linux-kernel - [PATCH 15/17] riscv: don't allow selecting SBI-based drivers for M-mode

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Message-Id: <20190610221621.10938-16-hch@lst.de>
Date:   Tue, 11 Jun 2019 00:16:19 +0200
From:   Christoph Hellwig <hch@....de>
To:     Palmer Dabbelt <palmer@...ive.com>
Cc:     Damien Le Moal <damien.lemoal@....com>,
        linux-riscv@...ts.infradead.org, uclinux-dev@...inux.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH 15/17] riscv: don't allow selecting SBI-based drivers for M-mode

From: Damien Le Moal <damien.lemoal@....com>

Do not allow selecting SBI related options with MMU option not set.

Signed-off-by: Damien Le Moal <damien.lemoal@....com>
Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/tty/hvc/Kconfig    | 2 +-
 drivers/tty/serial/Kconfig | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index 4d22b911111f..5a1ab6b536ff 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -89,7 +89,7 @@ config HVC_DCC
 
 config HVC_RISCV_SBI
 	bool "RISC-V SBI console support"
-	depends on RISCV
+	depends on RISCV && !M_MODE
 	select HVC_DRIVER
 	help
 	  This enables support for console output via RISC-V SBI calls, which
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 0d31251e04cc..59dba9f9e466 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -88,7 +88,7 @@ config SERIAL_EARLYCON_ARM_SEMIHOST
 
 config SERIAL_EARLYCON_RISCV_SBI
 	bool "Early console using RISC-V SBI"
-	depends on RISCV
+	depends on RISCV && !M_MODE
 	select SERIAL_CORE
 	select SERIAL_CORE_CONSOLE
 	select SERIAL_EARLYCON
-- 
2.20.1