linux-kernel - [PATCH v4 2/3] staging: vme: Add VME

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Message-ID: <00de5644d7c2f8c8878eccf86b761e0602732089.1650544175.git.codeagain@codeagain.dev>
Date:   Thu, 21 Apr 2022 11:59:02 -0300
From:   Bruno Moreira-Guedes <codeagain@...eagain.dev>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Martyn Welch <martyn@...chs.me.uk>,
        Manohar Vanga <manohar.vanga@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        outreachy@...ts.linux.dev,
        Bruno's Patch Watchbox <patch-reply@...eagain.dev>
Subject: [PATCH v4 2/3] staging: vme: Add VME_BUS dependency to Kconfig

The KConfig file for VME_USER ('drivers/staging/vme/devices/Kconfig')
sourced at "drivers/vme/boards/KConfig" misses a `depends on` line for
VME_BUS, which is unnoticeable for menuconfig users who aren't be able
to select it through this interface without setting the CONFIG_VME_BUS
option because it's nested on VME_BUS menu entry.

A patch to move appropriately this driver to the "Staging" submenu
([PATCH 1/3], originally sent as a single patch submitted at
https://lore.kernel.org/linux-staging/3fbc5325e94b9ae0666a1f5a56a4e5372bfcea1d.camel@codeagain.dev/T/#t),
however, unveiled this missing `depends on` line, since it moved the
`source` line for VME_USER's KConfig to somewhere else, allowing it to
be compiled without the support for VME_BUS. While it compiles fine and
seems to initialize the driver fine (tested both as module and as built-
in), it seems to make no sense having VME_USER without VME_BUS.

This patches addresses it by adding the VME_BUS to the `depends on` line
at "drivers/staging/vme/devices/Kconfig".

Signed-off-by: Bruno Moreira-Guedes <codeagain@...eagain.dev>
---
 drivers/staging/vme/devices/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vme/devices/Kconfig b/drivers/staging/vme/devices/Kconfig
index 5651bb16b28b..e8b4461bf27f 100644
--- a/drivers/staging/vme/devices/Kconfig
+++ b/drivers/staging/vme/devices/Kconfig
@@ -3,7 +3,7 @@ comment "VME Device Drivers"

 config VME_USER
 	tristate "VME user space access driver"
-	depends on STAGING
+	depends on STAGING && VME_BUS
 	help
 	  If you say Y here you want to be able to access a limited number of
 	  VME windows in a manner at least semi-compatible with the interface
-- 
2.35.3

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