| Message ID | 1560534863-15115-13-git-send-email-suzuki.poulose@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
On Fri 2019-06-14 18:54:07, Suzuki K Poulose wrote: > Add a new wrapper for class_find_device() to search for devices > by name and convert the existing users to use the new helper. > > Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Pavel Machek <pavel@ucw.cz>
On 14/06/2019 18:54:07+0100, Suzuki K Poulose wrote: > Add a new wrapper for class_find_device() to search for devices > by name and convert the existing users to use the new helper. > > Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> > Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> > Cc: Alessandro Zummo <a.zummo@towertech.it> > Cc: Alexander Aring <alex.aring@gmail.com> > Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> > Cc: Dan Murphy <dmurphy@ti.com> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > Cc: Heiko Carstens <heiko.carstens@de.ibm.com> > Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> > Cc: linux-leds@vger.kernel.org > Cc: linux-rtc@vger.kernel.org > Cc: linux-usb@vger.kernel.org > Cc: linux-wpan@vger.kernel.org > Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> > Cc: Stefan Schmidt <stefan@datenfreihafen.org> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: "Rafael J. Wysocki" <rafael@kernel.org> > Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > --- > drivers/hwtracing/stm/core.c | 9 +-------- > drivers/leds/led-class.c | 9 +-------- > drivers/rtc/interface.c | 11 +---------- > drivers/s390/crypto/zcrypt_api.c | 11 +---------- > drivers/usb/roles/class.c | 8 +------- > drivers/usb/typec/class.c | 8 +------- > include/linux/device.h | 12 ++++++++++++ > net/ieee802154/core.c | 7 +------ > 8 files changed, 19 insertions(+), 56 deletions(-) > > diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c > index e55b902..2b6bd42 100644 > --- a/drivers/hwtracing/stm/core.c > +++ b/drivers/hwtracing/stm/core.c > @@ -89,13 +89,6 @@ static struct class stm_class = { > .dev_groups = stm_groups, > }; > > -static int stm_dev_match(struct device *dev, const void *data) > -{ > - const char *name = data; > - > - return sysfs_streq(name, dev_name(dev)); > -} > - > /** > * stm_find_device() - find stm device by name > * @buf: character buffer containing the name > @@ -116,7 +109,7 @@ struct stm_device *stm_find_device(const char *buf) > if (!stm_core_up) > return NULL; > > - dev = class_find_device(&stm_class, NULL, buf, stm_dev_match); > + dev = class_find_device_by_name(&stm_class, buf); > if (!dev) > return NULL; > > diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c > index 85848c5..317a619 100644 > --- a/drivers/leds/led-class.c > +++ b/drivers/leds/led-class.c > @@ -216,13 +216,6 @@ static int led_resume(struct device *dev) > > static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume); > > -static int match_name(struct device *dev, const void *data) > -{ > - if (!dev_name(dev)) > - return 0; > - return !strcmp(dev_name(dev), (char *)data); > -} > - > static int led_classdev_next_name(const char *init_name, char *name, > size_t len) > { > @@ -233,7 +226,7 @@ static int led_classdev_next_name(const char *init_name, char *name, > strlcpy(name, init_name, len); > > while ((ret < len) && > - (dev = class_find_device(leds_class, NULL, name, match_name))) { > + (dev = class_find_device_by_name(leds_class, name))) { > put_device(dev); > ret = snprintf(name, len, "%s_%u", init_name, ++i); > } > diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c > index 4124f4d..1bee39c 100644 > --- a/drivers/rtc/interface.c > +++ b/drivers/rtc/interface.c > @@ -663,21 +663,12 @@ void rtc_update_irq(struct rtc_device *rtc, > } > EXPORT_SYMBOL_GPL(rtc_update_irq); > > -static int __rtc_match(struct device *dev, const void *data) > -{ > - const char *name = data; > - > - if (strcmp(dev_name(dev), name) == 0) > - return 1; > - return 0; > -} > - > struct rtc_device *rtc_class_open(const char *name) > { > struct device *dev; > struct rtc_device *rtc = NULL; > > - dev = class_find_device(rtc_class, NULL, name, __rtc_match); > + dev = class_find_device_by_name(rtc_class, name); > if (dev) > rtc = to_rtc_device(dev); > > diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c > index 1058b4b..38a5a47 100644 > --- a/drivers/s390/crypto/zcrypt_api.c > +++ b/drivers/s390/crypto/zcrypt_api.c > @@ -133,12 +133,6 @@ struct zcdn_device { > static int zcdn_create(const char *name); > static int zcdn_destroy(const char *name); > > -/* helper function, matches the name for find_zcdndev_by_name() */ > -static int __match_zcdn_name(struct device *dev, const void *data) > -{ > - return strcmp(dev_name(dev), (const char *)data) == 0; > -} > - > /* helper function, matches the devt value for find_zcdndev_by_devt() */ > static int __match_zcdn_devt(struct device *dev, const void *data) > { > @@ -152,10 +146,7 @@ static int __match_zcdn_devt(struct device *dev, const void *data) > */ > static inline struct zcdn_device *find_zcdndev_by_name(const char *name) > { > - struct device *dev = > - class_find_device(zcrypt_class, NULL, > - (void *) name, > - __match_zcdn_name); > + struct device *dev = class_find_device_by_name(zcrypt_class, name); > > return dev ? to_zcdn_dev(dev) : NULL; > } > diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c > index f45d8df..07aaa96 100644 > --- a/drivers/usb/roles/class.c > +++ b/drivers/usb/roles/class.c > @@ -90,11 +90,6 @@ static int switch_fwnode_match(struct device *dev, const void *fwnode) > return dev_fwnode(dev) == fwnode; > } > > -static int switch_name_match(struct device *dev, const void *name) > -{ > - return !strcmp((const char *)name, dev_name(dev)); > -} > - > static void *usb_role_switch_match(struct device_connection *con, int ep, > void *data) > { > @@ -107,8 +102,7 @@ static void *usb_role_switch_match(struct device_connection *con, int ep, > dev = class_find_device(role_class, NULL, con->fwnode, > switch_fwnode_match); > } else { > - dev = class_find_device(role_class, NULL, con->endpoint[ep], > - switch_name_match); > + dev = class_find_device_by_name(role_class, con->endpoint[ep]); > } > > return dev ? to_role_switch(dev) : ERR_PTR(-EPROBE_DEFER); > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > index 2eb6238..18a0687 100644 > --- a/drivers/usb/typec/class.c > +++ b/drivers/usb/typec/class.c > @@ -210,11 +210,6 @@ static int typec_port_fwnode_match(struct device *dev, const void *fwnode) > return dev_fwnode(dev) == fwnode; > } > > -static int typec_port_name_match(struct device *dev, const void *name) > -{ > - return !strcmp((const char *)name, dev_name(dev)); > -} > - > static void *typec_port_match(struct device_connection *con, int ep, void *data) > { > struct device *dev; > @@ -227,8 +222,7 @@ static void *typec_port_match(struct device_connection *con, int ep, void *data) > return class_find_device(typec_class, NULL, con->fwnode, > typec_port_fwnode_match); > > - dev = class_find_device(typec_class, NULL, con->endpoint[ep], > - typec_port_name_match); > + dev = class_find_device_by_name(typec_class, con->endpoint[ep]); > > return dev ? dev : ERR_PTR(-EPROBE_DEFER); > } > diff --git a/include/linux/device.h b/include/linux/device.h > index a449d09..bb14c7f 100644 > --- a/include/linux/device.h > +++ b/include/linux/device.h > @@ -485,6 +485,18 @@ extern struct device *class_find_device(struct class *class, > struct device *start, const void *data, > int (*match)(struct device *, const void *)); > > +/** > + * class_find_device_by_name - device iterator for locating a particular device > + * of a specific name. > + * @class: class type > + * @name: name of the device to match > + */ > +static inline struct device *class_find_device_by_name(struct class *class, > + const char *name) > +{ > + return class_find_device(class, NULL, name, device_match_name); > +} > + > struct class_attribute { > struct attribute attr; > ssize_t (*show)(struct class *class, struct class_attribute *attr, > diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c > index 60b7ac5..de259b5 100644 > --- a/net/ieee802154/core.c > +++ b/net/ieee802154/core.c > @@ -23,11 +23,6 @@ > LIST_HEAD(cfg802154_rdev_list); > int cfg802154_rdev_list_generation; > > -static int wpan_phy_match(struct device *dev, const void *data) > -{ > - return !strcmp(dev_name(dev), (const char *)data); > -} > - > struct wpan_phy *wpan_phy_find(const char *str) > { > struct device *dev; > @@ -35,7 +30,7 @@ struct wpan_phy *wpan_phy_find(const char *str) > if (WARN_ON(!str)) > return NULL; > > - dev = class_find_device(&wpan_phy_class, NULL, str, wpan_phy_match); > + dev = class_find_device_by_name(&wpan_phy_class, str); > if (!dev) > return NULL; > > -- > 2.7.4 >
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index e55b902..2b6bd42 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -89,13 +89,6 @@ static struct class stm_class = { .dev_groups = stm_groups, }; -static int stm_dev_match(struct device *dev, const void *data) -{ - const char *name = data; - - return sysfs_streq(name, dev_name(dev)); -} - /** * stm_find_device() - find stm device by name * @buf: character buffer containing the name @@ -116,7 +109,7 @@ struct stm_device *stm_find_device(const char *buf) if (!stm_core_up) return NULL; - dev = class_find_device(&stm_class, NULL, buf, stm_dev_match); + dev = class_find_device_by_name(&stm_class, buf); if (!dev) return NULL; diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 85848c5..317a619 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -216,13 +216,6 @@ static int led_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume); -static int match_name(struct device *dev, const void *data) -{ - if (!dev_name(dev)) - return 0; - return !strcmp(dev_name(dev), (char *)data); -} - static int led_classdev_next_name(const char *init_name, char *name, size_t len) { @@ -233,7 +226,7 @@ static int led_classdev_next_name(const char *init_name, char *name, strlcpy(name, init_name, len); while ((ret < len) && - (dev = class_find_device(leds_class, NULL, name, match_name))) { + (dev = class_find_device_by_name(leds_class, name))) { put_device(dev); ret = snprintf(name, len, "%s_%u", init_name, ++i); } diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 4124f4d..1bee39c 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -663,21 +663,12 @@ void rtc_update_irq(struct rtc_device *rtc, } EXPORT_SYMBOL_GPL(rtc_update_irq); -static int __rtc_match(struct device *dev, const void *data) -{ - const char *name = data; - - if (strcmp(dev_name(dev), name) == 0) - return 1; - return 0; -} - struct rtc_device *rtc_class_open(const char *name) { struct device *dev; struct rtc_device *rtc = NULL; - dev = class_find_device(rtc_class, NULL, name, __rtc_match); + dev = class_find_device_by_name(rtc_class, name); if (dev) rtc = to_rtc_device(dev); diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 1058b4b..38a5a47 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -133,12 +133,6 @@ struct zcdn_device { static int zcdn_create(const char *name); static int zcdn_destroy(const char *name); -/* helper function, matches the name for find_zcdndev_by_name() */ -static int __match_zcdn_name(struct device *dev, const void *data) -{ - return strcmp(dev_name(dev), (const char *)data) == 0; -} - /* helper function, matches the devt value for find_zcdndev_by_devt() */ static int __match_zcdn_devt(struct device *dev, const void *data) { @@ -152,10 +146,7 @@ static int __match_zcdn_devt(struct device *dev, const void *data) */ static inline struct zcdn_device *find_zcdndev_by_name(const char *name) { - struct device *dev = - class_find_device(zcrypt_class, NULL, - (void *) name, - __match_zcdn_name); + struct device *dev = class_find_device_by_name(zcrypt_class, name); return dev ? to_zcdn_dev(dev) : NULL; } diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c index f45d8df..07aaa96 100644 --- a/drivers/usb/roles/class.c +++ b/drivers/usb/roles/class.c @@ -90,11 +90,6 @@ static int switch_fwnode_match(struct device *dev, const void *fwnode) return dev_fwnode(dev) == fwnode; } -static int switch_name_match(struct device *dev, const void *name) -{ - return !strcmp((const char *)name, dev_name(dev)); -} - static void *usb_role_switch_match(struct device_connection *con, int ep, void *data) { @@ -107,8 +102,7 @@ static void *usb_role_switch_match(struct device_connection *con, int ep, dev = class_find_device(role_class, NULL, con->fwnode, switch_fwnode_match); } else { - dev = class_find_device(role_class, NULL, con->endpoint[ep], - switch_name_match); + dev = class_find_device_by_name(role_class, con->endpoint[ep]); } return dev ? to_role_switch(dev) : ERR_PTR(-EPROBE_DEFER); diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 2eb6238..18a0687 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -210,11 +210,6 @@ static int typec_port_fwnode_match(struct device *dev, const void *fwnode) return dev_fwnode(dev) == fwnode; } -static int typec_port_name_match(struct device *dev, const void *name) -{ - return !strcmp((const char *)name, dev_name(dev)); -} - static void *typec_port_match(struct device_connection *con, int ep, void *data) { struct device *dev; @@ -227,8 +222,7 @@ static void *typec_port_match(struct device_connection *con, int ep, void *data) return class_find_device(typec_class, NULL, con->fwnode, typec_port_fwnode_match); - dev = class_find_device(typec_class, NULL, con->endpoint[ep], - typec_port_name_match); + dev = class_find_device_by_name(typec_class, con->endpoint[ep]); return dev ? dev : ERR_PTR(-EPROBE_DEFER); } diff --git a/include/linux/device.h b/include/linux/device.h index a449d09..bb14c7f 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -485,6 +485,18 @@ extern struct device *class_find_device(struct class *class, struct device *start, const void *data, int (*match)(struct device *, const void *)); +/** + * class_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @class: class type + * @name: name of the device to match + */ +static inline struct device *class_find_device_by_name(struct class *class, + const char *name) +{ + return class_find_device(class, NULL, name, device_match_name); +} + struct class_attribute { struct attribute attr; ssize_t (*show)(struct class *class, struct class_attribute *attr, diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c index 60b7ac5..de259b5 100644 --- a/net/ieee802154/core.c +++ b/net/ieee802154/core.c @@ -23,11 +23,6 @@ LIST_HEAD(cfg802154_rdev_list); int cfg802154_rdev_list_generation; -static int wpan_phy_match(struct device *dev, const void *data) -{ - return !strcmp(dev_name(dev), (const char *)data); -} - struct wpan_phy *wpan_phy_find(const char *str) { struct device *dev; @@ -35,7 +30,7 @@ struct wpan_phy *wpan_phy_find(const char *str) if (WARN_ON(!str)) return NULL; - dev = class_find_device(&wpan_phy_class, NULL, str, wpan_phy_match); + dev = class_find_device_by_name(&wpan_phy_class, str); if (!dev) return NULL;
Add a new wrapper for class_find_device() to search for devices by name and convert the existing users to use the new helper. Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexander Aring <alex.aring@gmail.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Dan Murphy <dmurphy@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: linux-leds@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wpan@vger.kernel.org Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Stefan Schmidt <stefan@datenfreihafen.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/hwtracing/stm/core.c | 9 +-------- drivers/leds/led-class.c | 9 +-------- drivers/rtc/interface.c | 11 +---------- drivers/s390/crypto/zcrypt_api.c | 11 +---------- drivers/usb/roles/class.c | 8 +------- drivers/usb/typec/class.c | 8 +------- include/linux/device.h | 12 ++++++++++++ net/ieee802154/core.c | 7 +------ 8 files changed, 19 insertions(+), 56 deletions(-)