netdev - Re: [PATCH net-next] sockopt: Make SO

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Date:	Mon, 22 Oct 2012 23:37:11 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Brian Haley <brian.haley@...com>
Cc:	Pavel Emelyanov <xemul@...allels.com>,
	Linux Netdev List <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH net-next] sockopt: Make SO_BINDTODEVICE readable

On Mon, 2012-10-22 at 17:20 -0400, Brian Haley wrote:

> It's not much different from what's there:
> 
> 	setsockopt("foo");
> 
> 	rename foo -> bar
> 
> 	index = getsockopt();
> 	if_indextoname(index) -> "bar"
> 
> I more raised the issue since you pass a 'char *' to setsockopt() but an 'int *'
> to getsockopt(), I don't think any other value is non-symmetrical like this.
> 
> -Brian

I meant another cpu can be changing dev->name[] content while the
strcpy() is done, and you get a mangled devname, like "for" or "bao"
instead of "foo" or "bar"

But yes, I obviously understood your point about "char *" and "int *"


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