linux-kernel - [PATCH AUTOSEL 6.1 30/39] LoongArch: Export symbol invalid_pud

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Date:   Sun, 29 Oct 2023 18:57:02 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Huacai Chen <chenhuacai@...ngson.cn>,
        Randy Dunlap <rdunlap@...radead.org>,
        Tianrui Zhao <zhaotianrui@...ngson.cn>,
        Sasha Levin <sashal@...nel.org>, chenhuacai@...nel.org,
        akpm@...ux-foundation.org, chenfeiyang@...ngson.cn, arnd@...db.de,
        maobibo@...ngson.cn, loongarch@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.1 30/39] LoongArch: Export symbol invalid_pud_table for modules building

From: Huacai Chen <chenhuacai@...ngson.cn>

[ Upstream commit 449c2756c2323c9e32b2a2fa9c8b59ce91b5819d ]

Export symbol invalid_pud_table for modules building (such as the KVM
module) if 4-level page tables enabled. Otherwise we get:

ERROR: modpost: "invalid_pud_table" [arch/loongarch/kvm/kvm.ko] undefined!

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Acked-by: Randy Dunlap <rdunlap@...radead.org>
Tested-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Tianrui Zhao <zhaotianrui@...ngson.cn>
Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/loongarch/mm/init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index c7e9c96719fa3..c74da7770e39e 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -228,6 +228,7 @@ pgd_t swapper_pg_dir[_PTRS_PER_PGD] __section(".bss..swapper_pg_dir");
 pgd_t invalid_pg_dir[_PTRS_PER_PGD] __page_aligned_bss;
 #ifndef __PAGETABLE_PUD_FOLDED
 pud_t invalid_pud_table[PTRS_PER_PUD] __page_aligned_bss;
+EXPORT_SYMBOL(invalid_pud_table);
 #endif
 #ifndef __PAGETABLE_PMD_FOLDED
 pmd_t invalid_pmd_table[PTRS_PER_PMD] __page_aligned_bss;
-- 
2.42.0