From 44009105081b51417f311f4c3be0061870b6b8ed Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 10 Oct 2012 10:18:35 +0300 Subject: [PATCH] oprofile, x86: Fix wrapping bug in op_x86_get_ctrl() The "event" variable is a u16 so the shift will always wrap to zero making the line a no-op. Signed-off-by: Dan Carpenter Cc: v2.6.32.. Signed-off-by: Robert Richter --- arch/x86/oprofile/nmi_int.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 26b8a8514ee5..48768df2471a 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -55,7 +55,7 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model, val |= counter_config->extra; event &= model->event_mask ? model->event_mask : 0xFF; val |= event & 0xFF; - val |= (event & 0x0F00) << 24; + val |= (u64)(event & 0x0F00) << 24; return val; } -- 2.30.2