linux-kernel - [PATCH v2] x86: replace_intsrc_all function removes unused return values

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Message-Id: <20220608095904.83592-1-xupengfei@nfschina.com>
Date:   Wed,  8 Jun 2022 17:59:05 +0800
From:   XU pengfei <xupengfei@...china.com>
To:     bp@...en8.de, mingo@...hat.com, tglx@...utronix.de
Cc:     dave.hansen@...ux.intel.com, hpa@...or.com,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        XU pengfei <xupengfei@...china.com>
Subject: [PATCH v2] x86: replace_intsrc_all function removes unused return values

Change the return value of the replace_intsrc_all function to
void to reduce eAX register calls .

Signed-off-by: XU pengfei <xupengfei@...china.com>
---
 arch/x86/kernel/mpparse.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index fed721f90116..0c9b9db9cac3 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -723,7 +723,7 @@ static
 inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
 #endif /* CONFIG_X86_IO_APIC */
 
-static int  __init replace_intsrc_all(struct mpc_table *mpc,
+static void  __init replace_intsrc_all(struct mpc_table *mpc,
 					unsigned long mpc_new_phys,
 					unsigned long mpc_new_length)
 {
@@ -793,8 +793,6 @@ static int  __init replace_intsrc_all(struct mpc_table *mpc,
 	/* update checksum */
 	mpc->checksum = 0;
 	mpc->checksum -= mpf_checksum((unsigned char *)mpc, mpc->length);
-
-	return 0;
 }
 
 int enable_update_mptable;
-- 
2.18.2