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authorTejun Heo <tj@kernel.org>2015-02-13 14:37:51 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 21:21:38 -0800
commitc7badc90178b89c49e3852a002024d26cef5f070 (patch)
tree85a8a8e8c359e640e9a615b5c37f305888f5eba6 /drivers/scsi/scsi_debug.c
parent0b480037e8eb7928bdb760717693485bb3b728e4 (diff)
scsi: 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. * map_show()'s return value is too high by one and the function could modify beyond the end of the buffer when the formatted text is long enough. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
-rw-r--r--drivers/scsi/scsi_debug.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 113232135d27..1f8e2dc9c616 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4658,10 +4658,10 @@ static ssize_t map_show(struct device_driver *ddp, char *buf)
return scnprintf(buf, PAGE_SIZE, "0-%u\n",
sdebug_store_sectors);
- count = bitmap_scnlistprintf(buf, PAGE_SIZE, map_storep, map_size);
-
+ count = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
+ (int)map_size, map_storep);
buf[count++] = '\n';
- buf[count++] = 0;
+ buf[count] = '\0';
return count;
}