x86/microcode: Make revision and processor flags world-readable
authorJacek Tomaka <jacek.tomaka@poczta.fm>
Sat, 25 Aug 2018 03:50:39 +0000 (11:50 +0800)
committerThomas Gleixner <tglx@linutronix.de>
Sun, 2 Sep 2018 12:09:13 +0000 (14:09 +0200)
The microcode revision is already readable for non-root users via
/proc/cpuinfo. Thus, there's no reason to keep the same information
readable by root only in /sys/devices/system/cpu/cpuX/microcode/.

Make .../processor_flags world-readable too, while at it.

Reported-by: Tim Burgess <timb@dug.com>
Signed-off-by: Jacek Tomaka <jacek.tomaka@poczta.fm>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180825035039.14409-1-jacekt@dugeo.com
arch/x86/kernel/cpu/microcode/core.c

index b9bc8a1..2637ff0 100644 (file)
@@ -666,8 +666,8 @@ static ssize_t pf_show(struct device *dev,
 }
 
 static DEVICE_ATTR_WO(reload);
-static DEVICE_ATTR(version, 0400, version_show, NULL);
-static DEVICE_ATTR(processor_flags, 0400, pf_show, NULL);
+static DEVICE_ATTR(version, 0444, version_show, NULL);
+static DEVICE_ATTR(processor_flags, 0444, pf_show, NULL);
 
 static struct attribute *mc_default_attrs[] = {
        &dev_attr_version.attr,