linux-kernel - Re: Re: [PATCH] USB: HCD: remove logic about which hcd is loaded

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Message-ID: <7e7ef90b.3a68c.19ba761c225.Coremail.chenhuacai@loongson.cn>
Date: Sat, 10 Jan 2026 18:09:20 +0800 (GMT+08:00)
From: 陈华才 <chenhuacai@...ngson.cn>
To: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Alan Stern" <stern@...land.harvard.edu>
Subject: Re: Re: [PATCH] USB: HCD: remove logic about which hcd is loaded




> -----原始邮件-----
> 发件人: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
> 发送时间:2026-01-10 17:54:10 (星期六)
> 收件人: 陈华才 <chenhuacai@...ngson.cn>
> 抄送: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, "Alan Stern" <stern@...land.harvard.edu>
> 主题: Re: [PATCH] USB: HCD: remove logic about which hcd is loaded
> 
> On Sat, Jan 10, 2026 at 05:49:25PM +0800, 陈华才 wrote:
> > 
> > 
> > 
> > > -----原始邮件-----
> > > 发件人: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
> > > 发送时间:2026-01-07 23:25:40 (星期三)
> > > 收件人: linux-usb@...r.kernel.org
> > > 抄送: linux-kernel@...r.kernel.org, "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>, "Huacai Chen" <chenhuacai@...ngson.cn>, "Alan Stern" <stern@...land.harvard.edu>
> > > 主题: [PATCH] USB: HCD: remove logic about which hcd is loaded
> > > 
> > > It turns out that warning about which USB host controller is loaded
> > > before another one doesn't really matter.  All that really is needed is
> > > the PCI softdep module loading logic, which has been present in the
> > > kernel ever since commit 05c92da0c524 ("usb: ohci/uhci - add soft
> > > dependencies on ehci_pci")
> > > 
> > > So remove the warning messages, they are not useful, not needed, and
> > > only confuse people.  As can be seen in the discussion at
> > > https://lore.kernel.org/r/20251230080014.3934590-1-chenhuacai@loongson.cn
> > > 
> > > Cc: Huacai Chen <chenhuacai@...ngson.cn>
> > > Suggested-by: Alan Stern <stern@...land.harvard.edu>
> > > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Reviewed-by: Huacai Chen <chenhuacai@...ngson.cn>
> > 
> > And it should be backported to stable branches?
> 
> It doesn't change any behavior, so why would it be needed anywhere else?
> It's just removing a message that people have been ignoring for a very
> very long time :)
Because I (and others) don't want to see a bogus warning when I use LTS branches.

Huacai

> 
> thanks,
> 
> greg k-h


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