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x86: use BUILD_BUG_ON() for the size of struct intel_mp_floating

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Use BUILD_BUG_ON() instead of compile-time error technique with
extern non-exsistent function.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Akinobu Mita 2008-04-19 23:55:11 +09:00 committed by Ingo Molnar
parent 562b80baff
commit 5d47a271f3
1 changed files with 1 additions and 3 deletions
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4
arch/x86/kernel/mpparse.c
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@ -686,13 +686,11 @@ void __init get_smp_config(void)
static int __init smp_scan_config(unsigned long base, unsigned long length,
unsigned reserve)
{
extern void __bad_mpf_size(void);
unsigned int *bp = phys_to_virt(base);
struct intel_mp_floating *mpf;
Dprintk("Scan SMP from %p for %ld bytes.\n", bp, length);
if (sizeof(*mpf) != 16)
__bad_mpf_size();
BUILD_BUG_ON(sizeof(*mpf) != 16);
while (length > 0) {
mpf = (struct intel_mp_floating *)bp;