On Mon, 2014-10-06 at 20:15 +0200, Fabian Frederick wrote:
> -Add __rcu annotation on table to fix sparse warnings:
> net/phonet/pn_dev.c:279:25: warning: incorrect type in assignment (different 
> address spaces)
> net/phonet/pn_dev.c:279:25:    expected struct net_device *<noident>
> net/phonet/pn_dev.c:279:25:    got void [noderef] <asn:4>*<noident>
> net/phonet/pn_dev.c:376:17: warning: incorrect type in assignment (different 
> address spaces)
> net/phonet/pn_dev.c:376:17:    expected struct net_device *volatile <noident>
> net/phonet/pn_dev.c:376:17:    got struct net_device [noderef] 
> <asn:4>*<noident>
> net/phonet/pn_dev.c:392:17: warning: incorrect type in assignment (different 
> address spaces)
> net/phonet/pn_dev.c:392:17:    expected struct net_device *<noident>
> net/phonet/pn_dev.c:392:17:    got void [noderef] <asn:4>*<noident>
> 
> -Access table with rcu_access_pointer (fixes the following sparse errors):
> net/phonet/pn_dev.c:278:25: error: incompatible types in comparison 
> expression (different address spaces)
> net/phonet/pn_dev.c:391:17: error: incompatible types in comparison 
> expression (different address spaces)
> 
> Suggested-by: Eric Dumazet <eduma...@google.com>
> Signed-off-by: Fabian Frederick <f...@skynet.be>
> ---
> V2: use rcu_access_pointer instead of rcu_dereference out of rcu_read_lock 
> context
>     (suggested by Eric Dumazet).

Acked-by: Eric Dumazet <eduma...@google.com>


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