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authorTejun Heo <tj@kernel.org>2015-02-13 14:37:20 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 21:21:37 -0800
commit660e5ec02d5391305604887f33a844adeaa6220c (patch)
treecd472ca842a5b84bbf5d9988fb1cdd9c0af812c9 /drivers
parent62518994dd4c7c9a0a634441f012281406887258 (diff)
arm: 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> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/bus/arm-cci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 0ce5e2d65a06..84fd66057dad 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -806,8 +806,8 @@ static int cci_pmu_event_init(struct perf_event *event)
static ssize_t pmu_attr_cpumask_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- int n = cpulist_scnprintf(buf, PAGE_SIZE - 2, &pmu->cpus);
-
+ int n = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
+ cpumask_pr_args(&pmu->cpus));
buf[n++] = '\n';
buf[n] = '\0';
return n;