linux-kernel - Re: [PATCH v3 06/27] gpio: replace devm_ioremap_nocache with devm

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Message-ID: <ca2bf6e4-096a-92f7-923d-3e5f72167fa1@huawei.com>
Date:   Wed, 3 Jan 2018 14:05:14 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     Linus Walleij <linus.walleij@...aro.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Greg KH <gregkh@...uxfoundation.org>, <ysxie@...mail.com>,
        <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v3 06/27] gpio: replace devm_ioremap_nocache with
 devm_ioremap



On 2018/1/2 16:41, Linus Walleij wrote:
> On Sat, Dec 23, 2017 at 11:58 AM, Yisheng Xie <xieyisheng1@...wei.com> wrote:
> 
>> Default ioremap is ioremap_nocache, so devm_ioremap has the same
>> function with devm_ioremap_nocache, which can just be killed to
>> save the size of devres.o
>>
>> This patch is to use use devm_ioremap instead of devm_ioremap_nocache,
>> which should not have any function change but prepare for killing
>> devm_ioremap_nocache.
>>
>> Cc: Linus Walleij <linus.walleij@...aro.org>
>> Cc: linux-gpio@...r.kernel.org
>> Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>

Well, I list the ARCHs related to the change file, do not include cris,ia64,mn10300
and openrisc, which ioremap is not the same as ioremap_nocache, as discussed in cover
letter. So please let me know if I need update the comment.

 change_file								ARCH
 drivers/gpio/gpio-ath79.c     | 3 +--					mips
 drivers/gpio/gpio-em.c        | 6 ++----				arm
 drivers/gpio/gpio-htc-egpio.c | 4 ++--					arm
 drivers/gpio/gpio-xgene.c     | 3 +--					arm64

Thanks
Yisheng
> 
> Patch applied.
> 
> Yours,
> Linus Walleij
> 
>