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sysfs/cpu: Make crash_hotplug attribute world-readable

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There is no reason to restrict access to this attribute, as it merely
reports whether crash elfcorehdr is automatically updated on CPU hot
plug/unplug and/or online/offline events.

Note that since commit 79365026f8 ("crash: add a new kexec flag for
hotplug support"), this maps to the same flag which is world-accessible
through /sys/devices/system/memory/crash_hotplug.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Link: https://lore.kernel.org/r/20240711103409.319673-1-petr.tesarik@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Petr Tesarik 2024-07-11 12:34:09 +02:00 committed by Greg Kroah-Hartman
parent af46fe8c41
commit e777798e67
1 changed files with 1 additions and 1 deletions
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2
drivers/base/cpu.c
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@ -308,7 +308,7 @@ static ssize_t crash_hotplug_show(struct device *dev,
{
return sysfs_emit(buf, "%d\n", crash_check_hotplug_support());
}
static DEVICE_ATTR_ADMIN_RO(crash_hotplug);
static DEVICE_ATTR_RO(crash_hotplug);
#endif
static void cpu_device_release(struct device *dev)