linux-kernel - [PATCH AUTOSEL 4.9 07/18] MIPS: uprobes: remove set but not used variable 'epc'

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Message-Id: <20190614203037.27910-7-sashal@kernel.org>
Date:   Fri, 14 Jun 2019 16:30:23 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     YueHaibing <yuehaibing@...wei.com>,
        Paul Burton <paul.burton@...s.com>, ralf@...ux-mips.org,
        jhogan@...nel.org, linux-mips@...r.kernel.org,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.9 07/18] MIPS: uprobes: remove set but not used variable 'epc'

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit f532beeeff0c0a3586cc15538bc52d249eb19e7c ]

Fixes gcc '-Wunused-but-set-variable' warning:

arch/mips/kernel/uprobes.c: In function 'arch_uprobe_pre_xol':
arch/mips/kernel/uprobes.c:115:17: warning: variable 'epc' set but not used [-Wunused-but-set-variable]

It's never used since introduction in
commit 40e084a506eb ("MIPS: Add uprobes support.")

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Signed-off-by: Paul Burton <paul.burton@...s.com>
Cc: <ralf@...ux-mips.org>
Cc: <jhogan@...nel.org>
Cc: <linux-kernel@...r.kernel.org>
Cc: <linux-mips@...r.kernel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/mips/kernel/uprobes.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index dbb917403131..ec951dde0999 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -111,9 +111,6 @@ int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs)
 	 */
 	aup->resume_epc = regs->cp0_epc + 4;
 	if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) {
-		unsigned long epc;
-
-		epc = regs->cp0_epc;
 		__compute_return_epc_for_insn(regs,
 			(union mips_instruction) aup->insn[0]);
 		aup->resume_epc = regs->cp0_epc;
-- 
2.20.1