* [PATCH] Documentation: add print bitmap description
@ 2015-02-26 3:28 Wang Long
2015-02-27 12:23 ` Tejun Heo
2015-02-27 22:12 ` Jonathan Corbet
0 siblings, 2 replies; 3+ messages in thread
From: Wang Long @ 2015-02-26 3:28 UTC (permalink / raw)
To: tj, corbet; +Cc: linux-doc, linux-kernel, long.wanglong, peifeiyue
as the commit: "lib/vsprintf: implement bitmap printing through
'%*pb[l]'" add an easy way to print bitmaps. so printk-formats.txt
should reflect it.
Signed-off-by: Wang Long <long.wanglong@huawei.com>
---
Documentation/printk-formats.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 5a615c1..255a061 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -239,6 +239,15 @@ s64 SHOULD be printed with %lld/%llx:
printk("%lld", s64_var);
+bitmap and its derivatives such as cpumask and nodemask:
+
+ %*pb 0779
+ %*pbl 0,3-6,8-10
+
+ For printing bitmap and its derivatives such as cpumask and nodemask,
+ %*pb output the bitmap with field width as the number of bits and %*pbl
+ output the bitmap as range list with field width as the number of bits.
+
If <type> is dependent on a config option for its size (e.g., sector_t,
blkcnt_t) or is architecture-dependent for its size (e.g., tcflag_t), use a
format specifier of its largest possible type and explicitly cast to it.
--
1.8.3.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] Documentation: add print bitmap description
2015-02-26 3:28 [PATCH] Documentation: add print bitmap description Wang Long
@ 2015-02-27 12:23 ` Tejun Heo
2015-02-27 22:12 ` Jonathan Corbet
1 sibling, 0 replies; 3+ messages in thread
From: Tejun Heo @ 2015-02-27 12:23 UTC (permalink / raw)
To: Wang Long; +Cc: corbet, linux-doc, linux-kernel, peifeiyue
On Thu, Feb 26, 2015 at 03:28:25AM +0000, Wang Long wrote:
> as the commit: "lib/vsprintf: implement bitmap printing through
> '%*pb[l]'" add an easy way to print bitmaps. so printk-formats.txt
> should reflect it.
>
> Signed-off-by: Wang Long <long.wanglong@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Oops, sorry about missing that.
Thanks.
--
tejun
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Documentation: add print bitmap description
2015-02-26 3:28 [PATCH] Documentation: add print bitmap description Wang Long
2015-02-27 12:23 ` Tejun Heo
@ 2015-02-27 22:12 ` Jonathan Corbet
1 sibling, 0 replies; 3+ messages in thread
From: Jonathan Corbet @ 2015-02-27 22:12 UTC (permalink / raw)
To: Wang Long; +Cc: tj, linux-doc, linux-kernel, peifeiyue
On Thu, 26 Feb 2015 03:28:25 +0000
Wang Long <long.wanglong@huawei.com> wrote:
> as the commit: "lib/vsprintf: implement bitmap printing through
> '%*pb[l]'" add an easy way to print bitmaps. so printk-formats.txt
> should reflect it.
Applied to the docs tree.
Thanks,
jon
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-02-27 22:12 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-02-26 3:28 [PATCH] Documentation: add print bitmap description Wang Long
2015-02-27 12:23 ` Tejun Heo
2015-02-27 22:12 ` Jonathan Corbet
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.