drivers/base/power/opp/core.c:1597:5: error: redefinition of 'dev_pm_opp_register_set_opp_helper'

From: kbuild test robot
Date: Sun Feb 12 2017 - 17:41:22 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7089db84e356562f8ba737c29e472cc42d530dbc
commit: 4dab160eb1586f67e8ba7c55ffdd2373f7a5553e PM / OPP: Allow platform specific custom set_opp() callbacks
date: 10 weeks 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 4dab160eb1586f67e8ba7c55ffdd2373f7a5553e
# 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:24:
include/linux/pm_opp.h:162:34: note: previous definition of 'dev_pm_opp_get_suspend_opp' was here
static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:367:5: error: redefinition of 'dev_pm_opp_get_opp_count'
int dev_pm_opp_get_opp_count(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:142:19: note: previous definition of 'dev_pm_opp_get_opp_count' was here
static inline int dev_pm_opp_get_opp_count(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:420:20: error: redefinition of 'dev_pm_opp_find_freq_exact'
struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:167:34: note: previous definition of 'dev_pm_opp_find_freq_exact' was here
static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:486:20: error: redefinition of 'dev_pm_opp_find_freq_ceil'
struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:179:34: note: previous definition of 'dev_pm_opp_find_freq_ceil' was here
static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:527:20: error: redefinition of 'dev_pm_opp_find_freq_floor'
struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:173:34: 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:686:5: 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:24:
include/linux/pm_opp.h:242:19: 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:985:6: 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:24:
include/linux/pm_opp.h:191:20: 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:24:
include/linux/pm_opp.h:211:19: 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:24:
include/linux/pm_opp.h:218:20: 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:24:
include/linux/pm_opp.h:228:19: 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:24:
include/linux/pm_opp.h:233:20: 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:1465:19: error: redefinition of 'dev_pm_opp_set_regulators'
struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:235:33: note: previous definition of 'dev_pm_opp_set_regulators' was here
static inline struct opp_table *dev_pm_opp_set_regulators(struct device *dev, const char * const names[], unsigned int count)
^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1550:6: error: redefinition of 'dev_pm_opp_put_regulators'
void dev_pm_opp_put_regulators(struct opp_table *opp_table)
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:240:20: note: previous definition of 'dev_pm_opp_put_regulators' was here
static inline void dev_pm_opp_put_regulators(struct opp_table *opp_table) {}
^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/base/power/opp/core.c:1597:5: error: redefinition of 'dev_pm_opp_register_set_opp_helper'
int dev_pm_opp_register_set_opp_helper(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:220:19: note: previous definition of 'dev_pm_opp_register_set_opp_helper' was here
static inline int dev_pm_opp_register_set_opp_helper(struct device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/base/power/opp/core.c:1651:6: error: redefinition of 'dev_pm_opp_register_put_opp_helper'
void dev_pm_opp_register_put_opp_helper(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/base/power/opp/opp.h:21:0,
from drivers/base/power/opp/core.c:24:
include/linux/pm_opp.h:226:20: note: previous definition of 'dev_pm_opp_register_put_opp_helper' was here
static inline void dev_pm_opp_register_put_opp_helper(struct device *dev) {}
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/base/power/opp/core.c:1707:5: 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:24:
include/linux/pm_opp.h:185:19: 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:1814:5: 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:24:
include/linux/pm_opp.h:195:19: 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:1840:5: 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:24:
include/linux/pm_opp.h:200:19: 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:1860:28: 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:24:
include/linux/pm_opp.h:205:42: 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:1924:6: 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:24:
include/linux/pm_opp.h:257:20: note: previous definition of 'dev_pm_opp_remove_table' was here
static inline void dev_pm_opp_remove_table(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~

vim +/dev_pm_opp_register_set_opp_helper +1597 drivers/base/power/opp/core.c

1544 * Locking: The internal opp_table and opp structures are RCU protected.
1545 * Hence this function internally uses RCU updater strategy with mutex locks
1546 * to keep the integrity of the internal data structures. Callers should ensure
1547 * that this function is *NOT* called under RCU protection or in contexts where
1548 * mutex cannot be locked.
1549 */
> 1550 void dev_pm_opp_put_regulators(struct opp_table *opp_table)
1551 {
1552 int i;
1553
1554 mutex_lock(&opp_table_lock);
1555
1556 if (!opp_table->regulators) {
1557 pr_err("%s: Doesn't have regulators set\n", __func__);
1558 goto unlock;
1559 }
1560
1561 /* Make sure there are no concurrent readers while updating opp_table */
1562 WARN_ON(!list_empty(&opp_table->opp_list));
1563
1564 for (i = opp_table->regulator_count - 1; i >= 0; i--)
1565 regulator_put(opp_table->regulators[i]);
1566
1567 _free_set_opp_data(opp_table);
1568
1569 kfree(opp_table->regulators);
1570 opp_table->regulators = NULL;
1571 opp_table->regulator_count = 0;
1572
1573 /* Try freeing opp_table if this was the last blocking resource */
1574 _remove_opp_table(opp_table);
1575
1576 unlock:
1577 mutex_unlock(&opp_table_lock);
1578 }
1579 EXPORT_SYMBOL_GPL(dev_pm_opp_put_regulators);
1580
1581 /**
1582 * dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
1583 * @dev: Device for which the helper is getting registered.
1584 * @set_opp: Custom set OPP helper.
1585 *
1586 * This is useful to support complex platforms (like platforms with multiple
1587 * regulators per device), instead of the generic OPP set rate helper.
1588 *
1589 * This must be called before any OPPs are initialized for the device.
1590 *
1591 * Locking: The internal opp_table and opp structures are RCU protected.
1592 * Hence this function internally uses RCU updater strategy with mutex locks
1593 * to keep the integrity of the internal data structures. Callers should ensure
1594 * that this function is *NOT* called under RCU protection or in contexts where
1595 * mutex cannot be locked.
1596 */
> 1597 int dev_pm_opp_register_set_opp_helper(struct device *dev,
1598 int (*set_opp)(struct dev_pm_set_opp_data *data))
1599 {
1600 struct opp_table *opp_table;
1601 int ret;
1602
1603 if (!set_opp)
1604 return -EINVAL;
1605
1606 mutex_lock(&opp_table_lock);
1607
1608 opp_table = _add_opp_table(dev);
1609 if (!opp_table) {
1610 ret = -ENOMEM;
1611 goto unlock;
1612 }
1613
1614 /* This should be called before OPPs are initialized */
1615 if (WARN_ON(!list_empty(&opp_table->opp_list))) {
1616 ret = -EBUSY;
1617 goto err;
1618 }
1619
1620 /* Already have custom set_opp helper */
1621 if (WARN_ON(opp_table->set_opp)) {
1622 ret = -EBUSY;
1623 goto err;
1624 }
1625
1626 opp_table->set_opp = set_opp;
1627
1628 mutex_unlock(&opp_table_lock);
1629 return 0;
1630
1631 err:
1632 _remove_opp_table(opp_table);
1633 unlock:
1634 mutex_unlock(&opp_table_lock);
1635
1636 return ret;
1637 }
1638 EXPORT_SYMBOL_GPL(dev_pm_opp_register_set_opp_helper);
1639
1640 /**
1641 * dev_pm_opp_register_put_opp_helper() - Releases resources blocked for
1642 * set_opp helper
1643 * @dev: Device for which custom set_opp helper has to be cleared.
1644 *
1645 * Locking: The internal opp_table and opp structures are RCU protected.
1646 * Hence this function internally uses RCU updater strategy with mutex locks
1647 * to keep the integrity of the internal data structures. Callers should ensure
1648 * that this function is *NOT* called under RCU protection or in contexts where
1649 * mutex cannot be locked.
1650 */
> 1651 void dev_pm_opp_register_put_opp_helper(struct device *dev)
1652 {
1653 struct opp_table *opp_table;
1654

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