* [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
@ 2013-03-14 3:44 Chen Gang
2013-03-14 3:46 ` Chen Gang
2013-03-14 13:25 ` Jonathan Austin
0 siblings, 2 replies; 6+ messages in thread
From: Chen Gang @ 2013-03-14 3:44 UTC (permalink / raw)
To: Russell King - ARM Linux, lorenzo.pieralisi, Santosh Shilimkar,
nico, catalin.marinas
Cc: linux-arm-kernel, linux-kernel
Hello Maintainers:
when use randconfig:
make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig
(and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set")
the error information:
arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中:
arch/arm/kernel/suspend.c:56:32: 错误:提领指向不完全类型的指针
arch/arm/kernel/suspend.c:70:3: 错误:隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration]
arch/arm/kernel/suspend.c:71:3: 错误:隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration]
arch/arm/kernel/suspend.c:72:3: 错误:隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration]
I want to be sure whether we can bear it ?
thanks.
--
Chen Gang
Asianux Corporation
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
2013-03-14 3:44 [Suggestion] Latest randconfig build errors for CONFIG_MMU=no Chen Gang
@ 2013-03-14 3:46 ` Chen Gang
2013-03-14 13:25 ` Jonathan Austin
1 sibling, 0 replies; 6+ messages in thread
From: Chen Gang @ 2013-03-14 3:46 UTC (permalink / raw)
To: Russell King - ARM Linux, lorenzo.pieralisi, Santosh Shilimkar,
nico, catalin.marinas
Cc: linux-arm-kernel, linux-kernel
also has additional information (maybe useful):
arch/arm/kernel/entry-armv.S:404:2: 警告:#warning "NPTL on non MMU needs fixing" [-Wcpp]
arch/arm/kernel/entry-armv.S:867:2: 警告:#warning "NPTL on non MMU needs fixing" [-Wcpp]
arch/arm/kernel/entry-armv.S:940:2: 警告:#warning "NPTL on non MMU needs fixing" [-Wcpp]
于 2013年03月14日 11:44, Chen Gang 写道:
> Hello Maintainers:
>
> when use randconfig:
> make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig
> (and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set")
>
> the error information:
> arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中:
> arch/arm/kernel/suspend.c:56:32: 错误:提领指向不完全类型的指针
> arch/arm/kernel/suspend.c:70:3: 错误:隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration]
> arch/arm/kernel/suspend.c:71:3: 错误:隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration]
> arch/arm/kernel/suspend.c:72:3: 错误:隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration]
>
> I want to be sure whether we can bear it ?
>
> thanks.
>
--
Chen Gang
Asianux Corporation
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
2013-03-14 3:44 [Suggestion] Latest randconfig build errors for CONFIG_MMU=no Chen Gang
2013-03-14 3:46 ` Chen Gang
@ 2013-03-14 13:25 ` Jonathan Austin
2013-03-15 0:51 ` Chen Gang
2013-03-17 14:40 ` Will Deacon
1 sibling, 2 replies; 6+ messages in thread
From: Jonathan Austin @ 2013-03-14 13:25 UTC (permalink / raw)
To: Chen Gang
Cc: Russell King - ARM Linux, Lorenzo Pieralisi, Santosh Shilimkar,
nico, Catalin Marinas, linux-kernel, linux-arm-kernel,
Will Deacon
Hi Chen,
On 14/03/13 03:44, Chen Gang wrote:
> Hello Maintainers:
>
> when use randconfig:
> make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig
> (and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set")
>
> the error information:
> arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中:
> arch/arm/kernel/suspend.c:56:32: 错误:提领指向不完全类型的指针
> arch/arm/kernel/suspend.c:70:3: 错误:隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration]
> arch/arm/kernel/suspend.c:71:3: 错误:隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration]
> arch/arm/kernel/suspend.c:72:3: 错误:隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration]
>
> I want to be sure whether we can bear it ?
>
You're right that at the moment that suspend code is broken for NOMMU.
However, Will Deacon has a patch to fix it in his nommu branch on
kernel.org:
https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=nommu
I'll let Will comment on how/when he might look at proposing that code
to be merged.
Jonny
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
2013-03-14 13:25 ` Jonathan Austin
@ 2013-03-15 0:51 ` Chen Gang
2013-03-17 14:40 ` Will Deacon
1 sibling, 0 replies; 6+ messages in thread
From: Chen Gang @ 2013-03-15 0:51 UTC (permalink / raw)
To: Jonathan Austin
Cc: Russell King - ARM Linux, Lorenzo Pieralisi, Santosh Shilimkar,
nico, Catalin Marinas, linux-kernel, linux-arm-kernel,
Will Deacon
于 2013年03月14日 21:25, Jonathan Austin 写道:
>
> You're right that at the moment that suspend code is broken for NOMMU.
>
> However, Will Deacon has a patch to fix it in his nommu branch on
> kernel.org:
>
> https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=nommu
>
> I'll let Will comment on how/when he might look at proposing that code
> to be merged.
>
> Jonny
thank you.
:-)
--
Chen Gang
Asianux Corporation
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
2013-03-14 13:25 ` Jonathan Austin
2013-03-15 0:51 ` Chen Gang
@ 2013-03-17 14:40 ` Will Deacon
2013-03-18 1:41 ` Chen Gang
1 sibling, 1 reply; 6+ messages in thread
From: Will Deacon @ 2013-03-17 14:40 UTC (permalink / raw)
To: Jonathan Austin
Cc: Chen Gang, Russell King - ARM Linux, Lorenzo Pieralisi,
Santosh Shilimkar, nico, Catalin Marinas, linux-kernel,
linux-arm-kernel
On Thu, Mar 14, 2013 at 01:25:56PM +0000, Jonathan Austin wrote:
> On 14/03/13 03:44, Chen Gang wrote:
> > Hello Maintainers:
> >
> > when use randconfig:
> > make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig
> > (and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set")
> >
> > the error information:
> > arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中:
> > arch/arm/kernel/suspend.c:56:32: 错误:提领指向不完全类型的指针
> > arch/arm/kernel/suspend.c:70:3: 错误:隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration]
> > arch/arm/kernel/suspend.c:71:3: 错误:隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration]
> > arch/arm/kernel/suspend.c:72:3: 错误:隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration]
> >
> > I want to be sure whether we can bear it ?
> >
>
> You're right that at the moment that suspend code is broken for NOMMU.
>
> However, Will Deacon has a patch to fix it in his nommu branch on
> kernel.org:
>
> https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=nommu
>
> I'll let Will comment on how/when he might look at proposing that code
> to be merged.
I can probably bring that up to speed with -rc2 if people are interested.
The tricky part is testing -- I used a software model that had a magic
control block for killing off CPUs when I wrote this originally.
Will
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no
2013-03-17 14:40 ` Will Deacon
@ 2013-03-18 1:41 ` Chen Gang
0 siblings, 0 replies; 6+ messages in thread
From: Chen Gang @ 2013-03-18 1:41 UTC (permalink / raw)
To: Will Deacon
Cc: Jonathan Austin, Russell King - ARM Linux, Lorenzo Pieralisi,
Santosh Shilimkar, nico, Catalin Marinas, linux-kernel,
linux-arm-kernel
On 2013年03月17日 22:40, Will Deacon wrote:
> I can probably bring that up to speed with -rc2 if people are interested.
> The tricky part is testing -- I used a software model that had a magic
> control block for killing off CPUs when I wrote this originally.
excuse me, I am not familiar with ARM, so can not provide more ideas.
but at least for me, I think what you said seems valuable.
welcome any ARM experts to reply.
thanks.
:-)
--
Chen Gang
Asianux Corporation
^ permalink raw reply [flat|nested] 6+ messages in thread
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2013-03-14 3:44 [Suggestion] Latest randconfig build errors for CONFIG_MMU=no Chen Gang
2013-03-14 3:46 ` Chen Gang
2013-03-14 13:25 ` Jonathan Austin
2013-03-15 0:51 ` Chen Gang
2013-03-17 14:40 ` Will Deacon
2013-03-18 1:41 ` Chen Gang
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