From e87821d18cf4db19d634a04061c0a1b7eb9c0e65 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Wed, 17 Jan 2018 14:01:29 +0800 Subject: [PATCH] clocksource: Use DEVICE_ATTR_RW/RO/WO to define device attributes Convert DEVICE_ATTR to DEVICE_ATTR_RW/RO/WO which is the preferred and simpler way of implementation. Signed-off-by: Baolin Wang Signed-off-by: Thomas Gleixner Cc: arnd@arndb.de Cc: sboyd@codeaurora.org Cc: broonie@kernel.org Cc: john.stultz@linaro.org Link: https://lkml.kernel.org/r/8f35c77e753e957b61187e8e7b2e4a3d61e4a72b.1516167691.git.baolin.wang@linaro.org --- kernel/time/clocksource.c | 43 ++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 26 deletions(-) diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index c5fdcb13200f..7ce53465782b 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -857,16 +857,16 @@ EXPORT_SYMBOL(clocksource_unregister); #ifdef CONFIG_SYSFS /** - * sysfs_show_current_clocksources - sysfs interface for current clocksource + * current_clocksource_show - sysfs interface for current clocksource * @dev: unused * @attr: unused * @buf: char buffer to be filled with clocksource list * * Provides sysfs interface for listing current clocksource. */ -static ssize_t -sysfs_show_current_clocksources(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t current_clocksource_show(struct device *dev, + struct device_attribute *attr, + char *buf) { ssize_t count = 0; @@ -895,7 +895,7 @@ ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt) } /** - * sysfs_override_clocksource - interface for manually overriding clocksource + * current_clocksource_store - interface for manually overriding clocksource * @dev: unused * @attr: unused * @buf: name of override clocksource @@ -904,9 +904,9 @@ ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt) * Takes input from sysfs interface for manually overriding the default * clocksource selection. */ -static ssize_t sysfs_override_clocksource(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t current_clocksource_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { ssize_t ret; @@ -920,9 +920,10 @@ static ssize_t sysfs_override_clocksource(struct device *dev, return ret; } +static DEVICE_ATTR_RW(current_clocksource); /** - * sysfs_unbind_current_clocksource - interface for manually unbinding clocksource + * unbind_clocksource_store - interface for manually unbinding clocksource * @dev: unused * @attr: unused * @buf: unused @@ -930,7 +931,7 @@ static ssize_t sysfs_override_clocksource(struct device *dev, * * Takes input from sysfs interface for manually unbinding a clocksource. */ -static ssize_t sysfs_unbind_clocksource(struct device *dev, +static ssize_t unbind_clocksource_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -954,19 +955,19 @@ static ssize_t sysfs_unbind_clocksource(struct device *dev, return ret ? ret : count; } +static DEVICE_ATTR_WO(unbind_clocksource); /** - * sysfs_show_available_clocksources - sysfs interface for listing clocksource + * available_clocksource_show - sysfs interface for listing clocksource * @dev: unused * @attr: unused * @buf: char buffer to be filled with clocksource list * * Provides sysfs interface for listing registered clocksources */ -static ssize_t -sysfs_show_available_clocksources(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t available_clocksource_show(struct device *dev, + struct device_attribute *attr, + char *buf) { struct clocksource *src; ssize_t count = 0; @@ -990,17 +991,7 @@ sysfs_show_available_clocksources(struct device *dev, return count; } - -/* - * Sysfs setup bits: - */ -static DEVICE_ATTR(current_clocksource, 0644, sysfs_show_current_clocksources, - sysfs_override_clocksource); - -static DEVICE_ATTR(unbind_clocksource, 0200, NULL, sysfs_unbind_clocksource); - -static DEVICE_ATTR(available_clocksource, 0444, - sysfs_show_available_clocksources, NULL); +static DEVICE_ATTR_RO(available_clocksource); static struct bus_type clocksource_subsys = { .name = "clocksource",