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net: dsa: setup and teardown master device

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Add DSA helpers to setup and teardown a master net device wired to its
CPU port. This centralizes the dsa_ptr assignment.

This also makes the master ethtool helpers static at the same time.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-11-06 16:11:45 -05:00 • committed by David S. Miller
parent f070464cf0
commit 17a22fcfc8
4 changed files with 51 additions and 39 deletions
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20
net/dsa/legacy.c
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@ -593,15 +593,7 @@ static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
if (!configured)
return -EPROBE_DEFER;
/*
* If we use a tagging format that doesn't have an ethertype
* field, make sure that all packets from this point on get
* sent to the tag format's receive function.
*/
wmb();
dev->dsa_ptr = dst->cpu_dp;
return dsa_master_ethtool_setup(dst->cpu_dp->master);
return dsa_master_setup(dst->cpu_dp->master, dst->cpu_dp);
}
static int dsa_probe(struct platform_device *pdev)
@ -666,15 +658,7 @@ static void dsa_remove_dst(struct dsa_switch_tree *dst)
{
int i;
dsa_master_ethtool_restore(dst->cpu_dp->master);
dst->cpu_dp->master->dsa_ptr = NULL;
/* If we used a tagging format that doesn't have an ethertype
* field, make sure that all packets from this point get sent
* without the tag and go through the regular receive path.
*/
wmb();
dsa_master_teardown(dst->cpu_dp->master);
for (i = 0; i < dst->pd->nr_chips; i++) {
struct dsa_switch *ds = dst->ds[i];