linux-kernel - [PATCH 2/3] x86/crash: use SZ_1M macro instead of hardcoded value

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231214163842.129139-3-ytcoode@gmail.com>
Date:   Fri, 15 Dec 2023 00:38:41 +0800
From:   Yuntao Wang <ytcoode@...il.com>
To:     linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
        x86@...nel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>, Baoquan He <bhe@...hat.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        Dave Young <dyoung@...hat.com>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Eric DeVolder <eric.devolder@...cle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Sourabh Jain <sourabhjain@...ux.ibm.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Takashi Iwai <tiwai@...e.de>,
        Lianbo Jiang <lijiang@...hat.com>,
        Yuntao Wang <ytcoode@...il.com>
Subject: [PATCH 2/3] x86/crash: use SZ_1M macro instead of hardcoded value

Use SZ_1M macro instead of hardcoded 1<<20 to make code more readable.

Signed-off-by: Yuntao Wang <ytcoode@...il.com>
---
 arch/x86/kernel/crash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 792231a56d11..249b5876e7ec 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -170,7 +170,7 @@ static int elf_header_exclude_ranges(struct crash_mem *cmem)
 	int ret = 0;
 
 	/* Exclude the low 1M because it is always reserved */
-	ret = crash_exclude_mem_range(cmem, 0, (1<<20)-1);
+	ret = crash_exclude_mem_range(cmem, 0, SZ_1M - 1);
 	if (ret)
 		return ret;
 
-- 
2.43.0