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From: Brian Haley <brian.haley@hp.com>
To: dccp@vger.kernel.org
Subject: Re: [PATCH 1/4] [IPv6] Add link and site-local scope inline
Date: Fri, 06 Apr 2007 06:37:52 +0000	[thread overview]
Message-ID: <4615EAC0.3080709@hp.com> (raw)
In-Reply-To: <4615BCA1.6000608@hp.com>



YOSHIFUJI Hideaki / ???? wrote:
> In article <4615BCA1.6000608@hp.com> (at Thu, 05 Apr 2007 23:21:05 -0400), Brian Haley <brian.haley@hp.com> says:
> 
>> Add link and site-local scope inline to avoid calls to ipv6_addr_type().
>>
> 
> I disagree.  Multicast scopes should also be handled appropriately.

Yes, I totally missed that 
ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)) in __ipv6_addr_type(), so 
the linklocal inline probably isn't worth it since it would have to be 
something like:

static inline int ipv6_addr_scope_linklocal(const struct in6_addr *a)
{
return ((a->s6_addr32[0] & htonl(0xFFC00000)) = htonl(0xFE800000) ||
         ((a->s6_addr32[0] & htonl(0xFF000000)) = htonl(0xFF000000) &&
          ((a)->s6_addr[1] & 0x0f) = IPV6_ADDR_SCOPE_LINKLOCAL)))
}

That's not that clean an inline anymore, but still doable...

I'll clean-up the rest based on your comments and re-send.

-Brian

WARNING: multiple messages have this Message-ID (diff)
From: Brian Haley <brian.haley@hp.com>
To: "YOSHIFUJI Hideaki / ????" <yoshfuji@linux-ipv6.org>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
	dccp@vger.kernel.org, lksctp-developers@lists.sourceforge.net
Subject: Re: [PATCH 1/4] [IPv6] Add link and site-local scope inline
Date: Fri, 06 Apr 2007 02:37:52 -0400	[thread overview]
Message-ID: <4615EAC0.3080709@hp.com> (raw)
In-Reply-To: <20070406.122433.60252840.yoshfuji@linux-ipv6.org>



YOSHIFUJI Hideaki / ???? wrote:
> In article <4615BCA1.6000608@hp.com> (at Thu, 05 Apr 2007 23:21:05 -0400), Brian Haley <brian.haley@hp.com> says:
> 
>> Add link and site-local scope inline to avoid calls to ipv6_addr_type().
>>
> 
> I disagree.  Multicast scopes should also be handled appropriately.

Yes, I totally missed that 
ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)) in __ipv6_addr_type(), so 
the linklocal inline probably isn't worth it since it would have to be 
something like:

static inline int ipv6_addr_scope_linklocal(const struct in6_addr *a)
{
return ((a->s6_addr32[0] & htonl(0xFFC00000)) == htonl(0xFE800000) ||
         ((a->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000) &&
          ((a)->s6_addr[1] & 0x0f) == IPV6_ADDR_SCOPE_LINKLOCAL)))
}

That's not that clean an inline anymore, but still doable...

I'll clean-up the rest based on your comments and re-send.

-Brian

  parent reply	other threads:[~2007-04-06  6:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-06  3:21 [PATCH 1/4] [IPv6] Add link and site-local scope inline Brian Haley
2007-04-06  3:21 ` Brian Haley
2007-04-06  3:24 ` 
2007-04-06  3:24   ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-06  6:37 ` Brian Haley [this message]
2007-04-06  6:37   ` Brian Haley
2007-04-06  6:55 ` 
2007-04-06  7:00   ` YOSHIFUJI Hideaki / 吉藤英明
     [not found] <11758281863002-git-send-email-brian.haley@hp.com>
     [not found] ` <117582818660-git-send-email-brian.haley@hp.com>
     [not found]   ` <11758281864173-git-send-email-brian.haley@hp.com>
     [not found]   ` <151538c13022864224f5ff440e1147f884abb492.1175794415.git.brian.haley@hp.com>
2007-04-06  3:21     ` [PATCH 2/4] [IPv6] Add multicast address type inline Brian Haley
2007-04-06  3:42       ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-06  3:21     ` [PATCH 3/4] Add mapped " Brian Haley
2007-04-06  3:47       ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-06  3:21     ` [PATCH 4/4] Add loopback " Brian Haley
2007-04-06  3:51       ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-06  6:38         ` Brian Haley

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