Commit-ID: 4fcab6693445cfb84f2b65868c58043535090e52 Gitweb: https://git.kernel.org/tip/4fcab6693445cfb84f2b65868c58043535090e52 Author: Dou Liyang <douly.f...@cn.fujitsu.com> AuthorDate: Mon, 4 Dec 2017 12:03:12 +0800 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Thu, 28 Dec 2017 12:32:06 +0100
x86/apic: Avoid wrong warning when parsing 'apic=' in X86-32 case There are two consumers of apic=: apic_set_verbosity() for setting the APIC debug level; parse_apic() for registering APIC driver by hand. X86-32 supports both of them, but sometimes, kernel issues a weird warning. eg: 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' ... Wrap the warning code in CONFIG_X86_64 case to avoid this. Signed-off-by: Dou Liyang <douly.f...@cn.fujitsu.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: pet...@infradead.org Cc: rdun...@infradead.org Cc: cor...@lwn.net Link: https://lkml.kernel.org/r/20171204040313.24824-1-douly.f...@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; }
