usb: 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.

* drivers/uwb/drp.c::uwb_drp_handle_alien_drp() was formatting mas.bm
  into a buffer but never used it.  Removed.

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>

2 files changed, 5 insertions, 13 deletions

diff --git a/drivers/uwb/drp.c b/drivers/uwb/drp.c
index 05b7bd762254..8fc1b787dced 100644
--- a/drivers/uwb/drp.c
+++ b/drivers/uwb/drp.c
@@ -619,11 +619,9 @@ static void uwb_drp_handle_alien_drp(struct uwb_rc *rc, struct uwb_ie_drp *drp_i
         struct device *dev = &rc->uwb_dev.dev;
         struct uwb_mas_bm mas;
         struct uwb_cnflt_alien *cnflt;
-        char buf[72];
         unsigned long delay_us = UWB_MAS_LENGTH_US * UWB_MAS_PER_ZONE;
 
         uwb_drp_ie_to_bm(&mas, drp_ie);
-        bitmap_scnprintf(buf, sizeof(buf), mas.bm, UWB_NUM_MAS);
 
         list_for_each_entry(cnflt, &rc->cnflt_alien_list, rc_node) {
                 if (bitmap_equal(cnflt->mas.bm, mas.bm, UWB_NUM_MAS)) {
diff --git a/drivers/uwb/uwb-debug.c b/drivers/uwb/uwb-debug.c
index 6ec45beb7af5..0b1e5a9449b5 100644
--- a/drivers/uwb/uwb-debug.c
+++ b/drivers/uwb/uwb-debug.c
@@ -217,7 +217,6 @@ static int reservations_print(struct seq_file *s, void *p)
                 struct uwb_dev_addr devaddr;
                 char owner[UWB_ADDR_STRSIZE], target[UWB_ADDR_STRSIZE];
                 bool is_owner;
-                char buf[72];
 
                 uwb_dev_addr_print(owner, sizeof(owner), &rsv->owner->dev_addr);
                 if (rsv->target.type == UWB_RSV_TARGET_DEV) {
@@ -234,8 +233,7 @@ static int reservations_print(struct seq_file *s, void *p)
                            owner, target, uwb_rsv_state_str(rsv->state));
                 seq_printf(s, "  stream: %d  type: %s\n",
                            rsv->stream, uwb_rsv_type_str(rsv->type));
-                bitmap_scnprintf(buf, sizeof(buf), rsv->mas.bm, UWB_NUM_MAS);
-                seq_printf(s, "  %s\n", buf);
+                seq_printf(s, "  %*pb\n", UWB_NUM_MAS, rsv->mas.bm);
         }
 
         mutex_unlock(&rc->rsvs_mutex);
@@ -259,14 +257,10 @@ static const struct file_operations reservations_fops = {
 static int drp_avail_print(struct seq_file *s, void *p)
 {
         struct uwb_rc *rc = s->private;
-        char buf[72];
-
-        bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.global, UWB_NUM_MAS);
-        seq_printf(s, "global:  %s\n", buf);
-        bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.local, UWB_NUM_MAS);
-        seq_printf(s, "local:   %s\n", buf);
-        bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.pending, UWB_NUM_MAS);
-        seq_printf(s, "pending: %s\n", buf);
+
+        seq_printf(s, "global:  %*pb\n", UWB_NUM_MAS, rc->drp_avail.global);
+        seq_printf(s, "local:   %*pb\n", UWB_NUM_MAS, rc->drp_avail.local);
+        seq_printf(s, "pending: %*pb\n", UWB_NUM_MAS, rc->drp_avail.pending);
 
         return 0;
 }