linux-kernel - [PATCH AUTOSEL 4.19 238/671] x86/mm: Remove unused variable 'cpu'

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Date:   Thu, 16 Jan 2020 11:52:27 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Qian Cai <cai@....pw>, Thomas Gleixner <tglx@...utronix.de>,
        Andyt Lutomirski <luto@...nel.org>,
        dave.hansen@...ux.intel.com, peterz@...radead.org, bp@...en8.de,
        hpa@...or.com, Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.19 238/671] x86/mm: Remove unused variable 'cpu'

From: Qian Cai <cai@....pw>

[ Upstream commit 3609e31bc8dc03b701390f79c74fc7fe92b95039 ]

The commit a2055abe9c67 ("x86/mm: Pass flush_tlb_info to
flush_tlb_others() etc") removed the unnecessary cpu parameter from
uv_flush_tlb_others() but left an unused variable.

arch/x86/mm/tlb.c: In function 'native_flush_tlb_others':
arch/x86/mm/tlb.c:688:16: warning: variable 'cpu' set but not used
[-Wunused-but-set-variable]
   unsigned int cpu;
                ^~~

Fixes: a2055abe9c67 ("x86/mm: Pass flush_tlb_info to flush_tlb_others() etc")
Signed-off-by: Qian Cai <cai@....pw>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Andyt Lutomirski <luto@...nel.org>
Cc: dave.hansen@...ux.intel.com
Cc: peterz@...radead.org
Cc: bp@...en8.de
Cc: hpa@...or.com
Link: https://lkml.kernel.org/r/20190228220155.88124-1-cai@lca.pw
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/x86/mm/tlb.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index a6836ab0fcc7..b72296bd04a2 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -664,9 +664,6 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
 		 * that UV should be updated so that smp_call_function_many(),
 		 * etc, are optimal on UV.
 		 */
-		unsigned int cpu;
-
-		cpu = smp_processor_id();
 		cpumask = uv_flush_tlb_others(cpumask, info);
 		if (cpumask)
 			smp_call_function_many(cpumask, flush_tlb_func_remote,
-- 
2.20.1