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drivers: Introduce device lookup variants by name

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Add a helper to match the device name for device lookup. Also
reuse this generic exported helper for the existing bus_find_device_by_name().
and add similar variants for driver/class.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Harald Freudenberger <freude@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
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: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Stefan Schmidt <stefan@datenfreihafen.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20190723221838.12024-2-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Suzuki K Poulose
2019-07-23 23:18:32 +01:00
committed by Greg Kroah-Hartman
parent 5f9e832c13
commit 6cda08a20d
12 changed files with 54 additions and 106 deletions
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11
drivers/s390/crypto/zcrypt_api.c
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@@ -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;
}