From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@ozlabs.org, linux-mm@kvack.org,
Paul Mackerras <paulus@samba.org>,
aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [PATCH] powerpc/mm: Always use STRICT_MM_TYPECHECKS
Date: Thu, 21 Apr 2016 11:56:21 +0200 [thread overview]
Message-ID: <4231376.YDJ7xlGR0L@wuerfel> (raw)
In-Reply-To: <1461209879-15044-1-git-send-email-mpe@ellerman.id.au>
On Thursday 21 April 2016 13:37:59 Michael Ellerman wrote:
> Testing done by Paul Mackerras has shown that with a modern compiler
> there is no negative effect on code generation from enabling
> STRICT_MM_TYPECHECKS.
>
> So remove the option, and always use the strict type definitions.
>
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
>
I recently ran into the same thing on ARM and have checked the history
on the symbol. It seems that some architectures cannot pass structures
in registers as function arguments, but powerpc can, so it was never
needed in the first place.
Arnd
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next prev parent reply other threads:[~2016-04-21 9:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 3:37 Michael Ellerman
2016-04-21 4:15 ` Balbir Singh
2016-04-21 6:36 ` Michael Ellerman
2016-04-21 9:56 ` Arnd Bergmann [this message]
2016-04-28 5:27 ` Michael Ellerman
2016-04-28 5:13 ` Paul Mackerras
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