netdev - Re: [PATCH net-next 2/2] net: openvswitch: make masks cache size configurable

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Date:   Wed, 22 Jul 2020 08:21:28 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Eelco Chaudron <echaudro@...hat.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, dev@...nvswitch.org,
        pabeni@...hat.com, pshelar@....org
Subject: Re: [PATCH net-next 2/2] net: openvswitch: make masks cache size
 configurable

On Wed, 22 Jul 2020 10:27:52 +0200 Eelco Chaudron wrote:
> This patch makes the masks cache size configurable, or with
> a size of 0, disable it.
> 
> Reviewed-by: Paolo Abeni <pabeni@...hat.com>
> Signed-off-by: Eelco Chaudron <echaudro@...hat.com>

Hi Elco!

This patch adds a bunch of new sparse warnings:

net/openvswitch/flow_table.c:376:23: warning: incorrect type in assignment (different address spaces)
net/openvswitch/flow_table.c:376:23:    expected struct mask_cache_entry *cache
net/openvswitch/flow_table.c:376:23:    got void [noderef] __percpu *
net/openvswitch/flow_table.c:386:25: warning: incorrect type in assignment (different address spaces)
net/openvswitch/flow_table.c:386:25:    expected struct mask_cache_entry [noderef] __percpu *mask_cache
net/openvswitch/flow_table.c:386:25:    got struct mask_cache_entry *cache
net/openvswitch/flow_table.c:411:27: warning: incorrect type in assignment (different address spaces)
net/openvswitch/flow_table.c:411:27:    expected struct mask_cache [noderef] __rcu *mask_cache
net/openvswitch/flow_table.c:411:27:    got struct mask_cache *
net/openvswitch/flow_table.c:440:35: warning: incorrect type in argument 1 (different address spaces)
net/openvswitch/flow_table.c:440:35:    expected struct mask_cache *mc
net/openvswitch/flow_table.c:440:35:    got struct mask_cache [noderef] __rcu *mask_cache