arm64: vdso: fix clocksource mask when extracting bottom 56 bits

[~andy/linux] / arch / arm64 / kernel / vdso / gettimeofday.S

diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S
index dcb8c203a3b26ee85296be9f5142e7f3fca2629b..05c1229a2874642059e972adeeede300298bb875 100644 (file)
--- a/arch/arm64/kernel/vdso/gettimeofday.S
+++ b/arch/arm64/kernel/vdso/gettimeofday.S
@@ -223,7 +223,7 @@ ENTRY(__do_get_tspec)
        /* Calculate cycle delta and convert to ns. */
        sub     x10, x9, x10
        /* We can only guarantee 56 bits of precision. */
-       movn    x9, #0xff0, lsl #48
+       movn    x9, #0xff00, lsl #48
        and     x10, x9, x10
        mul     x10, x10, x14
        lsr     x10, x10, x15