linux-kernel - Re: [PATCH] kernel/ksysfs.c:fix dependence on CONFIG

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Message-ID: <d82e647a0811181725y3a01f9aanca4cf3ca7e8f3081@mail.gmail.com>
Date:	Wed, 19 Nov 2008 09:25:53 +0800
From:	"Ming Lei" <tom.leiming@...il.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	kay.sievers@...y.org, greg@...ah.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kernel/ksysfs.c:fix dependence on CONFIG_NET

2008/11/19 Andrew Morton <akpm@...ux-foundation.org>:
> On Tue, 18 Nov 2008 15:38:18 -0800
> Andrew Morton <akpm@...ux-foundation.org> wrote:
>
>> On Sun, 16 Nov 2008 18:22:09 +0800
>> tom.leiming@...il.com wrote:
>>
>> > From: Ming Lei <tom.leiming@...il.com>
>> >
>> > Access to uevent_seqnum and uevent_helper does not need to
>> > depend on CONFIG_NET, so remove it.
>> >
>> > Signed-off-by: Ming Lei <tom.leiming@...il.com>
>> > ---
>> >  kernel/ksysfs.c |    4 ++--
>> >  1 files changed, 2 insertions(+), 2 deletions(-)
>> >
>> > diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
>> > index 08dd8ed..528dd78 100644
>> > --- a/kernel/ksysfs.c
>> > +++ b/kernel/ksysfs.c
>> > @@ -24,7 +24,7 @@ static struct kobj_attribute _name##_attr = __ATTR_RO(_name)
>> >  static struct kobj_attribute _name##_attr = \
>> >     __ATTR(_name, 0644, _name##_show, _name##_store)
>> >
>> > -#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
>> > +#if defined(CONFIG_HOTPLUG)
>> >  /* current uevent sequence number */
>> >  static ssize_t uevent_seqnum_show(struct kobject *kobj,
>> >                               struct kobj_attribute *attr, char *buf)
>> > @@ -137,7 +137,7 @@ struct kobject *kernel_kobj;
>> >  EXPORT_SYMBOL_GPL(kernel_kobj);
>> >
>> >  static struct attribute * kernel_attrs[] = {
>> > -#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
>> > +#if defined(CONFIG_HOTPLUG)
>> >     &uevent_seqnum_attr.attr,
>> >     &uevent_helper_attr.attr,
>> >  #endif
>>
>> I think the story here is that uevent uses netlink, and with
>> CONFIG_NET=n, we have no netlink, so that code couldn't do anything
>> anyway.
>>
>
> Or not.  Perhaps we can still use uevent_helper in this case?

yes.


>
> (Getting a bit tired of writing people's changelogs for them!)
>



-- 
Lei Ming
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