x86: fix VisualWS and Voyager kexec build failures
authorRandy Dunlap <randy.dunlap@oracle.com>
Tue, 1 Apr 2008 22:44:01 +0000 (15:44 -0700)
committerIngo Molnar <mingo@elte.hu>
Thu, 17 Apr 2008 15:41:34 +0000 (17:41 +0200)
without this patch:

VOYAGER:
kernel/built-in.o: In function `crash_kexec':
(.text+0x28588): undefined reference to `machine_crash_shutdown'

VISWS:
kernel/built-in.o: In function `crash_kexec':
/next-20080401/kernel/kexec.c:1074: undefined reference to `machine_crash_shutdown'
make[1]: *** [.tmp_vmlinux1] Error 1

because arch/x86/kernel/reboot.c isn't built since CONFIG_X86_BIOS_REBOOT=n,
so machine_crash_shutdown() isn't available.

This patch does seem a small bit odd since the KEXEC help text says that
kexec is independent of the system firmware.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/Kconfig

index a0d7406e8b37e8f6ab829fa166d6e419c4adafdd..0a7193ae45edb57cd0036cfbded29cad225b3878 100644 (file)
@@ -1121,6 +1121,7 @@ source kernel/Kconfig.hz
 
 config KEXEC
        bool "kexec system call"
+       depends on X86_64 || X86_BIOS_REBOOT
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot