From 431ceb83f703a343bdd14350480a2224fa4bfedf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 15 Jul 2008 22:08:04 +0200 Subject: [PATCH] x86: fix TSC build error on 32bit Dave Hansen reported a build error on 32bit which went unnoticed as newer gcc versions seem to optimize unused static functions away before compiling them. Make vread_tsc() depend on CONFIG_X86_64 Signed-off-by: Thomas Gleixner --- arch/x86/kernel/tsc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 3c36f92160c9..7603c0553909 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -358,6 +358,7 @@ static cycle_t read_tsc(void) ret : clocksource_tsc.cycle_last; } +#ifdef CONFIG_X86_64 static cycle_t __vsyscall_fn vread_tsc(void) { cycle_t ret = (cycle_t)vget_cycles(); @@ -365,6 +366,7 @@ static cycle_t __vsyscall_fn vread_tsc(void) return ret >= __vsyscall_gtod_data.clock.cycle_last ? ret : __vsyscall_gtod_data.clock.cycle_last; } +#endif static struct clocksource clocksource_tsc = { .name = "tsc", -- 2.20.1