linux-next: build warning after merge of the tip tree

[Stephen Rothwell]

Hi all,

After merging the tip tree, today's linux-next build (x86_64 allnoconfig)
produced this warning:

kernel/printk/printk.c:1983:12: warning: 'printk_time' defined but not used [-Wunused-variable]
 static int printk_time;
            ^

Introduced by commit

  310b454a8653 ("printk: Add monotonic, boottime, and realtime timestamps")

-- 
Cheers,
Stephen Rothwell