linux-kernel - [PATCH 1/2] csky: Cast argument to virt_to

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Date:   Tue, 08 Aug 2023 10:25:55 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Vineet Gupta <vgupta@...nel.org>, Guo Ren <guoren@...nel.org>
Cc:     linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-csky@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 1/2] csky: Cast argument to virt_to_pfn() to (void *)

The virt_to_pfn() function takes a (void *) as argument, fix
this up to avoid exploiting the unintended polymorphism of
virt_to_pfn.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 arch/arc/include/asm/page.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h
index e43fe27ec54d..02b53ad811fb 100644
--- a/arch/arc/include/asm/page.h
+++ b/arch/arc/include/asm/page.h
@@ -108,7 +108,7 @@ extern int pfn_valid(unsigned long pfn);
 
 #else /* CONFIG_HIGHMEM */
 
-#define ARCH_PFN_OFFSET		virt_to_pfn(CONFIG_LINUX_RAM_BASE)
+#define ARCH_PFN_OFFSET		virt_to_pfn((void *)CONFIG_LINUX_RAM_BASE)
 
 #endif /* CONFIG_HIGHMEM */
 

-- 
2.34.1