linux-kernel - [PATCH] riscv: Fix 32b kernel build with CONFIG_DEBUG

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Date:   Wed, 28 Apr 2021 06:02:17 -0400
From:   Alexandre Ghiti <alex@...ti.fr>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Alexandre Ghiti <alex@...ti.fr>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] riscv: Fix 32b kernel build with CONFIG_DEBUG_VIRTUAL=y

Declare kernel_virt_addr for 32b kernel since it is used in
__phys_addr_symbol defined when CONFIG_DEBUG_VIRTUAL is set.

Fixes: 2bfc6cd81bd17 ("riscv: Move kernel mapping outside of linear
mapping")
Signed-off-by: Alexandre Ghiti <alex@...ti.fr>
---
 arch/riscv/include/asm/page.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h
index e280ba60cb34..6a7761c86ec2 100644
--- a/arch/riscv/include/asm/page.h
+++ b/arch/riscv/include/asm/page.h
@@ -106,9 +106,9 @@ extern unsigned long pfn_base;
 #define ARCH_PFN_OFFSET		(PAGE_OFFSET >> PAGE_SHIFT)
 #endif /* CONFIG_MMU */
 
-#ifdef CONFIG_64BIT
 extern unsigned long kernel_virt_addr;
 
+#ifdef CONFIG_64BIT
 #define linear_mapping_pa_to_va(x)	((void *)((unsigned long)(x) + va_pa_offset))
 #ifdef CONFIG_XIP_KERNEL
 #define kernel_mapping_pa_to_va(y)	({						\
-- 
2.20.1