From: Paul Mackerras <paulus@samba.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Ken Chen <kenchen@google.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-next@vger.kernel.org
Subject: Re: linux-next: sched tree build warning
Date: Mon, 22 Dec 2008 19:14:48 +1100 [thread overview]
Message-ID: <18767.19576.286910.148623@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20081222070426.GD29160@elte.hu>
Ingo Molnar writes:
> the real solution is something like the patch below. That generates new
> (but harmless) warnings within the powerpc code but those are a one-off
> effort to fix and are not reoccuring.
>
> Cc:-ed Paul Mackerras - Paul, am i missing anything?
That does change the formal types of things exported to userland, and
hence technically breaks the ABI, which is why I am cautious about
this idea. Whether or not that causes real problems in practice I'm
not sure, but I would want to at least check with the glibc developers
first.
One solution to might be to use an #ifdef __KERNEL__ so that userland
still sees the long types but kernel code sees long longs.
Paul.
next prev parent reply other threads:[~2008-12-22 8:14 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-22 4:22 linux-next: sched tree build warning Stephen Rothwell
2008-12-22 6:47 ` Ingo Molnar
2008-12-22 6:49 ` Ken Chen
2008-12-22 7:04 ` Ingo Molnar
2008-12-22 7:19 ` Stephen Rothwell
2008-12-22 8:03 ` [patch] powerpc: change u64/s64 to a long long integer type Ingo Molnar
2008-12-22 22:43 ` Andrew Morton
2008-12-22 23:00 ` Sam Ravnborg
2008-12-22 23:03 ` H. Peter Anvin
2008-12-22 23:13 ` Sam Ravnborg
2008-12-22 23:13 ` Andrew Morton
2008-12-23 13:17 ` [PATCH] sparc64: use unsigned long long for u64 Sam Ravnborg
2008-12-23 14:42 ` [PATCH] sparc64: fix unsigned long long warnings in drivers Sam Ravnborg
2008-12-23 17:05 ` [PATCH] sparc64: use unsigned long long for u64 Ken Chen
2008-12-23 17:26 ` Sam Ravnborg
2008-12-23 17:29 ` Ken Chen
2008-12-23 17:34 ` Sam Ravnborg
2008-12-27 8:54 ` David Miller
2008-12-27 9:24 ` Sam Ravnborg
2008-12-27 9:37 ` David Miller
2008-12-27 9:49 ` Sam Ravnborg
2008-12-28 4:25 ` David Miller
2008-12-28 12:32 ` Sam Ravnborg
2008-12-31 4:40 ` [patch] powerpc: change u64/s64 to a long long integer type Stephen Rothwell
2008-12-31 7:52 ` Ingo Molnar
2008-12-22 8:14 ` Paul Mackerras [this message]
2008-12-22 8:18 ` linux-next: sched tree build warning Ingo Molnar
2008-12-22 9:44 ` Paul Mackerras
2008-12-22 10:53 ` Ingo Molnar
2008-12-22 12:03 ` Paul Mackerras
2009-04-21 0:27 Stephen Rothwell
2009-04-21 3:10 ` Gautham R Shenoy
2009-04-21 3:28 ` Stephen Rothwell
2009-04-21 6:09 ` Ingo Molnar
2009-04-21 6:21 ` Rusty Russell
2009-05-07 1:21 Stephen Rothwell
2009-05-07 6:45 ` David Rientjes
2009-05-07 7:39 ` Ingo Molnar
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