linux-kernel - [PATCH] powerpc/cputable: Use pointer from memcpy() call for assignment in set_cur_cpu

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Message-ID: <6c61cf90-5811-4450-b649-7a2c84584ee9@web.de>
Date: Thu, 30 Oct 2025 21:15:55 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: linuxppc-dev@...ts.ozlabs.org,
 Christophe Leroy <christophe.leroy@...roup.eu>,
 Dmitry Vyukov <dvyukov@...gle.com>, Madhavan Srinivasan
 <maddy@...ux.ibm.com>, Michael Ellerman <mpe@...erman.id.au>,
 Nicholas Piggin <npiggin@...il.com>
Cc: LKML <linux-kernel@...r.kernel.org>, kernel-janitors@...r.kernel.org,
 Miaoqian Lin <linmq006@...il.com>
Subject: [PATCH] powerpc/cputable: Use pointer from memcpy() call for
 assignment in set_cur_cpu_spec()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 30 Oct 2025 21:10:11 +0100

A pointer was assigned to a variable. The same pointer was used for
the destination parameter of a memcpy() call.
This function is documented in the way that the same value is returned.
Thus convert two separate statements into a direct variable assignment for
the return value from a memory copy action.

The source code was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/powerpc/kernel/cputable.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 6f6801da9dc1..a69ea88b780f 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -34,12 +34,11 @@ void __init set_cur_cpu_spec(struct cpu_spec *s)
 {
 	struct cpu_spec *t = &the_cpu_spec;
 
-	t = PTRRELOC(t);
 	/*
 	 * use memcpy() instead of *t = *s so that GCC replaces it
 	 * by __memcpy() when KASAN is active
 	 */
-	memcpy(t, s, sizeof(*t));
+	t = memcpy(PTRRELOC(t), s, sizeof(*t));
 
 	*PTRRELOC(&cur_cpu_spec) = &the_cpu_spec;
 }
-- 
2.51.1