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input: use %*pb[l] to print bitmaps including cpumasks and nodemasks

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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: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2015-02-13 14:37:48 -08:00 committed by Linus Torvalds
parent 898600380c
commit 0b480037e8
2 changed files with 3 additions and 3 deletions
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4
drivers/input/keyboard/atkbd.c
View file

@ -1399,8 +1399,8 @@ static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t coun
static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
{
size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
ATKBD_KEYMAP_SIZE, atkbd->force_release_mask);
buf[len++] = '\n';
buf[len] = '\0';

2
drivers/input/keyboard/gpio_keys.c
View file

@ -190,7 +190,7 @@ static ssize_t gpio_keys_attr_show_helper(struct gpio_keys_drvdata *ddata,
__set_bit(bdata->button->code, bits);
}
ret = bitmap_scnlistprintf(buf, PAGE_SIZE - 2, bits, n_events);
ret = scnprintf(buf, PAGE_SIZE - 1, "%*pbl", n_events, bits);
buf[ret++] = '\n';
buf[ret] = '\0';