[PATCH] lguest: fix undefined asm-offsets symbols

[Kyle McMartin]

lguest uses asm-offsets to generate ... offsets, obviously, for use
in the lguest switcher code. When the hypervisor code is built as a
module though, the asm offsets it needs won't be generated since
CONFIG_LGUEST will be undefined.

Signed-off-by: Kyle McMartin

---
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index a33d530..44bafdd 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -134,7 +134,7 @@ void foo(void)
    OFFSET(LGUEST_DATA_pgdir, lguest_data, pgdir);
 #endif

-#ifdef CONFIG_LGUEST
+#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_MODULE)
    BLANK();
    OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
    OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);

[Rusty Russell]

On Thursday 21 February 2008 07:21:52 Kyle McMartin wrote:
> lguest uses asm-offsets to generate ... offsets, obviously, for use
> in the lguest switcher code. When the hypervisor code is built as a
> module though, the asm offsets it needs won't be generated since
> CONFIG_LGUEST will be undefined.
>
> Signed-off-by: Kyle McMartin

Thanks Kyle,

This is in Linus' tree now thanks to Ingo.  I had a slightly different fix 
which I mistakenly hadn't pushed, but this works fine.

Cheers,
Rusty.