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Date: Mon, 28 Dec 2015 15:07:35 +0800 From: yalin wang <yalin.wang2010@...il.com> To: linux@....linux.org.uk, tixy@...aro.org, wangnan0@...wei.com, masami.hiramatsu.pt@...achi.com, yalin.wang2010@...il.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [RFC] arm: change to use generic sign_extend32() function change to use generic sign_extend32() to caaculate branch_displacement. Signed-off-by: yalin wang <yalin.wang2010@...il.com> --- 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 <linux/module.h> #include <linux/stddef.h> #include <linux/ptrace.h> +#include <linux/bitops.h> #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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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