linux-kernel - [PATCH 29/29] csky: Fixup pfn_valid error with wrong max

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: <20210121065349.3188251-29-guoren@kernel.org>
Date:   Thu, 21 Jan 2021 14:53:49 +0800
From:   guoren@...nel.org
To:     guoren@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-csky@...r.kernel.org,
        Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH 29/29] csky: Fixup pfn_valid error with wrong max_mapnr

From: Guo Ren <guoren@...ux.alibaba.com>

The max_mapnr is the number of PFNs, not absolute PFN offset.

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
---
 arch/csky/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/csky/mm/init.c b/arch/csky/mm/init.c
index 03970f4408f5..81e4e5e78f38 100644
--- a/arch/csky/mm/init.c
+++ b/arch/csky/mm/init.c
@@ -86,9 +86,9 @@ void __init mem_init(void)
 #ifdef CONFIG_HIGHMEM
 	unsigned long tmp;
 
-	set_max_mapnr(highend_pfn);
+	set_max_mapnr(highend_pfn - ARCH_PFN_OFFSET);
 #else
-	set_max_mapnr(max_low_pfn);
+	set_max_mapnr(max_low_pfn - ARCH_PFN_OFFSET);
 #endif
 	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
-- 
2.17.1