powerpc: 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.

* Spurious if (len > 1) test dropped from shared_cpu_map_show().

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 4 insertions, 9 deletions

diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 4ba554ec8eaf..68c7e5cc98e0 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -131,10 +131,8 @@ static int ics_opal_set_affinity(struct irq_data *d,
 
         wanted_server = xics_get_irq_server(d->irq, cpumask, 1);
         if (wanted_server < 0) {
-                char cpulist[128];
-                cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
-                pr_warning("%s: No online cpus in the mask %s for irq %d\n",
-                           __func__, cpulist, d->irq);
+                pr_warning("%s: No online cpus in the mask %*pb for irq %d\n",
+                           __func__, cpumask_pr_args(cpumask), d->irq);
                 return -1;
         }
         server = ics_opal_mangle_server(wanted_server);
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index bc81335b2cbc..0af97deb83f3 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -140,11 +140,8 @@ static int ics_rtas_set_affinity(struct irq_data *d,
 
         irq_server = xics_get_irq_server(d->irq, cpumask, 1);
         if (irq_server == -1) {
-                char cpulist[128];
-                cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
-                printk(KERN_WARNING
-                        "%s: No online cpus in the mask %s for irq %d\n",
-                        __func__, cpulist, d->irq);
+                pr_warning("%s: No online cpus in the mask %*pb for irq %d\n",
+                           __func__, cpumask_pr_args(cpumask), d->irq);
                 return -1;
         }