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Old 06-09-2010, 08:45 AM
Ike Panhc
 
Default UBUNTU: SAUCE: Fix compile error on arch/x86/lguest/boot.c

Sorry for sent an empty subject mail. Fix it with this one.

On 06/09/2010 04:35 PM, Ike Panhc wrote:
> This patch is going to fix the compile error on Hardy netbook-lpia branch after
> rebase the lastest Hardy master branch.
>
> Though CONFIG_LGUEST_GUEST is not set on Hardy master branch, it is still good
> for a fix if someone want to enable this config with Hardy master branch and
> compile his own kernel.
>
> Please ACK/NAK for Hardy netbook-lpia branch and master branch.
>
>
> ======== 8< ========
> The following changes since commit f939e8b6e0f2e9bdc3c7f0fdea1721ab234b7fb1:
> Ike Panhc (1):
> UBUNTU: Rebased to 2.6.24-28.70
>
> are available in the git repository at:
>
> git://kernel.ubuntu.com/ikepanhc/hardy-kernel/.git fix-netbook-lpia
>
> Ike Panhc (1):
> UBUNTU: SAUCE: Fix compile error on arch/x86/lguest/boot.c
>
> arch/x86/lguest/boot.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
>
> ======== 8< ========
> From c7919f4207dfe63b28bc1a74b3525d6ddf492996 Mon Sep 17 00:00:00 2001
> From: Ike Panhc <ike.pan@canonical.com>
> Date: Wed, 9 Jun 2010 15:33:44 +0800
> Subject: [PATCH] UBUNTU: SAUCE: Fix compile error on arch/x86/lguest/boot.c
>
> IMPACT:
>
> Commit 434e71 'virtio: explicit advertisement of driver features' which add a
> new inline function virtio_has_feature() in include/linux/virtio_config.h
> causes compile failed when CONFIG_LGUEST_GUEST=y.
>
> In virtio_config.h:91, variable features in 'struct virtio_device' is called
> for test_bit. Without including linux/virtio.h in arch/x86/lguest/boot.c, when
> 'CC arch/x86/lguest/boot.c', compiler do not know what is 'struct virtio_device'
> and return with error.
>
> Ubuntu-hardy master branch do not affected because CONFIG_LGUEST_GUEST is not
> set.
>
> FIX:
>
> Upstream has the fix with change config from little-endian only to guest endian
> (commit 72e61e). Since netbook-lpia branch is little-endian only, adding header
> file for lguest seems a simpler and better solution. This patch is going to add
> '#include <linux/virtio.h>' before virtio_console.h in arch/x86/lguest/boot.c
>
> TEST:
>
> Build successfully after this patch added.
>
> Signed-off-by: Ike Panhc <ike.pan@canonical.com>
> ---
> arch/x86/lguest/boot.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
> index d6b18e2..bc8e0df 100644
> --- a/arch/x86/lguest/boot.c
> +++ b/arch/x86/lguest/boot.c
> @@ -55,6 +55,7 @@
> #include <linux/clockchips.h>
> #include <linux/lguest.h>
> #include <linux/lguest_launcher.h>
> +#include <linux/virtio.h>
> #include <linux/virtio_console.h>
> #include <linux/pm.h>
> #include <asm/paravirt.h>


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Old 06-09-2010, 09:05 AM
Ike Panhc
 
Default UBUNTU: SAUCE: Fix compile error on arch/x86/lguest/boot.c

On 06/09/2010 04:51 PM, Eric Miao wrote:
> On Wed, Jun 9, 2010 at 4:35 PM, Ike Panhc <ike.pan@canonical.com> wrote:
>> This patch is going to fix the compile error on Hardy netbook-lpia branch after
>> rebase the lastest Hardy master branch.
>>
>> Though CONFIG_LGUEST_GUEST is not set on Hardy master branch, it is still good
>> for a fix if someone want to enable this config with Hardy master branch and
>> compile his own kernel.
>>
>> Please ACK/NAK for Hardy netbook-lpia branch and master branch.
>>
>
> Simple enough and green light on this. Yet I'm wondering if the
> upstream version is simple enough as well, so that we don't need
> to maintain two fixes to a same issue?

The upstream fix (comment 72e61eb40b55dd57031ec5971e810649f82b0259 upstream)
is 21 lines added and 36 lines removed. I think it is not a small patch.

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