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authorLukas Wunner <lukas@wunner.de>2024-04-20 23:00:04 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-05-04 18:37:03 +0300
commitb91b73a43822566930490e5aa421ccb1900a2124 (patch)
tree63663bca2c8789cac302c3a19475bd8594d0557f /arch/x86
parent7b53e926bfe222fd0cbe94d782d8577ac4116e0a (diff)
downloadlinux-b91b73a43822566930490e5aa421ccb1900a2124.tar.xz
perf: Use device_show_string() helper for sysfs attributes
Deduplicate sysfs ->show() callbacks which expose a string at a static memory location. Use the newly introduced device_show_string() helper in the driver core instead by declaring those sysfs attributes with DEVICE_STRING_ATTR_RO(). No functional change intended. Signed-off-by: Lukas Wunner <lukas@wunner.de> Link: https://lore.kernel.org/r/3a297850312b4ecb62d6872121de04496900f502.1713608122.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/events/intel/core.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 768d1414897f..38c1b1f1deaa 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -5645,18 +5645,11 @@ lbr_is_visible(struct kobject *kobj, struct attribute *attr, int i)
static char pmu_name_str[30];
-static ssize_t pmu_name_show(struct device *cdev,
- struct device_attribute *attr,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%s\n", pmu_name_str);
-}
-
-static DEVICE_ATTR_RO(pmu_name);
+static DEVICE_STRING_ATTR_RO(pmu_name, 0444, pmu_name_str);
static struct attribute *intel_pmu_caps_attrs[] = {
- &dev_attr_pmu_name.attr,
- NULL
+ &dev_attr_pmu_name.attr.attr,
+ NULL
};
static DEVICE_ATTR(allow_tsx_force_abort, 0644,