From: "H. Peter Anvin" <hpa@zytor.com>
To: benh@kernel.crashing.org
Cc: Yinghai Lu <yinghai@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Geert.Uytterhoeven@sonycom.com, linux-kernel@vger.kernel.org,
mingo@elte.hu, David Miller <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Fix broken debug output reserve_region_with_split()
Date: Thu, 16 Oct 2008 23:38:19 -0700 [thread overview]
Message-ID: <48F832DB.2050502@zytor.com> (raw)
In-Reply-To: <1224215192.7654.70.camel@pasglop>
Benjamin Herrenschmidt wrote:
>
> With that patch, it will use just as many digits as necessary to display
> a given number. The question I'm asking in the comments is whether we
> want to instead use fixed digits with zero padding, and in that case,
> do we want a hook or something for archs to decide how many digits
> for IO vs. memory.
>
Yes, and yes.
We want to pad to keep people from mistaking, say, c000000 from
c0000000. At least on x86, it also acts as a visual cue for the type of
resource space, as people are used to seeing I/O ports as 16-bit numbers
with four hexdigits, and 8- or 16-hexdigit numbers for memory addresses.
-hpa
prev parent reply other threads:[~2008-10-17 6:41 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-14 0:53 [PATCH] Fix broken debug output reserve_region_with_split() Benjamin Herrenschmidt
2008-10-14 1:04 ` H. Peter Anvin
2008-10-14 1:14 ` Yinghai Lu
2008-10-14 1:16 ` H. Peter Anvin
2008-10-14 1:34 ` David Miller
2008-10-14 1:41 ` Benjamin Herrenschmidt
2008-10-14 1:41 ` Benjamin Herrenschmidt
2008-10-14 1:45 ` David Miller
2008-10-14 2:15 ` Benjamin Herrenschmidt
2008-10-14 2:54 ` H. Peter Anvin
2008-10-14 3:47 ` Benjamin Herrenschmidt
2008-10-14 5:38 ` David Miller
2008-10-16 8:30 ` Geert Uytterhoeven
2008-10-16 8:38 ` David Miller
2008-10-16 9:02 ` H. Peter Anvin
2008-10-17 3:02 ` Benjamin Herrenschmidt
2008-10-17 3:06 ` Benjamin Herrenschmidt
2008-10-17 3:13 ` Roland Dreier
2008-10-17 3:31 ` Benjamin Herrenschmidt
2008-10-17 3:49 ` Linus Torvalds
2008-10-17 4:04 ` David Miller
2008-10-17 4:18 ` Linus Torvalds
2008-10-17 5:00 ` Benjamin Herrenschmidt
2008-10-17 5:24 ` David Miller
2008-10-17 5:12 ` Benjamin Herrenschmidt
2008-10-17 5:21 ` Benjamin Herrenschmidt
2008-10-17 10:13 ` Olivier Galibert
2008-10-17 15:54 ` Linus Torvalds
2008-10-17 20:30 ` H. Peter Anvin
2008-10-17 20:54 ` Linus Torvalds
2008-10-17 21:03 ` Benjamin Herrenschmidt
2008-10-17 21:11 ` Linus Torvalds
2008-10-17 21:45 ` Benjamin Herrenschmidt
2008-10-20 3:37 ` Benjamin Herrenschmidt
2008-10-17 5:21 ` David Miller
2008-10-17 6:36 ` Benjamin Herrenschmidt
2008-10-17 6:39 ` H. Peter Anvin
2008-10-17 6:47 ` David Miller
2008-10-17 6:51 ` H. Peter Anvin
2008-10-17 15:51 ` Linus Torvalds
2008-10-17 20:06 ` David Miller
2008-10-17 4:05 ` Benjamin Herrenschmidt
2008-10-17 6:36 ` H. Peter Anvin
2008-10-17 3:39 ` Yinghai Lu
2008-10-17 3:46 ` Benjamin Herrenschmidt
2008-10-17 6:38 ` H. Peter Anvin [this message]
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