blob: 40a618eb24093cbd71ea5d0cccf7fcd829b3846c [file] [log] [blame]
From e1a8a720ae7377b92a185b7e7630df2ada1c61b7 Mon Sep 17 00:00:00 2001
From: Guo Ren <>
Date: Mon, 30 Dec 2019 15:53:37 +0800
Subject: [PATCH] csky/mm: Fixup export invalid_pte_table symbol
commit 7f4a567332f035ab16b29010fbd04a0f10183c77 upstream.
There is no present bit in csky pmd hardware, so we need to prepare invalid_pte_table
for empty pmd entry and the functions (pmd_none & pmd_present) in pgtable.h need
invalid_pte_talbe to get result. If a module use these functions, we need export the
symbol for it.
Signed-off-by: Guo Ren <>
Cc: Mo Qihui <>
Cc: Zhange Jian <>
Signed-off-by: Paul Gortmaker <>
diff --git a/arch/csky/mm/init.c b/arch/csky/mm/init.c
index 66e597053488..a0b9b8210af1 100644
--- a/arch/csky/mm/init.c
+++ b/arch/csky/mm/init.c
@@ -31,6 +31,7 @@
pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_bss;
pte_t invalid_pte_table[PTRS_PER_PTE] __page_aligned_bss;
unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]