Re: linux-next: Tree for Mar 20 (vmcore)

From: David Rientjes
Date: Wed Mar 20 2013 - 14:56:08 EST

On Wed, 20 Mar 2013, Randy Dunlap wrote:

> on x86_64:
> fs/proc/vmcore.c: In function 'merge_note_headers_elf64':
> fs/proc/vmcore.c:349:22: error: 'VMCOREINFO_NOTE_NAME' undeclared (first use in this function)
> fs/proc/vmcore.c:349:22: note: each undeclared identifier is reported only once for each function it appears in
> fs/proc/vmcore.c: In function 'merge_note_headers_elf32':
> fs/proc/vmcore.c:470:22: error: 'VMCOREINFO_NOTE_NAME' undeclared (first use in this function)
> make[3]: *** [fs/proc/vmcore.o] Error 1
> Needs to #include <linux/kexec.h>

I don't think that's it, linux/kexec.h already gets included indirectly.
The problem is that CONFIG_KEXEC isn't set so the definition in kexec.h is

This comes from "vmcore: check NT_VMCORE_PAD as a mark indicating the end
of ELF note buffer" merged through the -mm tree. I've added the patch's
author and Andrew to the cc.

How can this be protected by CONFIG_KEXEC?
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