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From: Joe Perches <joe@perches.com>
To: Changli Gao <xiaosuo@gmail.com>
Cc: Andy Grover <andy.grover@oracle.com>,
	James Morris <jmorris@namei.org>,
	linux-sctp@vger.kernel.org, rds-devel@oss.oracle.com,
	"Pekka Savola (ipv6)" <pekkas@netcore.fi>,
	linux-x25@vger.kernel.org, dccp@vger.kernel.org,
	bridge@lists.linux-foundation.org, Andrew,
	coreteam@netfilter.org,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Joerg Reuter <jreuter@yaina.de>,
	Sridhar Samudrala <sri@us.ibm.com>,
	Samuel Ortiz <samuel@sortiz.org>,
	Vlad Yasevich <vladislav.yasevich@hp.com>,
	netfilter@vger.kernel.org,
	Remi Denis-Courmont <remi.denis-courmont@nokia.com>,
	linux-hams@vger.kernel.org,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	netdev@vger.kernel.org, linux-decnet-user@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
	"David S. Miller" <davem@davemloft.net>,
	netfilter-devel@vger.kernel.org, Hendry <andrew.hendry@gmail.com>
Subject: Re: [Bridge] [PATCH] net: make ctl_path local and const
Date: Tue, 19 Oct 2010 20:28:57 -0700	[thread overview]
Message-ID: <1287545337.10409.602.camel@Joe-Laptop> (raw)
In-Reply-To: <AANLkTi=pz4zYnnUSvb9FjVvCAURruHhJTz7pBKDi8Pdw@mail.gmail.com>

On Wed, 2010-10-20 at 11:10 +0800, Changli Gao wrote:
> On Wed, Oct 20, 2010 at 11:01 AM, Joe Perches <joe@perches.com> wrote:
> > On Wed, 2010-10-20 at 10:54 +0800, Changli Gao wrote:
> >> Signed-off-by: Changli Gao <xiaosuo@gmail.com>
> > []
> >> diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
> >> index 04e9c0d..b92f269 100644
> >> --- a/net/appletalk/sysctl_net_atalk.c
> >> +++ b/net/appletalk/sysctl_net_atalk.c
> >> @@ -42,16 +42,16 @@ static struct ctl_table atalk_table[] = {
> >>       { },
> >>  };
> >> -static struct ctl_path atalk_path[] = {
> >> -     { .procname = "net", },
> >> -     { .procname = "appletalk", },
> >> -     { }
> >> -};
> >> -
> >>  static struct ctl_table_header *atalk_table_header;
> >>
> >>  void atalk_register_sysctl(void)
> >>  {
> >> +     const struct ctl_path atalk_path[] = {
> > Shouldn't all of these be static const struct ?
> They needn't. And some variables are specified __net_initdata currently.

At least some objects are smaller with static.

$ size net/appletalk/sysctl_net_atalk.o.*
   text	   data	    bss	    dec	    hex	filename
    324	    236	     48	    608	    260	net/appletalk/sysctl_net_atalk.o.withstatic
    344	    236	     48	    628	    274	net/appletalk/sysctl_net_atalk.o.withoutstatic




WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Changli Gao <xiaosuo@gmail.com>
Cc: Andy Grover <andy.grover@oracle.com>,
	James Morris <jmorris@namei.org>,
	linux-sctp@vger.kernel.org, rds-devel@oss.oracle.com,
	"Pekka Savola (ipv6)" <pekkas@netcore.fi>,
	linux-x25@vger.kernel.org, dccp@vger.kernel.org,
	bridge@lists.linux-foundation.org,
	Andrew@smtp1.linux-foundation.org, coreteam@netfilter.org,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Joerg Reuter <jreuter@yaina.de>,
	Sridhar Samudrala <sri@us.ibm.com>,
	Samuel Ortiz <samuel@sortiz.org>,
	Vlad Yasevich <vladislav.yasevich@hp.com>,
	netfilter@vger.kernel.org,
	Remi Denis-Courmont <remi.denis-courmont@nokia.com>,
	linux-hams@vger.kernel.org,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	netdev@vger.kernel.org, linux-decnet-user@lists.sourceforge.net,
	linux-kernel@vger.ker
Subject: Re: [PATCH] net: make ctl_path local and const
Date: Tue, 19 Oct 2010 20:28:57 -0700	[thread overview]
Message-ID: <1287545337.10409.602.camel@Joe-Laptop> (raw)
In-Reply-To: <AANLkTi=pz4zYnnUSvb9FjVvCAURruHhJTz7pBKDi8Pdw@mail.gmail.com>

On Wed, 2010-10-20 at 11:10 +0800, Changli Gao wrote:
> On Wed, Oct 20, 2010 at 11:01 AM, Joe Perches <joe@perches.com> wrote:
> > On Wed, 2010-10-20 at 10:54 +0800, Changli Gao wrote:
> >> Signed-off-by: Changli Gao <xiaosuo@gmail.com>
> > []
> >> diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
> >> index 04e9c0d..b92f269 100644
> >> --- a/net/appletalk/sysctl_net_atalk.c
> >> +++ b/net/appletalk/sysctl_net_atalk.c
> >> @@ -42,16 +42,16 @@ static struct ctl_table atalk_table[] = {
> >>       { },
> >>  };
> >> -static struct ctl_path atalk_path[] = {
> >> -     { .procname = "net", },
> >> -     { .procname = "appletalk", },
> >> -     { }
> >> -};
> >> -
> >>  static struct ctl_table_header *atalk_table_header;
> >>
> >>  void atalk_register_sysctl(void)
> >>  {
> >> +     const struct ctl_path atalk_path[] = {
> > Shouldn't all of these be static const struct ?
> They needn't. And some variables are specified __net_initdata currently.

At least some objects are smaller with static.

$ size net/appletalk/sysctl_net_atalk.o.*
   text	   data	    bss	    dec	    hex	filename
    324	    236	     48	    608	    260	net/appletalk/sysctl_net_atalk.o.withstatic
    344	    236	     48	    628	    274	net/appletalk/sysctl_net_atalk.o.withoutstatic

WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Changli Gao <xiaosuo@gmail.com>
Cc: Andy Grover <andy.grover@oracle.com>,
	James Morris <jmorris@namei.org>,
	linux-sctp@vger.kernel.org, rds-devel@oss.oracle.com,
	"Pekka Savola \(ipv6\)" <pekkas@netcore.fi>,
	linux-x25@vger.kernel.org, dccp@vger.kernel.org,
	bridge@lists.linux-foundation.org,
	Andrew@smtp1.linux-foundation.org, coreteam@netfilter.org,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Joerg Reuter <jreuter@yaina.de>,
	Sridhar Samudrala <sri@us.ibm.com>,
	Samuel Ortiz <samuel@sortiz.org>,
	Vlad Yasevich <vladislav.yasevich@hp.com>,
	netfilter@vger.kernel.org,
	Remi Denis-Courmont <remi.denis-courmont@nokia.com>,
	linux-hams@vger.kernel.org,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	netdev@vger.kernel.org, linux-decnet-user@lists.sourceforge.net,
	linux-kernel@vger.ker
Subject: Re: [PATCH] net: make ctl_path local and const
Date: Tue, 19 Oct 2010 20:28:57 -0700	[thread overview]
Message-ID: <1287545337.10409.602.camel@Joe-Laptop> (raw)
In-Reply-To: <AANLkTi=pz4zYnnUSvb9FjVvCAURruHhJTz7pBKDi8Pdw@mail.gmail.com>

On Wed, 2010-10-20 at 11:10 +0800, Changli Gao wrote:
> On Wed, Oct 20, 2010 at 11:01 AM, Joe Perches <joe@perches.com> wrote:
> > On Wed, 2010-10-20 at 10:54 +0800, Changli Gao wrote:
> >> Signed-off-by: Changli Gao <xiaosuo@gmail.com>
> > []
> >> diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
> >> index 04e9c0d..b92f269 100644
> >> --- a/net/appletalk/sysctl_net_atalk.c
> >> +++ b/net/appletalk/sysctl_net_atalk.c
> >> @@ -42,16 +42,16 @@ static struct ctl_table atalk_table[] = {
> >>       { },
> >>  };
> >> -static struct ctl_path atalk_path[] = {
> >> -     { .procname = "net", },
> >> -     { .procname = "appletalk", },
> >> -     { }
> >> -};
> >> -
> >>  static struct ctl_table_header *atalk_table_header;
> >>
> >>  void atalk_register_sysctl(void)
> >>  {
> >> +     const struct ctl_path atalk_path[] = {
> > Shouldn't all of these be static const struct ?
> They needn't. And some variables are specified __net_initdata currently.

At least some objects are smaller with static.

$ size net/appletalk/sysctl_net_atalk.o.*
   text	   data	    bss	    dec	    hex	filename
    324	    236	     48	    608	    260	net/appletalk/sysctl_net_atalk.o.withstatic
    344	    236	     48	    628	    274	net/appletalk/sysctl_net_atalk.o.withoutstatic

  reply	other threads:[~2010-10-20  3:28 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-20  2:54 [Bridge] [PATCH] net: make ctl_path local and const Changli Gao
2010-10-20  2:54 ` Changli Gao
2010-10-20  2:54 ` Changli Gao
2010-10-20  2:54 ` Changli Gao
2010-10-20  2:54 ` Changli Gao
2010-10-20  3:01 ` [Bridge] " Joe Perches
2010-10-20  3:01   ` Joe Perches
2010-10-20  3:01   ` Joe Perches
2010-10-20  3:10   ` [Bridge] " Changli Gao
2010-10-20  3:10     ` Changli Gao
2010-10-20  3:10     ` Changli Gao
2010-10-20  3:28     ` Joe Perches [this message]
2010-10-20  3:28       ` Joe Perches
2010-10-20  3:28       ` Joe Perches
2010-10-20  4:52       ` [Bridge] " Changli Gao
2010-10-20  4:52         ` Changli Gao
2010-10-20  4:52         ` Changli Gao
2010-10-20  4:59         ` [Bridge] " Joe Perches
2010-10-20  4:59           ` Joe Perches
2010-10-20  4:59           ` Joe Perches
2010-10-20  5:10           ` [Bridge] " Changli Gao
2010-10-20  5:10             ` Changli Gao
2010-10-20  5:10             ` Changli Gao

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