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authorThomas Gleixner <tglx@linutronix.de>2008-07-15 16:08:04 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-07-15 16:46:47 -0400
commit431ceb83f703a343bdd14350480a2224fa4bfedf (patch)
tree2f4644aec0d326e23327ed2297a4a4f52b1d830e /arch
parentb9d2252c1e44fa83a4e65fdc9eb93db6297c55af (diff)
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 <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/tsc.c2
1 files changed, 2 insertions, 0 deletions
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)
358 ret : clocksource_tsc.cycle_last; 358 ret : clocksource_tsc.cycle_last;
359} 359}
360 360
361#ifdef CONFIG_X86_64
361static cycle_t __vsyscall_fn vread_tsc(void) 362static cycle_t __vsyscall_fn vread_tsc(void)
362{ 363{
363 cycle_t ret = (cycle_t)vget_cycles(); 364 cycle_t ret = (cycle_t)vget_cycles();
@@ -365,6 +366,7 @@ static cycle_t __vsyscall_fn vread_tsc(void)
365 return ret >= __vsyscall_gtod_data.clock.cycle_last ? 366 return ret >= __vsyscall_gtod_data.clock.cycle_last ?
366 ret : __vsyscall_gtod_data.clock.cycle_last; 367 ret : __vsyscall_gtod_data.clock.cycle_last;
367} 368}
369#endif
368 370
369static struct clocksource clocksource_tsc = { 371static struct clocksource clocksource_tsc = {
370 .name = "tsc", 372 .name = "tsc",