linux-kernel - [PATCH] x86/crash: Remove redundant 0 value initialization

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Message-Id: <20250818123530.635234-1-liaoyuanhong@vivo.com>
Date: Mon, 18 Aug 2025 20:35:28 +0800
From: Liao Yuanhong <liaoyuanhong@...o.com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Brian Gerst <brgerst@...il.com>,
	Coiby Xu <coxu@...hat.com>,
	Baoquan He <bhe@...hat.com>,
	Jiri Bohac <jbohac@...e.cz>,
	linux-kernel@...r.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT))
Cc: Liao Yuanhong <liaoyuanhong@...o.com>
Subject: [PATCH] x86/crash: Remove redundant 0 value initialization

The crash_mem struct is already zeroed by vzalloc(). It's redundant to
initialize cmem->nr_ranges to 0.

Signed-off-by: Liao Yuanhong <liaoyuanhong@...o.com>
---
 arch/x86/kernel/crash.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index c6b12bed173d..60bb24ddd36f 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -172,7 +172,6 @@ static struct crash_mem *fill_up_crash_elf_data(void)
 		return NULL;
 
 	cmem->max_nr_ranges = nr_ranges;
-	cmem->nr_ranges = 0;
 
 	return cmem;
 }
@@ -332,7 +331,6 @@ int crash_setup_memmap_entries(struct kimage *image, struct boot_params *params)
 		return -ENOMEM;
 
 	cmem->max_nr_ranges = nr_ranges;
-	cmem->nr_ranges = 0;
 
 	memset(&cmd, 0, sizeof(struct crash_memmap_data));
 	cmd.params = params;
-- 
2.34.1