From mboxrd@z Thu Jan 1 00:00:00 1970 From: yalin.wang2010@gmail.com (yalin wang) Date: Mon, 28 Dec 2015 15:07:35 +0800 Subject: [RFC] arm: change to use generic sign_extend32() function Message-ID: <1451286455-13121-1-git-send-email-yalin.wang2010@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org change to use generic sign_extend32() to caaculate branch_displacement. Signed-off-by: yalin wang --- arch/arm/probes/decode-arm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm/probes/decode-arm.c b/arch/arm/probes/decode-arm.c index f72c33a..ff794c0 100644 --- a/arch/arm/probes/decode-arm.c +++ b/arch/arm/probes/decode-arm.c @@ -20,13 +20,12 @@ #include #include #include +#include #include "decode.h" #include "decode-arm.h" -#define sign_extend(x, signbit) ((x) | (0 - ((x) & (1 << (signbit))))) - -#define branch_displacement(insn) sign_extend(((insn) & 0xffffff) << 2, 25) +#define branch_displacement(insn) sign_extend32(((insn) & 0xffffff) << 2, 25) /* * To avoid the complications of mimicing single-stepping on a -- 1.9.1