c1c4b2753fea3 Alan Tull 2017-11-15 90 */
9c1c4b2753fea3 Alan Tull 2017-11-15 @91 struct fpga_bridge *of_fpga_bridge_get(struct device_node *np,
9c1c4b2753fea3 Alan Tull 2017-11-15 92 struct fpga_image_info *info)
9c1c4b2753fea3 Alan Tull 2017-11-15 93 {
1da11f822042eb Marco Pagani 2024-03-22 94 struct fpga_bridge *bridge;
1da11f822042eb Marco Pagani 2024-03-22 95 struct device *bridge_dev;
9c1c4b2753fea3 Alan Tull 2017-11-15 96
1da11f822042eb Marco Pagani 2024-03-22 97 bridge_dev = class_find_device_by_of_node(&fpga_bridge_class, np);
1da11f822042eb Marco Pagani 2024-03-22 98 if (!bridge_dev)
9c1c4b2753fea3 Alan Tull 2017-11-15 99 return ERR_PTR(-ENODEV);
9c1c4b2753fea3 Alan Tull 2017-11-15 100
1da11f822042eb Marco Pagani 2024-03-22 101 bridge = __fpga_bridge_get(bridge_dev, info);
1da11f822042eb Marco Pagani 2024-03-22 102 if (IS_ERR(bridge))
1da11f822042eb Marco Pagani 2024-03-22 103 put_device(bridge_dev);
1da11f822042eb Marco Pagani 2024-03-22 104
1da11f822042eb Marco Pagani 2024-03-22 105 return bridge;
9c1c4b2753fea3 Alan Tull 2017-11-15 106 }
21aeda950c5f84 Alan Tull 2016-11-01 107 EXPORT_SYMBOL_GPL(of_fpga_bridge_get);
21aeda950c5f84 Alan Tull 2016-11-01 108
9c1c4b2753fea3 Alan Tull 2017-11-15 109 static int fpga_bridge_dev_match(struct device *dev, const void *data)
9c1c4b2753fea3 Alan Tull 2017-11-15 110 {
9c1c4b2753fea3 Alan Tull 2017-11-15 111 return dev->parent == data;
9c1c4b2753fea3 Alan Tull 2017-11-15 112 }
9c1c4b2753fea3 Alan Tull 2017-11-15 113
9c1c4b2753fea3 Alan Tull 2017-11-15 114 /**
e7555cf6c263d9 Tom Rix 2021-06-08 115 * fpga_bridge_get - get an exclusive reference to an fpga bridge
9c1c4b2753fea3 Alan Tull 2017-11-15 116 * @dev: parent device that fpga bridge was registered with
7ef1a2c1c9dffa Marco Pagani 2023-03-01 117 * @info: fpga image specific information
9c1c4b2753fea3 Alan Tull 2017-11-15 118 *
e7555cf6c263d9 Tom Rix 2021-06-08 119 * Given a device, get an exclusive reference to an fpga bridge.
9c1c4b2753fea3 Alan Tull 2017-11-15 120 *
b4d9a0e5ca1396 Alan Tull 2018-09-12 121 * Return: fpga bridge struct or IS_ERR() condition containing error code.
9c1c4b2753fea3 Alan Tull 2017-11-15 122 */
9c1c4b2753fea3 Alan Tull 2017-11-15 @123 struct fpga_bridge *fpga_bridge_get(struct device *dev,
9c1c4b2753fea3 Alan Tull 2017-11-15 124 struct fpga_image_info *info)
9c1c4b2753fea3 Alan Tull 2017-11-15 125 {
1da11f822042eb Marco Pagani 2024-03-22 126 struct fpga_bridge *bridge;
9c1c4b2753fea3 Alan Tull 2017-11-15 127 struct device *bridge_dev;
9c1c4b2753fea3 Alan Tull 2017-11-15 128
7bb2d2190d4326 Ivan Orlov 2023-08-11 129 bridge_dev = class_find_device(&fpga_bridge_class, NULL, dev,
9c1c4b2753fea3 Alan Tull 2017-11-15 130 fpga_bridge_dev_match);
9c1c4b2753fea3 Alan Tull 2017-11-15 131 if (!bridge_dev)
9c1c4b2753fea3 Alan Tull 2017-11-15 132 return ERR_PTR(-ENODEV);
9c1c4b2753fea3 Alan Tull 2017-11-15 133
1da11f822042eb Marco Pagani 2024-03-22 134 bridge = __fpga_bridge_get(bridge_dev, info);
1da11f822042eb Marco Pagani 2024-03-22 135 if (IS_ERR(bridge))
1da11f822042eb Marco Pagani 2024-03-22 136 put_device(bridge_dev);
1da11f822042eb Marco Pagani 2024-03-22 137
1da11f822042eb Marco Pagani 2024-03-22 138 return bridge;
9c1c4b2753fea3 Alan Tull 2017-11-15 139 }
9c1c4b2753fea3 Alan Tull 2017-11-15 140 EXPORT_SYMBOL_GPL(fpga_bridge_get);
9c1c4b2753fea3 Alan Tull 2017-11-15 141
21aeda950c5f84 Alan Tull 2016-11-01 142 /**
21aeda950c5f84 Alan Tull 2016-11-01 143 * fpga_bridge_put - release a reference to a bridge
21aeda950c5f84 Alan Tull 2016-11-01 144 *
21aeda950c5f84 Alan Tull 2016-11-01 145 * @bridge: FPGA bridge
21aeda950c5f84 Alan Tull 2016-11-01 146 */
21aeda950c5f84 Alan Tull 2016-11-01 @147 void fpga_bridge_put(struct fpga_bridge *bridge)
21aeda950c5f84 Alan Tull 2016-11-01 148 {
21aeda950c5f84 Alan Tull 2016-11-01 149 dev_dbg(&bridge->dev, "put\n");
21aeda950c5f84 Alan Tull 2016-11-01 150
21aeda950c5f84 Alan Tull 2016-11-01 151 bridge->info = NULL;
1da11f822042eb Marco Pagani 2024-03-22 152 module_put(bridge->br_ops_owner);
21aeda950c5f84 Alan Tull 2016-11-01 153 mutex_unlock(&bridge->mutex);
21aeda950c5f84 Alan Tull 2016-11-01 154 put_device(&bridge->dev);
21aeda950c5f84 Alan Tull 2016-11-01 155 }
21aeda950c5f84 Alan Tull 2016-11-01 156 EXPORT_SYMBOL_GPL(fpga_bridge_put);
21aeda950c5f84 Alan Tull 2016-11-01 157
21aeda950c5f84 Alan Tull 2016-11-01 158 /**
21aeda950c5f84 Alan Tull 2016-11-01 159 * fpga_bridges_enable - enable bridges in a list
21aeda950c5f84 Alan Tull 2016-11-01 160 * @bridge_list: list of FPGA bridges
21aeda950c5f84 Alan Tull 2016-11-01 161 *
21aeda950c5f84 Alan Tull 2016-11-01 162 * Enable each bridge in the list. If list is empty, do nothing.
21aeda950c5f84 Alan Tull 2016-11-01 163 *
8e665c9c1affcb Marco Pagani 2023-07-06 164 * Return: 0 for success or empty bridge list or an error code otherwise.
21aeda950c5f84 Alan Tull 2016-11-01 165 */
21aeda950c5f84 Alan Tull 2016-11-01 @166 int fpga_bridges_enable(struct list_head *bridge_list)
21aeda950c5f84 Alan Tull 2016-11-01 167 {
21aeda950c5f84 Alan Tull 2016-11-01 168 struct fpga_bridge *bridge;
21aeda950c5f84 Alan Tull 2016-11-01 169 int ret;
21aeda950c5f84 Alan Tull 2016-11-01 170
c37235cce31d5e Moritz Fischer 2017-03-10 171 list_for_each_entry(bridge, bridge_list, node) {
21aeda950c5f84 Alan Tull 2016-11-01 172 ret = fpga_bridge_enable(bridge);
21aeda950c5f84 Alan Tull 2016-11-01 173 if (ret)
21aeda950c5f84 Alan Tull 2016-11-01 174 return ret;
21aeda950c5f84 Alan Tull 2016-11-01 175 }
21aeda950c5f84 Alan Tull 2016-11-01 176
21aeda950c5f84 Alan Tull 2016-11-01 177 return 0;
21aeda950c5f84 Alan Tull 2016-11-01 178 }
21aeda950c5f84 Alan Tull 2016-11-01 179 EXPORT_SYMBOL_GPL(fpga_bridges_enable);
21aeda950c5f84 Alan Tull 2016-11-01 180
21aeda950c5f84 Alan Tull 2016-11-01 181 /**
21aeda950c5f84 Alan Tull 2016-11-01 182 * fpga_bridges_disable - disable bridges in a list
21aeda950c5f84 Alan Tull 2016-11-01 183 *
21aeda950c5f84 Alan Tull 2016-11-01 184 * @bridge_list: list of FPGA bridges
21aeda950c5f84 Alan Tull 2016-11-01 185 *
21aeda950c5f84 Alan Tull 2016-11-01 186 * Disable each bridge in the list. If list is empty, do nothing.
21aeda950c5f84 Alan Tull 2016-11-01 187 *
8e665c9c1affcb Marco Pagani 2023-07-06 188 * Return: 0 for success or empty bridge list or an error code otherwise.
21aeda950c5f84 Alan Tull 2016-11-01 189 */
21aeda950c5f84 Alan Tull 2016-11-01 @190 int fpga_bridges_disable(struct list_head *bridge_list)
21aeda950c5f84 Alan Tull 2016-11-01 191 {
21aeda950c5f84 Alan Tull 2016-11-01 192 struct fpga_bridge *bridge;
21aeda950c5f84 Alan Tull 2016-11-01 193 int ret;
21aeda950c5f84 Alan Tull 2016-11-01 194
c37235cce31d5e Moritz Fischer 2017-03-10 195 list_for_each_entry(bridge, bridge_list, node) {
21aeda950c5f84 Alan Tull 2016-11-01 196 ret = fpga_bridge_disable(bridge);
21aeda950c5f84 Alan Tull 2016-11-01 197 if (ret)
21aeda950c5f84 Alan Tull 2016-11-01 198 return ret;
21aeda950c5f84 Alan Tull 2016-11-01 199 }
21aeda950c5f84 Alan Tull 2016-11-01 200
21aeda950c5f84 Alan Tull 2016-11-01 201 return 0;
21aeda950c5f84 Alan Tull 2016-11-01 202 }
21aeda950c5f84 Alan Tull 2016-11-01 203 EXPORT_SYMBOL_GPL(fpga_bridges_disable);
21aeda950c5f84 Alan Tull 2016-11-01 204
21aeda950c5f84 Alan Tull 2016-11-01 205 /**
21aeda950c5f84 Alan Tull 2016-11-01 206 * fpga_bridges_put - put bridges
21aeda950c5f84 Alan Tull 2016-11-01 207 *
21aeda950c5f84 Alan Tull 2016-11-01 208 * @bridge_list: list of FPGA bridges
21aeda950c5f84 Alan Tull 2016-11-01 209 *
21aeda950c5f84 Alan Tull 2016-11-01 210 * For each bridge in the list, put the bridge and remove it from the list.
21aeda950c5f84 Alan Tull 2016-11-01 211 * If list is empty, do nothing.
21aeda950c5f84 Alan Tull 2016-11-01 212 */
21aeda950c5f84 Alan Tull 2016-11-01 @213 void fpga_bridges_put(struct list_head *bridge_list)
21aeda950c5f84 Alan Tull 2016-11-01 214 {
c37235cce31d5e Moritz Fischer 2017-03-10 215 struct fpga_bridge *bridge, *next;
21aeda950c5f84 Alan Tull 2016-11-01 216 unsigned long flags;
21aeda950c5f84 Alan Tull 2016-11-01 217
c37235cce31d5e Moritz Fischer 2017-03-10 218 list_for_each_entry_safe(bridge, next, bridge_list, node) {
21aeda950c5f84 Alan Tull 2016-11-01 219 fpga_bridge_put(bridge);
21aeda950c5f84 Alan Tull 2016-11-01 220
21aeda950c5f84 Alan Tull 2016-11-01 221 spin_lock_irqsave(&bridge_list_lock, flags);
21aeda950c5f84 Alan Tull 2016-11-01 222 list_del(&bridge->node);
21aeda950c5f84 Alan Tull 2016-11-01 223 spin_unlock_irqrestore(&bridge_list_lock, flags);
21aeda950c5f84 Alan Tull 2016-11-01 224 }
21aeda950c5f84 Alan Tull 2016-11-01 225 }
21aeda950c5f84 Alan Tull 2016-11-01 226 EXPORT_SYMBOL_GPL(fpga_bridges_put);
21aeda950c5f84 Alan Tull 2016-11-01 227
--
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