linux-kernel - [PATCH] kernel/irq/matrix.c: remove redundant assignment to variable 'end'

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Message-Id: <20220422110418.1264778-1-colin.i.king@gmail.com>
Date:   Fri, 22 Apr 2022 12:04:18 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>, Tom Rix <trix@...hat.com>
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: [PATCH] kernel/irq/matrix.c: remove redundant assignment to variable 'end'

Variable end is being initialized with a value that is never read, it
is being re-assigned later with the same value. The initialization is
redundant and can be removed.

Cleans up clang scan build warning:
kernel/irq/matrix.c:289:25: warning: Value stored to 'end' during its
initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 kernel/irq/matrix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
index bbfb26489aa1..1698e77645ac 100644
--- a/kernel/irq/matrix.c
+++ b/kernel/irq/matrix.c
@@ -286,7 +286,7 @@ void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk)
 int irq_matrix_alloc_managed(struct irq_matrix *m, const struct cpumask *msk,
 			     unsigned int *mapped_cpu)
 {
-	unsigned int bit, cpu, end = m->alloc_end;
+	unsigned int bit, cpu, end;
 	struct cpumap *cm;
 
 	if (cpumask_empty(msk))
-- 
2.35.1