Re: [PATCH v2 3/3] drm/tinydrm: Add devres versions of drm_of_find_backlight

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Hi Meghana,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.14-rc2 next-20170929]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Meghana-Madhyastha/drm-tinydrm-Move-tinydrm_of_find_backlight-into-drm_of-c/20170930-055009
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: i386-randconfig-x071-201739 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from drivers/gpu//drm/drm_of.c:11:0:
   include/drm/drm_of.h: In function 'devm_drm_of_find_backlight':
>> include/drm/drm_of.h:73:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'static'
    static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
    ^~~~~~
>> include/drm/drm_of.h:85:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
>> drivers/gpu//drm/drm_of.c:14:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:28:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:55:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
>> drivers/gpu//drm/drm_of.c:73:42: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_find_possible_crtcs);
                                             ^
   drivers/gpu//drm/drm_of.c:86:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:91:46: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_component_match_add);
                                                 ^
   drivers/gpu//drm/drm_of.c:109:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:179:38: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_component_probe);
                                         ^
   drivers/gpu//drm/drm_of.c:192:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:213:50: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_encoder_active_endpoint);
                                                     ^
   drivers/gpu//drm/drm_of.c:231:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:263:47: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge);
                                                  ^
   drivers/gpu//drm/drm_of.c:284:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:306:37: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_find_backlight);
                                        ^
   drivers/gpu//drm/drm_of.c:324:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu//drm/drm_of.c:341:42: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(devm_drm_of_find_backlight);
                                             ^
   drivers/gpu//drm/drm_of.c:350:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
>> drivers/gpu//drm/drm_of.c:353:1: error: expected '{' at end of input
    EXPORT_SYMBOL(devm_drm_of_find_backlight_release)
    ^~~~~~~~~~~~~
>> drivers/gpu//drm/drm_of.c:353:1: warning: control reaches end of non-void function [-Wreturn-type]
    EXPORT_SYMBOL(devm_drm_of_find_backlight_release)
    ^~~~~~~~~~~~~
--
   In file included from drivers/gpu//drm/bridge/tc358767.c:38:0:
   include/drm/drm_of.h: In function 'devm_drm_of_find_backlight':
>> include/drm/drm_of.h:73:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'static'
    static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
    ^~~~~~
>> include/drm/drm_of.h:85:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from drivers/gpu//drm/bridge/tc358767.c:39:0:
>> include/drm/drm_panel.h:30:1: warning: empty declaration
    struct device_node;
    ^~~~~~
   include/drm/drm_panel.h:31:1: warning: empty declaration
    struct drm_connector;
    ^~~~~~
   include/drm/drm_panel.h:32:1: warning: empty declaration
    struct drm_device;
    ^~~~~~
   include/drm/drm_panel.h:33:1: warning: empty declaration
    struct drm_panel;
    ^~~~~~
   include/drm/drm_panel.h:34:1: warning: empty declaration
    struct display_timing;
    ^~~~~~
   include/drm/drm_panel.h:70:1: warning: empty declaration
    struct drm_panel_funcs {
    ^~~~~~
   include/drm/drm_panel.h:88:1: warning: empty declaration
    struct drm_panel {
    ^~~~~~
>> include/drm/drm_panel.h:110:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:128:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:146:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:164:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:182:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
>> drivers/gpu//drm/bridge/tc358767.c:176:13: error: storage class specified for parameter 'tc_test_pattern'
    static bool tc_test_pattern;
                ^~~~~~~~~~~~~~~
   In file included from include/linux/module.h:18:0,
                    from drivers/gpu//drm/bridge/tc358767.c:30:
   include/linux/moduleparam.h:346:59: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
     static inline type __always_unused *__check_##name(void) { return(p); }
                                                              ^
   include/linux/moduleparam.h:398:35: note: in expansion of macro '__param_check'
    #define param_check_bool(name, p) __param_check(name, p, bool)
                                      ^~~~~~~~~~~~~
   include/linux/moduleparam.h:148:2: note: in expansion of macro 'param_check_bool'
     param_check_##type(name, &(value));       \
     ^~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:148:36: error: expected declaration specifiers before ';' token
     param_check_##type(name, &(value));       \
                                       ^
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:222:20: error: storage class specified for parameter '__param_str_test'
     static const char __param_str_##name[] = prefix #name;  \
                       ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:148:36: error: parameter '__param_str_test' is initialized
     param_check_##type(name, &(value));       \
                                       ^
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: storage class specified for parameter '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:16: error: parameter '__param_test' is initialized
     static struct kernel_param __moduleparam_const __param_##name \
                   ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:223:16: warning: '__used__' attribute ignored [-Wattributes]
     static struct kernel_param __moduleparam_const __param_##name \
                   ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: section attribute not allowed for '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: alignment may not be specified for '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
>> drivers/gpu//drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:27:3: warning: empty declaration
      struct __UNIQUE_ID(name) {}
      ^
   include/linux/moduleparam.h:30:3: note: in expansion of macro '__MODULE_INFO'
      __MODULE_INFO(parmtype, name##type, #name ":" _type)
      ^~~~~~~~~~~~~
   include/linux/moduleparam.h:150:2: note: in expansion of macro '__MODULE_PARM_TYPE'
     __MODULE_PARM_TYPE(name, #type)
     ^~~~~~~~~~~~~~~~~~
--
   In file included from drivers/gpu/drm/drm_of.c:11:0:
   include/drm/drm_of.h: In function 'devm_drm_of_find_backlight':
>> include/drm/drm_of.h:73:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'static'
    static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
    ^~~~~~
>> include/drm/drm_of.h:85:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:14:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:28:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:55:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:73:42: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_find_possible_crtcs);
                                             ^
   drivers/gpu/drm/drm_of.c:86:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:91:46: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_component_match_add);
                                                 ^
   drivers/gpu/drm/drm_of.c:109:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:179:38: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_component_probe);
                                         ^
   drivers/gpu/drm/drm_of.c:192:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:213:50: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_encoder_active_endpoint);
                                                     ^
   drivers/gpu/drm/drm_of.c:231:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:263:47: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge);
                                                  ^
   drivers/gpu/drm/drm_of.c:284:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:306:37: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(drm_of_find_backlight);
                                        ^
   drivers/gpu/drm/drm_of.c:324:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:341:42: error: expected declaration specifiers before ';' token
    EXPORT_SYMBOL(devm_drm_of_find_backlight);
                                             ^
   drivers/gpu/drm/drm_of.c:350:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/drm_of.c:353:1: error: expected '{' at end of input
    EXPORT_SYMBOL(devm_drm_of_find_backlight_release)
    ^~~~~~~~~~~~~
   drivers/gpu/drm/drm_of.c:353:1: warning: control reaches end of non-void function [-Wreturn-type]
    EXPORT_SYMBOL(devm_drm_of_find_backlight_release)
    ^~~~~~~~~~~~~
--
   In file included from drivers/gpu/drm/bridge/tc358767.c:38:0:
   include/drm/drm_of.h: In function 'devm_drm_of_find_backlight':
>> include/drm/drm_of.h:73:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'static'
    static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
    ^~~~~~
>> include/drm/drm_of.h:85:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from drivers/gpu/drm/bridge/tc358767.c:39:0:
>> include/drm/drm_panel.h:30:1: warning: empty declaration
    struct device_node;
    ^~~~~~
   include/drm/drm_panel.h:31:1: warning: empty declaration
    struct drm_connector;
    ^~~~~~
   include/drm/drm_panel.h:32:1: warning: empty declaration
    struct drm_device;
    ^~~~~~
   include/drm/drm_panel.h:33:1: warning: empty declaration
    struct drm_panel;
    ^~~~~~
   include/drm/drm_panel.h:34:1: warning: empty declaration
    struct display_timing;
    ^~~~~~
   include/drm/drm_panel.h:70:1: warning: empty declaration
    struct drm_panel_funcs {
    ^~~~~~
   include/drm/drm_panel.h:88:1: warning: empty declaration
    struct drm_panel {
    ^~~~~~
>> include/drm/drm_panel.h:110:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:128:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:146:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:164:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/drm/drm_panel.h:182:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:176:13: error: storage class specified for parameter 'tc_test_pattern'
    static bool tc_test_pattern;
                ^~~~~~~~~~~~~~~
   In file included from include/linux/module.h:18:0,
                    from drivers/gpu/drm/bridge/tc358767.c:30:
   include/linux/moduleparam.h:346:59: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
     static inline type __always_unused *__check_##name(void) { return(p); }
                                                              ^
   include/linux/moduleparam.h:398:35: note: in expansion of macro '__param_check'
    #define param_check_bool(name, p) __param_check(name, p, bool)
                                      ^~~~~~~~~~~~~
   include/linux/moduleparam.h:148:2: note: in expansion of macro 'param_check_bool'
     param_check_##type(name, &(value));       \
     ^~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:148:36: error: expected declaration specifiers before ';' token
     param_check_##type(name, &(value));       \
                                       ^
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:222:20: error: storage class specified for parameter '__param_str_test'
     static const char __param_str_##name[] = prefix #name;  \
                       ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:148:36: error: parameter '__param_str_test' is initialized
     param_check_##type(name, &(value));       \
                                       ^
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: storage class specified for parameter '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:16: error: parameter '__param_test' is initialized
     static struct kernel_param __moduleparam_const __param_##name \
                   ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:223:16: warning: '__used__' attribute ignored [-Wattributes]
     static struct kernel_param __moduleparam_const __param_##name \
                   ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: section attribute not allowed for '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:223:49: error: alignment may not be specified for '__param_test'
     static struct kernel_param __moduleparam_const __param_##name \
                                                    ^
   include/linux/moduleparam.h:169:2: note: in expansion of macro '__module_param_call'
     __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:149:2: note: in expansion of macro 'module_param_cb'
     module_param_cb(name, &param_ops_##type, &value, perm);     \
     ^~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:27:3: warning: empty declaration
      struct __UNIQUE_ID(name) {}
      ^
   include/linux/moduleparam.h:30:3: note: in expansion of macro '__MODULE_INFO'
      __MODULE_INFO(parmtype, name##type, #name ":" _type)
      ^~~~~~~~~~~~~
   include/linux/moduleparam.h:150:2: note: in expansion of macro '__MODULE_PARM_TYPE'
     __MODULE_PARM_TYPE(name, #type)
     ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:177:1: note: in expansion of macro 'module_param_named'
    module_param_named(test, tc_test_pattern, bool, 0644);
    ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:179:1: warning: empty declaration
    struct tc_edp_link {
    ^~~~~~
   drivers/gpu/drm/bridge/tc358767.c:195:23: error: field 'connector' has incomplete type
     struct drm_connector connector;
                          ^~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:189:1: warning: empty declaration
    struct tc_data {
    ^~~~~~
   drivers/gpu/drm/bridge/tc358767.c:215:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:220:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:225:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:247:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:269:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:275:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:296:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   drivers/gpu/drm/bridge/tc358767.c:359:27: error: storage class specified for parameter 'training_pattern1_errors'
    static const char * const training_pattern1_errors[] = {
                              ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:359:1: error: parameter 'training_pattern1_errors' is initialized
    static const char * const training_pattern1_errors[] = {
    ^~~~~~
   drivers/gpu/drm/bridge/tc358767.c:360:2: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     "No errors",
     ^~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:360:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:361:2: warning: excess elements in scalar initializer
     "Aux write error",
     ^~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:361:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:362:2: warning: excess elements in scalar initializer
     "Aux read error",
     ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:362:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:363:2: warning: excess elements in scalar initializer
     "Max voltage reached error",
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:363:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:364:2: warning: excess elements in scalar initializer
     "Loop counter expired error",
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:364:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:365:2: warning: excess elements in scalar initializer
     "res", "res", "res"
     ^~~~~
   drivers/gpu/drm/bridge/tc358767.c:365:2: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:365:9: warning: excess elements in scalar initializer
     "res", "res", "res"
            ^~~~~
   drivers/gpu/drm/bridge/tc358767.c:365:9: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:365:16: warning: excess elements in scalar initializer
     "res", "res", "res"
                   ^~~~~
   drivers/gpu/drm/bridge/tc358767.c:365:16: note: (near initialization for 'training_pattern1_errors')
   drivers/gpu/drm/bridge/tc358767.c:368:27: error: storage class specified for parameter 'training_pattern2_errors'
    static const char * const training_pattern2_errors[] = {
                              ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/tc358767.c:368:1: error: parameter 'training_pattern2_errors' is initialized
    static const char * const training_pattern2_errors[] = {
    ^~~~~~
   drivers/gpu/drm/bridge/tc358767.c:369:2: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     "No errors",
     ^~~~~~~~~~~
..

vim +73 include/drm/drm_of.h

7e435aad Russell King       2014-06-15  14  
7e435aad Russell King       2014-06-15  15  #ifdef CONFIG_OF
91faa047 Daniel Vetter      2017-03-22  16  uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
7e435aad Russell King       2014-06-15  17  				    struct device_node *port);
91faa047 Daniel Vetter      2017-03-22  18  void drm_of_component_match_add(struct device *master,
97ac0e47 Russell King       2016-10-19  19  				struct component_match **matchptr,
97ac0e47 Russell King       2016-10-19  20  				int (*compare)(struct device *, void *),
97ac0e47 Russell King       2016-10-19  21  				struct device_node *node);
91faa047 Daniel Vetter      2017-03-22  22  int drm_of_component_probe(struct device *dev,
df785aa8 Liviu Dudau        2015-10-20  23  			   int (*compare_of)(struct device *, void *),
df785aa8 Liviu Dudau        2015-10-20  24  			   const struct component_master_ops *m_ops);
91faa047 Daniel Vetter      2017-03-22  25  int drm_of_encoder_active_endpoint(struct device_node *node,
4cacf91f Philipp Zabel      2015-02-24  26  				   struct drm_encoder *encoder,
4cacf91f Philipp Zabel      2015-02-24  27  				   struct of_endpoint *endpoint);
1f2db303 Rob Herring        2017-03-22  28  int drm_of_find_panel_or_bridge(const struct device_node *np,
1f2db303 Rob Herring        2017-03-22  29  				int port, int endpoint,
1f2db303 Rob Herring        2017-03-22  30  				struct drm_panel **panel,
1f2db303 Rob Herring        2017-03-22  31  				struct drm_bridge **bridge);
4fb60416 Meghana Madhyastha 2017-09-28  32  struct backlight_device *drm_of_find_backlight(struct device *dev);
5c09694e Meghana Madhyastha 2017-09-28 @33  struct backlight_device *devm_drm_of_find_backlight(struct device *dev)
5c09694e Meghana Madhyastha 2017-09-28  34  static void devm_drm_of_find_backlight_release(void *data)
7e435aad Russell King       2014-06-15  35  #else
7e435aad Russell King       2014-06-15  36  static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
7e435aad Russell King       2014-06-15  37  						  struct device_node *port)
7e435aad Russell King       2014-06-15  38  {
7e435aad Russell King       2014-06-15  39  	return 0;
7e435aad Russell King       2014-06-15  40  }
df785aa8 Liviu Dudau        2015-10-20  41  
329f4c81 Arnd Bergmann      2016-10-26  42  static inline void
329f4c81 Arnd Bergmann      2016-10-26  43  drm_of_component_match_add(struct device *master,
97ac0e47 Russell King       2016-10-19  44  			   struct component_match **matchptr,
97ac0e47 Russell King       2016-10-19  45  			   int (*compare)(struct device *, void *),
97ac0e47 Russell King       2016-10-19  46  			   struct device_node *node)
97ac0e47 Russell King       2016-10-19  47  {
97ac0e47 Russell King       2016-10-19  48  }
97ac0e47 Russell King       2016-10-19  49  
df785aa8 Liviu Dudau        2015-10-20  50  static inline int
df785aa8 Liviu Dudau        2015-10-20  51  drm_of_component_probe(struct device *dev,
df785aa8 Liviu Dudau        2015-10-20  52  		       int (*compare_of)(struct device *, void *),
df785aa8 Liviu Dudau        2015-10-20  53  		       const struct component_master_ops *m_ops)
df785aa8 Liviu Dudau        2015-10-20  54  {
df785aa8 Liviu Dudau        2015-10-20  55  	return -EINVAL;
df785aa8 Liviu Dudau        2015-10-20  56  }
4cacf91f Philipp Zabel      2015-02-24  57  
4cacf91f Philipp Zabel      2015-02-24  58  static inline int drm_of_encoder_active_endpoint(struct device_node *node,
4cacf91f Philipp Zabel      2015-02-24  59  						 struct drm_encoder *encoder,
4cacf91f Philipp Zabel      2015-02-24  60  						 struct of_endpoint *endpoint)
4cacf91f Philipp Zabel      2015-02-24  61  {
4cacf91f Philipp Zabel      2015-02-24  62  	return -EINVAL;
4cacf91f Philipp Zabel      2015-02-24  63  }
1f2db303 Rob Herring        2017-03-22  64  static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
1f2db303 Rob Herring        2017-03-22  65  					      int port, int endpoint,
1f2db303 Rob Herring        2017-03-22  66  					      struct drm_panel **panel,
1f2db303 Rob Herring        2017-03-22  67  					      struct drm_bridge **bridge)
1f2db303 Rob Herring        2017-03-22  68  {
1f2db303 Rob Herring        2017-03-22  69  	return -EINVAL;
1f2db303 Rob Herring        2017-03-22  70  }
7e435aad Russell King       2014-06-15  71  #endif
7e435aad Russell King       2014-06-15  72  
4cacf91f Philipp Zabel      2015-02-24 @73  static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
4cacf91f Philipp Zabel      2015-02-24  74  						    struct drm_encoder *encoder)
4cacf91f Philipp Zabel      2015-02-24  75  {
4cacf91f Philipp Zabel      2015-02-24  76  	struct of_endpoint endpoint;
4cacf91f Philipp Zabel      2015-02-24  77  	int ret = drm_of_encoder_active_endpoint(node, encoder,
4cacf91f Philipp Zabel      2015-02-24  78  						 &endpoint);
4cacf91f Philipp Zabel      2015-02-24  79  
4cacf91f Philipp Zabel      2015-02-24  80  	return ret ?: endpoint.id;
4cacf91f Philipp Zabel      2015-02-24  81  }
4cacf91f Philipp Zabel      2015-02-24  82  
4cacf91f Philipp Zabel      2015-02-24  83  static inline int drm_of_encoder_active_port_id(struct device_node *node,
4cacf91f Philipp Zabel      2015-02-24  84  						struct drm_encoder *encoder)
4cacf91f Philipp Zabel      2015-02-24 @85  {
4cacf91f Philipp Zabel      2015-02-24  86  	struct of_endpoint endpoint;
4cacf91f Philipp Zabel      2015-02-24  87  	int ret = drm_of_encoder_active_endpoint(node, encoder,
4cacf91f Philipp Zabel      2015-02-24  88  						 &endpoint);
4cacf91f Philipp Zabel      2015-02-24  89  
4cacf91f Philipp Zabel      2015-02-24  90  	return ret ?: endpoint.port;
4cacf91f Philipp Zabel      2015-02-24  91  }
4cacf91f Philipp Zabel      2015-02-24  92  

:::::: The code at line 73 was first introduced by commit
:::::: 4cacf91fcb1d7118e93caf9cb6651d7f7b56e58d drm: add drm_of_encoder_active_endpoint helpers

:::::: TO: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
:::::: CC: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>

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