linux-kernel - Re: [PATCH] drm/radeon: Include swiotlb.h if SWIOTLB configured.

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Date:	Mon, 13 Aug 2012 09:50:19 +0200
From:	Paul Menzel <paulepanter@...rs.sourceforge.net>
To:	Huacai Chen <chenhuacai@...il.com>
Cc:	Michel Dänzer <michel@...nzer.net>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	Fuxin Zhang <zhangfx@...ote.com>,
	Huacai Chen <chenhc@...ote.com>,
	Hongliang Tao <taohl@...ote.com>, Hua Yan <yanh@...ote.com>
Subject: Re: [PATCH] drm/radeon: Include swiotlb.h if SWIOTLB configured.

Dear Huacai,


Am Montag, den 13.08.2012, 15:16 +0800 schrieb Huacai Chen:
> On Mon, Aug 13, 2012 at 3:00 PM, Paul Menzel wrote:

> > thanks for your patch.
> >
> > Firstly, is Chen your first or last name? If it is your first name, your
> > From address should be switched.
> Chen is may last name.

I am sorry then.

> > Am Montag, den 13.08.2012, 10:09 +0800 schrieb Huacai Chen:
> >> When SWIOTLB is configured, if without this patch kernel compilation
> >> fails.
> >
> > Secondly, could you please always paste part of the error message into
> > the commit message so that people hitting this problem and searching for
> > it on the WWW have a higher chance finding your patch.
> >
> OK, I'll paste error message.
> 
> > Thirdly, do you know why this was not caught beforehand and compilation
> > worked before?
> Maybe radeon is mostly used on X86 and swiotlb.h is included
> indirectly on X86 platform. This patch is split from my MIPS patchset,
> on MIPS machines compilation always failed.

Ah, I thought your patches had already been submitted.

> >> Signed-off-by: Huacai Chen <chenhc@...ote.com>
> >
> > Lastly, the addresses in your From line and Signed-off-by line disagree.
> > You can easily fix that, by adding
> My patch is generated by git format-patch and there is surely a From
> line in the beginning (from chenhc@...ote.com),

It should be `From: Huacai Chen <chenhc@...ote.com>`.

> but the mail is sent out by gmail, so I don't know how to make From
> line and Signed-off-by agree.

Do you copy the content of the file created by `git format-patch` into
the Gmail Web compositor?

If yes, just do not delete the `From` *and* `Date` lines from the
beginning as for example Alex Deucher is doing [1].

[…]


Thanks,

Paul


[1] http://lists.freedesktop.org/archives/dri-devel/2012-July/025200.html

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