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>
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@ -806,8 +806,8 @@ static int cci_pmu_event_init(struct perf_event *event)
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static ssize_t pmu_attr_cpumask_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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int n = cpulist_scnprintf(buf, PAGE_SIZE - 2, &pmu->cpus);
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int n = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
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cpumask_pr_args(&pmu->cpus));
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buf[n++] = '\n';
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buf[n] = '\0';
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return n;
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