linux-kernel - Re: [PATCH] tty: xilinx_uartps: move to arch

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Message-ID: <62daa70c-0c6f-7628-efa4-308cfe93709c@xilinx.com>
Date:   Thu, 24 Aug 2017 11:32:25 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     Greg KH <gregkh@...uxfoundation.org>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>,
        Linus Walleij <linus.walleij@...aro.org>
CC:     <linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <michal.simek@...inx.com>, <shubhrajyoti.datta@...il.com>
Subject: Re: [PATCH] tty: xilinx_uartps: move to arch_initcall for earlier
 console

Hi, +Linus

On 24.8.2017 01:24, Greg KH wrote:
> On Wed, Aug 23, 2017 at 04:50:21PM +0530, Shubhrajyoti Datta wrote:
>> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
> 
> I can't take patches without any changelog text at all :(

ok. I see you have also commented this.

Anyway this is kind of old discussion about moving serial drivers to
arch_initcall from module_init.

There is one patch in the tree.

commit 4dd9e742df98f8f600b4302d3adbb087a68237f7
Author:     Alessandro Rubini <rubini@...dd.com>
AuthorDate: Tue May 5 05:54:13 2009 +0100
Commit:     Russell King <rmk+kernel@....linux.org.uk>
CommitDate: Sun May 31 14:58:11 2009 +0100

    [ARM] 5505/1: serial amba-pl011: move to arch_initcall for earlier
console

    Signed-off-by: Alessandro Rubini <rubini@...pv.it>"
    Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>

and then there was one patch (also sent to linux-serial but don't have link)
https://patches.linaro.org/patch/14633/

where that discussion wasn't finished.

There is one more patch which does that without real description for
this change.
commit ce87122911f8db59d3c2bc355c694c7a38940804
Author:     Vladimir Murzin <vladimir.murzin@....com>
AuthorDate: Tue Jun 7 16:02:37 2016 +0100
Commit:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CommitDate: Sat Jun 25 14:01:57 2016 -0700

    serial: mps2-uart: make driver explicitly non-modular

Most of drivers are using module_init and only some of them arch_initcall.

Thanks,
Michal