From: David Ahern <dsahern@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>,
Crestez Dan Leonard <cdleonard@gmail.com>,
netdev@vger.kernel.org,
Jonathan Toppins <jtoppins@cumulusnetworks.com>
Subject: Re: [PATCH v2 net] tcp: md5: do not use alloc_percpu()
Date: Thu, 23 Oct 2014 17:36:15 -0600 [thread overview]
Message-ID: <544990EF.6090803@gmail.com> (raw)
In-Reply-To: <1414105068.20845.38.camel@edumazet-glaptop2.roam.corp.google.com>
On 10/23/14, 4:57 PM, Eric Dumazet wrote:
> On Thu, 2014-10-23 at 14:44 -0600, David Ahern wrote:
>
>> global variables do not need to be initialized to 0.
>>
>
> Compilers are generating the same code nowadays.
> They place such zero variables in bss anyway.
> They finally got this right, maybe years ago.
>
>
> $ nm -v net/ipv4/tcp.o | grep populated
> 0000000000000078 b tcp_md5sig_pool_populated
Right. I was referring to coding standards. As I recall checkpatch
throws a warning about it.
David
next prev parent reply other threads:[~2014-10-23 23:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-22 18:55 [RFC] tcp md5 use of alloc_percpu Crestez Dan Leonard
2014-10-22 19:12 ` Eric Dumazet
2014-10-22 21:35 ` Jonathan Toppins
2014-10-22 23:05 ` Crestez Dan Leonard
2014-10-24 9:33 ` Herbert Xu
2014-10-22 21:53 ` David Miller
2014-10-22 23:38 ` Jonathan Toppins
2014-10-23 1:00 ` Crestez Dan Leonard
2014-10-23 1:47 ` Eric Dumazet
2014-10-23 4:40 ` David Ahern
2014-10-23 5:23 ` Eric Dumazet
2014-10-23 5:38 ` Eric Dumazet
2014-10-23 6:58 ` Jonathan Toppins
2014-10-23 13:21 ` Eric Dumazet
2014-10-23 14:43 ` Eric Dumazet
2014-10-23 16:17 ` Crestez Dan Leonard
2014-10-23 19:22 ` Eric Dumazet
2014-10-23 16:33 ` [PATCH net] tcp: md5: percpu tcp_md5sig_pool must not span pages Eric Dumazet
2014-10-23 19:34 ` Eric Dumazet
2014-10-23 19:58 ` [PATCH v2 net] tcp: md5: do not use alloc_percpu() Eric Dumazet
2014-10-23 20:44 ` David Ahern
2014-10-23 22:57 ` Eric Dumazet
2014-10-23 23:36 ` David Ahern [this message]
2014-10-24 3:45 ` David Ahern
2014-10-25 20:11 ` David Miller
2014-10-23 14:46 ` [RFC] tcp md5 use of alloc_percpu Crestez Dan Leonard
2014-10-23 13:03 ` Crestez Dan Leonard
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