linux-kernel - [PATCH 4.9 103/329] ARC: Fix malformed ARC_EMUL

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Date:   Mon, 28 May 2018 12:00:32 +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, Ulf Magnusson <ulfalizer@...il.com>,
        Vineet Gupta <vgupta@...opsys.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.9 103/329] ARC: Fix malformed ARC_EMUL_UNALIGNED default

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ulf Magnusson <ulfalizer@...il.com>

[ Upstream commit 827cc2fa024dd6517d62de7a44c7b42f32af371b ]

'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 from ARC_EMUL_UNALIGNED instead of changing it. bool
and tristate symbols implicitly default to n.

Discovered with the
https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_ulfalizer_Kconfiglib_blob_master_examples_list-5Fundefined.py&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=c14YS-cH-kdhTOW89KozFhBtBJgs1zXscZojEZQ0THs&m=WxxD8ozR7QQUVzNCBksiznaisBGO_crN7PBOvAoju8s&s=1LmxsNqxwT-7wcInVpZ6Z1J27duZKSoyKxHIJclXU_M&e=
script.

Signed-off-by: Ulf Magnusson <ulfalizer@...il.com>
Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arc/Kconfig |    1 -
 1 file changed, 1 deletion(-)

--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -495,7 +495,6 @@ config ARC_CURR_IN_REG

 config ARC_EMUL_UNALIGNED
 	bool "Emulate unaligned memory access (userspace only)"
-	default N
 	select SYSCTL_ARCH_UNALIGN_NO_WARN
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	depends on ISA_ARCOMPACT