x86/bugs: Make cpu_show_common() static

commit 7bb4d366 upstream

cpu_show_common() is not used outside of arch/x86/kernel/cpu/bugs.c, so
make it static.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srivatsa S. Bhat <srivatsa@csail.mit.edu>
Reviewed-by: Matt Helsley (VMware) <matt.helsley@gmail.com>
Reviewed-by: Alexey Makhalov <amakhalov@vmware.com>
Reviewed-by: Bo Gan <ganb@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/x86/kernel/cpu/bugs.c

@@ -638,7 +638,7 @@ void x86_spec_ctrl_setup_ap(void)
 
 #ifdef CONFIG_SYSFS
 
-ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr,
+static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr,
 			char *buf, unsigned int bug)
 {
 	if (!boot_cpu_has_bug(bug))