From: Larry Finger <Larry.Finger@lwfinger.net>
To: Paul Bolle <pebolle@tiscali.nl>, Randy Dunlap <rdunlap@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Kconfig circular dependency question
Date: Sun, 06 Apr 2014 16:07:54 -0500 [thread overview]
Message-ID: <5341C22A.1050907@lwfinger.net> (raw)
In-Reply-To: <1396817575.4886.23.camel@x220>
On 04/06/2014 03:52 PM, Paul Bolle wrote:
> On Sun, 2014-04-06 at 13:31 -0700, Randy Dunlap wrote:
>> and/or changing MOUSE_APPLETOUCH to depend on USB instead of select it?
>
> MOUSE_APPLETOUCH selects USB and depends on USB_ARCH_HAS_HCD. That's
> actually quite a common pattern.
>
> But what is the purpose of USB_ARCH_HAS_HCD? It is set by default if
> USB_SUPPORT is set. And USB depends on it, but since USB also depends on
> USB_SUPPORT that seems superfluous.
>
> My slow day continues, because I find this hard to grok.
As you have seen in my reply to Randy, this appears to arise from violating one
of the edicts of Linus that says that no configuration variable should select a
subsystem. Of course, one could argue that RFKILL is also a subsystem, and that
R8723AU should depend on it rather that selecting it.
My day also seems to be slowing. :)
Larry
next prev parent reply other threads:[~2014-04-06 21:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-06 19:49 Kconfig circular dependency question Larry Finger
2014-04-06 20:10 ` Paul Bolle
2014-04-06 20:21 ` Paul Bolle
2014-04-06 20:31 ` Randy Dunlap
2014-04-06 20:52 ` Paul Bolle
2014-04-06 21:07 ` Larry Finger [this message]
2014-04-06 21:14 ` Paul Bolle
2014-04-06 22:51 ` Larry Finger
2014-04-07 17:10 ` Paul Bolle
2014-04-07 0:02 ` Gene Heskett
2014-04-06 21:03 ` Larry Finger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5341C22A.1050907@lwfinger.net \
--to=larry.finger@lwfinger.net \
--cc=linux-kernel@vger.kernel.org \
--cc=pebolle@tiscali.nl \
--cc=rdunlap@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.