linux-kernel - [PATCH 2/2] bus: bt1-axi: Build the driver into the kernel

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Message-ID: <20200528193113.17372-2-Sergey.Semin@baikalelectronics.ru>
Date:   Thu, 28 May 2020 22:31:13 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Arnd Bergmann <arnd@...db.de>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Olof Johansson <olof@...om.net>, <soc@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] bus: bt1-axi: Build the driver into the kernel

Alas the method trigger_all_cpu_backtrace() isn't exported by the
kernel, but we need to have it called in case of the bus errors detected
to get a better description of a possible cause of the error. Let's
disable the ability to build the driver as a loadable kernel module then.
Note In future the driver will support the AXI-bus interconnect capability,
so we'd have to make it built into the kernel anyway.

Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>
Cc: Olof Johansson <olof@...om.net>
Cc: soc@...nel.org
---
 drivers/bus/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index 18858f560d1f..4be793c5ab4d 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -45,7 +45,7 @@ config BT1_APB
 	  accessed via corresponding sysfs nodes.
 
 config BT1_AXI
-	tristate "Baikal-T1 AXI-bus driver"
+	bool "Baikal-T1 AXI-bus driver"
 	depends on MIPS_BAIKAL_T1 || COMPILE_TEST
 	select MFD_SYSCON
 	help
-- 
2.26.2