netdev - Re: [PATCH] bcma,ssb: simplify dependency handling for bcma and ssb drivers

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Date: Mon, 18 Dec 2023 16:59:00 +0200
From: Kalle Valo <kvalo@...nel.org>
To: Johannes Berg <johannes@...solutions.net>
Cc: Lukas Bulwahn <lukas.bulwahn@...il.com>,  Rafał Miłecki
 <zajec5@...il.com>,  "David S . Miller" <davem@...emloft.net>,  Eric
 Dumazet <edumazet@...gle.com>,  Jakub Kicinski <kuba@...nel.org>,  Paolo
 Abeni <pabeni@...hat.com>,  Larry Finger <Larry.Finger@...inger.net>,
  Arend van Spriel <aspriel@...il.com>,  Franky Lin
 <franky.lin@...adcom.com>,  Hante Meuleman <hante.meuleman@...adcom.com>,
  Michael Buesch <m@...s.ch>,  linux-wireless@...r.kernel.org,
  netdev@...r.kernel.org,  b43-dev@...ts.infradead.org,
  brcm80211-dev-list.pdl@...adcom.com,  SHA-cyfmac-dev-list@...ineon.com,
  kernel-janitors@...r.kernel.org,  linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bcma,ssb: simplify dependency handling for bcma and ssb
 drivers

Johannes Berg <johannes@...solutions.net> writes:

> On Mon, 2023-12-18 at 12:58 +0100, Lukas Bulwahn wrote:
>
> Dunno, I'm not super involved with this but ...
>
>> +++ b/drivers/bcma/Kconfig
>> @@ -1,12 +1,7 @@
>>  # SPDX-License-Identifier: GPL-2.0
>> -config BCMA_POSSIBLE
>> -	bool
>> -	depends on HAS_IOMEM && HAS_DMA
>> -	default y
>> -
>>  menuconfig BCMA
>>  	tristate "Broadcom specific AMBA"
>> -	depends on BCMA_POSSIBLE
>> +	depends on HAS_IOMEM && HAS_DMA
>
> [...]
>>  config BRCMSMAC
>>  	tristate "Broadcom IEEE802.11n PCIe SoftMAC WLAN driver"
>> -	depends on MAC80211
>> -	depends on BCMA_POSSIBLE
>> +	depends on HAS_IOMEM && HAS_DMA && MAC80211
>>  	select BCMA
>
> to me it kind of seems more obvious for example in this case to say
> "depend on BCMA_POSSIBLE and select BCMA" rather than open-coding the
> BCMA dependencies both here and in BCMA? Now granted, they're rather
> unlikely to _change_, but it still seems more obvious?

I was thinking the same. Lukas, is there a specific reason why you want
to change this or this just something you noticed by chance?

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