linux-kernel - [PATCH 5.19 001/101] riscv: make t-head erratas depend on MMU

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Date:   Mon,  3 Oct 2022 09:09:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Heiko Stuebner <heiko@...ech.de>, Guo Ren <guoren@...nel.org>,
        Palmer Dabbelt <palmer@...osinc.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 001/101] riscv: make t-head erratas depend on MMU

From: Heiko Stuebner <heiko@...ech.de>

[ Upstream commit 2a2018c3ac84c2dc7cfbad117ce9339ea0914622 ]

Both basic extensions of SVPBMT and ZICBOM depend on CONFIG_MMU.
Make the T-Head errata implementations of the similar functionality
also depend on it to prevent build errors.

Fixes: a35707c3d850 ("riscv: add memory-type errata for T-Head")
Fixes: d20ec7529236 ("riscv: implement cache-management errata for T-Head SoCs")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Heiko Stuebner <heiko@...ech.de>
Reviewed-by: Guo Ren <guoren@...nel.org>
Cc: stable@...r.kernel.org
Link: https://lore.kernel.org/r/20220907154932.2858518-1-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@...osinc.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/riscv/Kconfig.erratas | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig.erratas b/arch/riscv/Kconfig.erratas
index 457ac72c9b36..e59a770b4432 100644
--- a/arch/riscv/Kconfig.erratas
+++ b/arch/riscv/Kconfig.erratas
@@ -46,7 +46,7 @@ config ERRATA_THEAD
 
 config ERRATA_THEAD_PBMT
 	bool "Apply T-Head memory type errata"
-	depends on ERRATA_THEAD && 64BIT
+	depends on ERRATA_THEAD && 64BIT && MMU
 	select RISCV_ALTERNATIVE_EARLY
 	default y
 	help
-- 
2.35.1