linux-kernel - [tip: irq/core] genirq/matrix: Remove redundant assignment to variable 'end'

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Date:   Mon, 25 Apr 2022 13:10:38 -0000
From:   "tip-bot2 for Colin Ian King" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Colin Ian King <colin.i.king@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tom Rix <trix@...hat.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, maz@...nel.org
Subject: [tip: irq/core] genirq/matrix: Remove redundant assignment to variable 'end'

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     1adb4d7ad3a585b451f5cf6b0a90c5917af3eac5
Gitweb:        https://git.kernel.org/tip/1adb4d7ad3a585b451f5cf6b0a90c5917af3eac5
Author:        Colin Ian King <colin.i.king@...il.com>
AuthorDate:    Fri, 22 Apr 2022 12:04:18 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 25 Apr 2022 15:02:57 +02:00

genirq/matrix: 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>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Tom Rix <trix@...hat.com>
Link: https://lore.kernel.org/r/20220422110418.1264778-1-colin.i.king@gmail.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 bbfb264..1698e77 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))