linux-kernel - [PATCH -next] MIPS: uprobes: remove set but not used variable 'epc'

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Message-ID: <20190525122024.4908-1-yuehaibing@huawei.com>
Date:   Sat, 25 May 2019 20:20:24 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <ralf@...ux-mips.org>, <paul.burton@...s.com>, <jhogan@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-mips@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] MIPS: uprobes: remove set but not used variable 'epc'

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>
---
 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 4aaff3b3175c..6dbe4eab0a0e 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -112,9 +112,6 @@ 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;
-- 
2.17.1