linux-kernel - [PATCH] x86/intel_cacheinfo: remove redundant assignment to this

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Message-Id: <20171015160203.12332-1-colin.king@canonical.com>
Date:   Sun, 15 Oct 2017 17:02:03 +0100
From:   Colin King <colin.king@...onical.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86/intel_cacheinfo: remove redundant assignment to this_leaf

From: Colin Ian King <colin.king@...onical.com>

The variable this_leaf is being assigned a value that is never
read and it is being updated a little later with a newer value,
hence we can remove the redundant assignment.

Cleans up clang warning: Value stored to 'this_leaf' is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 arch/x86/kernel/cpu/intel_cacheinfo.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 24f749324c0f..9990a71e311f 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -831,7 +831,6 @@ static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
 	} else if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
 		unsigned int apicid, nshared, first, last;
 
-		this_leaf = this_cpu_ci->info_list + index;
 		nshared = base->eax.split.num_threads_sharing + 1;
 		apicid = cpu_data(cpu).apicid;
 		first = apicid - (apicid % nshared);
-- 
2.14.1