tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1ce42845f987e92eabfc6e026d44d826c25c74a5 commit: 411466c5081d2f649b3583cae0f6c9ad5edec636 PM / OPP: add non-OF versions of dev_pm_opp_{cpumask_, }remove_table date: 9 months ago config: x86_64-randconfig-x008-201707 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 411466c5081d2f649b3583cae0f6c9ad5edec636 # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:119:34: note: previous definition of
'dev_pm_opp_find_freq_floor' was here
static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device
*dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:596:5: error: redefinition of
'dev_pm_opp_set_rate'
int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
^~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:180:19: note: previous definition of
'dev_pm_opp_set_rate' was here
static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long
target_freq)
^~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:926:6: error: redefinition of
'dev_pm_opp_remove'
void dev_pm_opp_remove(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:137:20: note: previous definition of
'dev_pm_opp_remove' was here
static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1212:5: error: redefinition of
'dev_pm_opp_set_supported_hw'
int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:157:19: note: previous definition of
'dev_pm_opp_set_supported_hw' was here
static inline int dev_pm_opp_set_supported_hw(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1272:6: error: redefinition of
'dev_pm_opp_put_supported_hw'
void dev_pm_opp_put_supported_hw(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:164:20: note: previous definition of
'dev_pm_opp_put_supported_hw' was here
static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1324:5: error: redefinition of
'dev_pm_opp_set_prop_name'
int dev_pm_opp_set_prop_name(struct device *dev, const char *name)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:166:19: note: previous definition of
'dev_pm_opp_set_prop_name' was here
static inline int dev_pm_opp_set_prop_name(struct device *dev, const char
*name)
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1381:6: error: redefinition of
'dev_pm_opp_put_prop_name'
void dev_pm_opp_put_prop_name(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:171:20: note: previous definition of
'dev_pm_opp_put_prop_name' was here
static inline void dev_pm_opp_put_prop_name(struct device *dev) {}
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1431:5: error: redefinition of
'dev_pm_opp_set_regulator'
int dev_pm_opp_set_regulator(struct device *dev, const char *name)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:173:19: note: previous definition of
'dev_pm_opp_set_regulator' was here
static inline int dev_pm_opp_set_regulator(struct device *dev, const char
*name)
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1490:6: error: redefinition of
'dev_pm_opp_put_regulator'
void dev_pm_opp_put_regulator(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:178:20: note: previous definition of
'dev_pm_opp_put_regulator' was here
static inline void dev_pm_opp_put_regulator(struct device *dev) {}
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1684:5: error: redefinition of 'dev_pm_opp_add'
int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long
u_volt)
^~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:131:19: note: previous definition of 'dev_pm_opp_add'
was here
static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
^~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1791:5: error: redefinition of
'dev_pm_opp_enable'
int dev_pm_opp_enable(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:141:19: note: previous definition of
'dev_pm_opp_enable' was here
static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1817:5: error: redefinition of
'dev_pm_opp_disable'
int dev_pm_opp_disable(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:146:19: note: previous definition of
'dev_pm_opp_disable' was here
static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
^~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1837:28: error: redefinition of
'dev_pm_opp_get_notifier'
struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:151:42: note: previous definition of
'dev_pm_opp_get_notifier' was here
static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/base/power/opp/core.c:1901:6: error: redefinition of
>> 'dev_pm_opp_remove_table'
void dev_pm_opp_remove_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:195:20: note: previous definition of
'dev_pm_opp_remove_table' was here
static inline void dev_pm_opp_remove_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1921:6: error: redefinition of
'dev_pm_opp_of_remove_table'
void dev_pm_opp_of_remove_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:217:20: note: previous definition of
'dev_pm_opp_of_remove_table' was here
static inline void dev_pm_opp_of_remove_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:2057:5: error: redefinition of
'dev_pm_opp_of_add_table'
int dev_pm_opp_of_add_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:25:
include/linux/pm_opp.h:212:19: note: previous definition of
'dev_pm_opp_of_add_table' was here
static inline int dev_pm_opp_of_add_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
vim +/dev_pm_opp_remove_table +1901 drivers/base/power/opp/core.c
1831 * Locking: This function must be called under rcu_read_lock().
opp_table is a
1832 * RCU protected pointer. The reason for the same is that the opp
pointer which
1833 * is returned will remain valid for use with opp_get_{voltage, freq}
only while
1834 * under the locked area. The pointer returned must be used prior to
unlocking
1835 * with rcu_read_unlock() to maintain the integrity of the pointer.
1836 */
> 1837 struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev)
1838 {
1839 struct opp_table *opp_table = _find_opp_table(dev);
1840
1841 if (IS_ERR(opp_table))
1842 return ERR_CAST(opp_table); /* matching type */
1843
1844 return &opp_table->srcu_head;
1845 }
1846 EXPORT_SYMBOL_GPL(dev_pm_opp_get_notifier);
1847
1848 /*
1849 * Free OPPs either created using static entries present in DT or even
the
1850 * dynamically added entries based on remove_all param.
1851 */
1852 static void _dev_pm_opp_remove_table(struct device *dev, bool
remove_all)
1853 {
1854 struct opp_table *opp_table;
1855 struct dev_pm_opp *opp, *tmp;
1856
1857 /* Hold our table modification lock here */
1858 mutex_lock(&opp_table_lock);
1859
1860 /* Check for existing table for 'dev' */
1861 opp_table = _find_opp_table(dev);
1862 if (IS_ERR(opp_table)) {
1863 int error = PTR_ERR(opp_table);
1864
1865 if (error != -ENODEV)
1866 WARN(1, "%s: opp_table: %d\n",
1867 IS_ERR_OR_NULL(dev) ?
1868 "Invalid device" :
dev_name(dev),
1869 error);
1870 goto unlock;
1871 }
1872
1873 /* Find if opp_table manages a single device */
1874 if (list_is_singular(&opp_table->dev_list)) {
1875 /* Free static OPPs */
1876 list_for_each_entry_safe(opp, tmp,
&opp_table->opp_list, node) {
1877 if (remove_all || !opp->dynamic)
1878 _opp_remove(opp_table, opp, true);
1879 }
1880 } else {
1881 _remove_opp_dev(_find_opp_dev(dev, opp_table),
opp_table);
1882 }
1883
1884 unlock:
1885 mutex_unlock(&opp_table_lock);
1886 }
1887
1888 /**
1889 * dev_pm_opp_remove_table() - Free all OPPs associated with the device
1890 * @dev: device pointer used to lookup OPP table.
1891 *
1892 * Free both OPPs created using static entries present in DT and the
1893 * dynamically added entries.
1894 *
1895 * Locking: The internal opp_table and opp structures are RCU protected.
1896 * Hence this function indirectly uses RCU updater strategy with mutex
locks
1897 * to keep the integrity of the internal data structures. Callers
should ensure
1898 * that this function is *NOT* called under RCU protection or in
contexts where
1899 * mutex cannot be locked.
1900 */
> 1901 void dev_pm_opp_remove_table(struct device *dev)
1902 {
1903 _dev_pm_opp_remove_table(dev, true);
1904 }
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