[PATCH] sysfs/cpu: Make crash_hotplug attribute world-readable

From: Petr Tesarik
Date: Thu Jul 11 2024 - 06:35:00 EST


From: Petr Tesarik <ptesarik@xxxxxxxx>

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 79365026f8694 ("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@xxxxxxxx>
---
drivers/base/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index c61ecb0c2ae2..73d69791d0d3 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -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)
--
2.45.2