linux-kernel - Re: [Fastboot] [PATCH 1/1] - platform_kernel_launch

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Date:	Mon, 05 Mar 2007 18:40:54 -0800
From:	Jay Lan <jlan@....com>
To:	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [Fastboot] [PATCH 1/1] - platform_kernel_launch_event is noop
 on generic kernel

Bernhard Walle wrote:
> * Bernhard Walle <bwalle@...e.de> [2007-03-01 13:57]:
>> * Horms <horms@...ge.net.au> [2007-03-01 05:22]:
>>> On Wed, Feb 28, 2007 at 01:45:17PM -0600, John Keller wrote:
>>>> Add a missing #define for the platform_kernel_launch_event.
>>>> Without this fix, a call to platform_kernel_launch_event()
>>>> becomes a noop on generic kernels. SN systems require this
>>>> fix to successfully kdump/kexec from certain hardware errors.
>>>>
>>>> Signed-off-by: John Keller <jpk@....com>
>>> I made a similar change when porting to xen, but I hadn't thought
>>> to see if mainline linux needs it to.
>>>
>>> Acked-by: Simon Horman <horms@...ge.net.au>
>> I think there's an additional change needed. Without that, it leads to
>> a NULL pointer dereference.

Yep, it is needed. The missing line was in Jack's original patch
but was lost somehow in 2.6.20.

Acked-by: Jay Lan <jlan@....com>

> 
> Maybe I should also get my editor right ... ;):
> 
> ---
>  include/asm-ia64/machvec.h |    2 ++
>  1 file changed, 2 insertions(+)
> 
> Index: b/include/asm-ia64/machvec.h
> ===================================================================
> --- a/include/asm-ia64/machvec.h
> +++ b/include/asm-ia64/machvec.h
> @@ -168,6 +168,7 @@ extern void machvec_tlb_migrate_finish (
>  #  define platform_setup_msi_irq	ia64_mv.setup_msi_irq
>  #  define platform_teardown_msi_irq	ia64_mv.teardown_msi_irq
>  #  define platform_pci_fixup_bus	ia64_mv.pci_fixup_bus
> +#  define platform_kernel_launch_event	ia64_mv.kernel_launch_event
>  # endif
>  
>  /* __attribute__((__aligned__(16))) is required to make size of the
> @@ -269,6 +270,7 @@ struct ia64_machine_vector {
>  	platform_setup_msi_irq,			\
>  	platform_teardown_msi_irq,		\
>  	platform_pci_fixup_bus,			\
> +	platform_kernel_launch_event            \
>  }
>  
>  extern struct ia64_machine_vector ia64_mv;
> -
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