linux-kernel - Re: [PATCH 4/5] drivers/pci/pci.c Section mismatch

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Date:	Fri, 19 Mar 2010 01:19:44 +0100
From:	René Bolldorf <xsecute@...glemail.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	linux-kernel@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH 4/5] drivers/pci/pci.c Section mismatch

On 03/19/10 00:37, Randy Dunlap wrote:
> On 03/18/10 16:34, René Bolldorf wrote:
>> On 03/18/10 23:58, Randy Dunlap wrote:
>>> On 03/18/10 15:08, Ren� Bolldorf wrote:
>>>> Signed-off-by: Rene Bolldorf<xsecute@...glemail.com>
>>>>
>>>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
>>>> index ddd55dc..a1f7d93 100644
>>>> --- a/drivers/pci/pci.c
>>>> +++ b/drivers/pci/pci.c
>>>> @@ -2773,7 +2773,7 @@ int pci_resource_bar(struct pci_dev *dev, int
>>>> resno, enum pci_bar_type *type)
>>>>    /* Some architectures require additional programming to enable VGA */
>>>>    static arch_set_vga_state_t arch_set_vga_state;
>>>>
>>>> -void __init pci_register_set_vga_state(arch_set_vga_state_t func)
>>>> +void pci_register_set_vga_state(arch_set_vga_state_t func)
>>>>    {
>>>>        arch_set_vga_state = func;    /* NULL disables */
>>>>    }
>>>> --
>>>
>>> Hi,
>>>
>>> Please put the offending/warning messages in the patch description.
>>> Include your analysis if it isn't obvious.
>>>
>>> thanks,
>>
>> Hi,
>>
>> the warning message was:
>> WARNING: drivers/pci/built-in.o(__ksymtab+0x190): Section mismatch in
>> reference from the variable __ksymtab_pci_register_set_vga_state to the
>> function .init.text:pci_register_set_vga_state()
>> The symbol pci_register_set_vga_state is exported and annotated __init
>> Fix this by removing the __init annotation of pci_register_set_vga_state
>> or drop the export.
>>
>> $fgrep "pci_register_set_vga_state" `find .`
>>
>> $./arch/x86/kernel/apic/x2apic_uv_x.c:
>> pci_register_set_vga_state(uv_set_vga_state);
>> $./include/linux/pci.h:extern void
>> pci_register_set_vga_state(arch_set_vga_state_t func);
>> $./drivers/pci/pci.c:void
>> pci_register_set_vga_state(arch_set_vga_state_t func)
>> $./drivers/pci/pci.c:EXPORT_SYMBOL(pci_register_set_vga_state);
>>
>> this is a volatile function that set's a spec. state and is only used
>> from uv_system_init(arch/x86/kernel/apic/x2apic_uv_x.c), the macro can
>> also be removed.
>
> Thanks.  Yes, we shouldn't export __init functions, so the patch makes
> sense.
>
> BTW, you need to cc: one or more maintainers so that someone will merge
> your patches.  They don't scan the mailing lists looking for patches to merge.
>
>

Added Cc.
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