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Subject[PATCH 1/3] x86/apic: Avoid wrong warning when parsing 'apic=' in X86-32 case.
Date
There are two consumers of apic=:
apic_set_verbosity() for setting the APIC debug level;
parse_apic() for registering APIC driver by hand.

In X86-32 arch, when kernel was booted up with 'apic=bigsmp' in command
line, early_param would warn like that:

...
[ 0.000000] APIC Verbosity level bigsmp not recognised use apic=verbose or apic=debug
[ 0.000000] Malformed early option 'apic'
...

This is a mistake and noise.

Wrap the warning code in CONFIG_X86_64 case to avoid this.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
---
arch/x86/kernel/apic/apic.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 6e272f3..880441f 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2626,11 +2626,13 @@ static int __init apic_set_verbosity(char *arg)
apic_verbosity = APIC_DEBUG;
else if (strcmp("verbose", arg) == 0)
apic_verbosity = APIC_VERBOSE;
+#ifdef CONFIG_X86_64
else {
pr_warning("APIC Verbosity level %s not recognised"
" use apic=verbose or apic=debug\n", arg);
return -EINVAL;
}
+#endif

return 0;
}
--
2.5.5


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