drivers/base: use %*pb[l] to print bitmaps including cpumasks and nodemasks

printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.

* Line termination only requires one extra space at the end of the
  buffer.  Use PAGE_SIZE - 1 instead of PAGE_SIZE - 2 when formatting.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index f829a4c71749..f160ea44a86d 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -245,7 +245,7 @@ static ssize_t print_cpus_offline(struct device *dev,
         if (!alloc_cpumask_var(&offline, GFP_KERNEL))
                 return -ENOMEM;
         cpumask_andnot(offline, cpu_possible_mask, cpu_online_mask);
-        n = cpulist_scnprintf(buf, len, offline);
+        n = scnprintf(buf, len, "%*pbl", cpumask_pr_args(offline));
         free_cpumask_var(offline);
 
         /* display offline cpus >= nr_cpu_ids */