linux-kernel - Re: [PATCH] checkpatch: avoid default n

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Date:   Wed, 03 Jul 2019 01:42:55 -0700
From:   Joe Perches <joe@...ches.com>
To:     Miles Chen <miles.chen@...iatek.com>,
        Andy Whitcroft <apw@...onical.com>
Cc:     linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        wsd_upstream@...iatek.com
Subject: Re: [PATCH] checkpatch: avoid default n

On Wed, 2019-07-03 at 16:30 +0800, Miles Chen wrote:
> This change reports a warning when "default n" is used.
> 
> I have seen several "remove default n" patches, so I think
> it might be helpful to add this test in checkpatch.
> 
> tested:
> WARNING: 'default n' is the default value, no need to write it explicitly.
> +       default n

I don't think this is reasonable as there are
several uses like:

		default y
		default n if <foo>

For instance:

arch/alpha/Kconfig-config ALPHA_WTINT
arch/alpha/Kconfig-     bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
arch/alpha/Kconfig-     default y if ALPHA_QEMU
arch/alpha/Kconfig:     default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
arch/alpha/Kconfig:     default n if !ALPHA_SRM && !ALPHA_GENERIC