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

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Message-ID: <20070301125736.GA18853@strauss.suse.de>
Date:	Thu, 1 Mar 2007 13:57:36 +0100
From:	Bernhard Walle <bwalle@...e.de>
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

* 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.

---
 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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