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authorAndy Lutomirski <luto@kernel.org>2015-06-25 18:43:55 +0200
committerIngo Molnar <mingo@kernel.org>2015-07-06 15:23:25 +0200
commitc6e5ca35c4685cd920b1d5279dbc9f4483d7dfd4 (patch)
treed252a703a8573bbaadb1cef4ed0a1f477a6710ca /arch/x86/kernel/apb_timer.c
parentc73e36b775a777abd67a1e15481923fcbd2040e1 (diff)
x86/asm/tsc: Inline native_read_tsc() and remove __native_read_tsc()
In the following commit: cdc7957d1954 ("x86: move native_read_tsc() offline") ... native_read_tsc() was moved out of line, presumably for some now-obsolete vDSO-related reason. Undo it. The entire rdtsc, shl, or sequence is only 11 bytes, and calls via rdtscl() and similar helpers were already inlined. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Huang Rui <ray.huang@amd.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Len Brown <lenb@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kvm ML <kvm@vger.kernel.org> Link: http://lkml.kernel.org/r/d05ffe2aaf8468ca475ebc00efad7b2fa174af19.1434501121.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apb_timer.c')
-rw-r--r--arch/x86/kernel/apb_timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index ede92c3364d3..9fe111cc50f8 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -390,13 +390,13 @@ unsigned long apbt_quick_calibrate(void)
old = dw_apb_clocksource_read(clocksource_apbt);
old += loop;
- t1 = __native_read_tsc();
+ t1 = native_read_tsc();
do {
new = dw_apb_clocksource_read(clocksource_apbt);
} while (new < old);
- t2 = __native_read_tsc();
+ t2 = native_read_tsc();
shift = 5;
if (unlikely(loop >> shift == 0)) {