netdev - Re: [PATCH v3 net-next 0/5] IGMP snooping for local traffic

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Date:   Thu, 09 Nov 2017 09:44:11 -0500
From:   Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:     David Miller <davem@...emloft.net>, andrew@...n.ch
Cc:     netdev@...r.kernel.org, f.fainelli@...il.com
Subject: Re: [PATCH v3 net-next 0/5] IGMP snooping for local traffic

Hi David,

David Miller <davem@...emloft.net> writes:

> From: David Miller <davem@...emloft.net>
> Date: Thu, 09 Nov 2017 11:30:32 +0900 (KST)
>
>> Series applied, with the spurious whitespace change removed from patch
>> #5.
>
> Actually I had to revert, this doesn't build:
>
> net/dsa/slave.c: In function ‘dsa_slave_port_obj_add’:
> net/dsa/slave.c:311:26: warning: passing argument 1 of ‘dsa_port_mdb_add’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
>    err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj),
>                           ^~
> In file included from net/dsa/slave.c:26:0:
> net/dsa/dsa_priv.h:150:5: note: expected ‘struct dsa_port *’ but argument is of type ‘const struct dsa_port *’
>  int dsa_port_mdb_add(struct dsa_port *dp,
>      ^~~~~~~~~~~~~~~~
> net/dsa/slave.c: In function ‘dsa_slave_port_obj_del’:
> net/dsa/slave.c:340:26: warning: passing argument 1 of ‘dsa_port_mdb_del’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
>    err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj));
>                           ^~
> In file included from net/dsa/slave.c:26:0:
> net/dsa/dsa_priv.h:153:5: note: expected ‘struct dsa_port *’ but argument is of type ‘const struct dsa_port *’
>  int dsa_port_mdb_del(struct dsa_port *dp,
>      ^~~~~~~~~~~~~~~~
>   C-c C-cmake[3]: *** [scripts/Makefile.build:320: drivers/net/team/team.o] Interrupt

This patch series is passing cpu_dp to dsa_port_mdb_* which is const.
I have sent a revert patch to net-next to make it non-const again, so
patch series like this can be applied without compile error.


Thanks,

        Vivien