linux-kernel - [PATCH] arm64: remove redundant 'default n' from Kconfig

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Message-ID: <b0efd68a-8120-188f-cdee-8b346087b6d9@samsung.com>
Date:   Fri, 12 Apr 2019 11:42:16 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: remove redundant 'default n' from Kconfig

'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:
    
        config FOO
                bool
    
        config FOO
                bool
                default n
    
    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
 arch/arm64/Kconfig |    1 -
 1 file changed, 1 deletion(-)

Index: b/arch/arm64/Kconfig
===================================================================
--- a/arch/arm64/Kconfig	2019-04-12 11:40:06.118091734 +0200
+++ b/arch/arm64/Kconfig	2019-04-12 11:40:06.102091733 +0200
@@ -916,7 +916,6 @@ config PARAVIRT
 config PARAVIRT_TIME_ACCOUNTING
 	bool "Paravirtual steal time accounting"
 	select PARAVIRT
-	default n
 	help
 	  Select this option to enable fine granularity task steal time
 	  accounting. Time spent executing other tasks in parallel with