arm64: vdso: Pass (void *) to virt_to_page()

[ Upstream commit b0abde80620f42d1ceb3de5e4c1a49cdd5628229 ]

Like the other calls in this function virt_to_page() expects
a pointer, not an integer.

However since many architectures implement virt_to_pfn() as
a macro, this function becomes polymorphic and accepts both a
(unsigned long) and a (void *).

Fix this up with an explicit cast.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: http://lists.infradead.org/pipermail/linux-arm-kernel/2023-May/832583.html
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 99ae81a..6ebb8de 100644 (file)
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -312,7 +312,7 @@ static int aarch32_alloc_kuser_vdso_page(void)
 
        memcpy((void *)(vdso_page + 0x1000 - kuser_sz), __kuser_helper_start,
               kuser_sz);
-       aarch32_vectors_page = virt_to_page(vdso_page);
+       aarch32_vectors_page = virt_to_page((void *)vdso_page);
        return 0;
 }