linux-kernel - [PATCH v2 20/20] x86/PCI: VMD: Fix malformed Kconfig default

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Date:   Tue,  6 Feb 2018 23:11:06 +0100
From:   Ulf Magnusson <ulfalizer@...il.com>
To:     helgaas@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        tfiga@...omium.org, paul.burton@...s.com, m.szyprowski@...sung.com,
        egtvedt@...fundet.no, linus.walleij@...aro.org,
        vgupta@...opsys.com, mgorman@...hsingularity.net, hch@....de,
        mina86@...a86.com, robh@...nel.org, sboyd@...eaurora.org,
        paulus@...abs.org, will.deacon@....com, tony@...mide.com,
        npiggin@...il.com, yamada.masahiro@...ionext.com,
        lorenzo.pieralisi@....com, bhelgaas@...gle.com,
        linux-pci@...r.kernel.org, Ulf Magnusson <ulfalizer@...il.com>
Subject: [PATCH v2 20/20] x86/PCI: VMD: Fix malformed Kconfig default

'default N' should be 'default n', though they happen to have the same
effect here, due to undefined symbols (N in this case) evaluating to n
in a tristate sense.

Remove the default instead of changing it. bool and tristate symbols
implicitly default to n.

Discovered with the
https://github.com/ulfalizer/Kconfiglib/blob/master/examples/list_undefined.py
script.

Signed-off-by: Ulf Magnusson <ulfalizer@...il.com>
---
Changes in v2:
Make it clear that Kconfig is involved.

 drivers/pci/host/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index a4ed7484d127..dc8a2a175f19 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -215,7 +215,6 @@ config PCIE_TANGO_SMP8759
 config VMD
 	depends on PCI_MSI && X86_64 && SRCU
 	tristate "Intel Volume Management Device Driver"
-	default N
 	---help---
 	  Adds support for the Intel Volume Management Device (VMD). VMD is a
 	  secondary PCI host bridge that allows PCI Express root ports,
-- 
2.14.1