From 660e5ec02d5391305604887f33a844adeaa6220c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 13 Feb 2015 14:37:20 -0800 Subject: [PATCH] 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 Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/bus/arm-cci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index 0ce5e2d..84fd660 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; -- 2.7.4