AcoSail/kernel_optimize_test
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net: dsa: use cpu_switch instead of ds[0]

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Now that the DSA Ethernet switches are true Linux devices, the CPU
switch is not necessarily the first one. If its address is higher than
the second switch on the same MDIO bus, its index will be 1, not 0.

Avoid any confusion by using dst->cpu_switch instead of dst->ds[0].

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-01-17 20:41:39 -05:00 committed by David S. Miller
parent b22de49086
commit 9520ed8fb8
6 changed files with 11 additions and 11 deletions
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2
net/dsa/dsa.c
View File

@ -868,7 +868,7 @@ static void dsa_remove_dst(struct dsa_switch_tree *dst)
dsa_switch_destroy(ds);
}
dsa_cpu_port_ethtool_restore(dst->ds[0]);
dsa_cpu_port_ethtool_restore(dst->cpu_switch);
dev_put(dst->master_netdev);
}

8
net/dsa/dsa2.c
View File

@ -377,8 +377,8 @@ static int dsa_dst_apply(struct dsa_switch_tree *dst)
return err;
}
if (dst->ds[0]) {
err = dsa_cpu_port_ethtool_setup(dst->ds[0]);
if (dst->cpu_switch) {
err = dsa_cpu_port_ethtool_setup(dst->cpu_switch);
if (err)
return err;
}
@ -418,8 +418,8 @@ static void dsa_dst_unapply(struct dsa_switch_tree *dst)
dsa_ds_unapply(dst, ds);
}
if (dst->ds[0])
dsa_cpu_port_ethtool_restore(dst->ds[0]);
if (dst->cpu_switch)
dsa_cpu_port_ethtool_restore(dst->cpu_switch);
pr_info("DSA: tree %d unapplied\n", dst->tree);
dst->applied = false;

6
net/dsa/slave.c
View File

@ -781,7 +781,7 @@ static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
uint64_t *data)
{
struct dsa_switch_tree *dst = dev->dsa_ptr;
struct dsa_switch *ds = dst->ds[0];
struct dsa_switch *ds = dst->cpu_switch;
s8 cpu_port = dst->cpu_port;
int count = 0;
@ -798,7 +798,7 @@ static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset)
{
struct dsa_switch_tree *dst = dev->dsa_ptr;
struct dsa_switch *ds = dst->ds[0];
struct dsa_switch *ds = dst->cpu_switch;
int count = 0;
if (dst->master_ethtool_ops.get_sset_count)
@ -814,7 +814,7 @@ static void dsa_cpu_port_get_strings(struct net_device *dev,
uint32_t stringset, uint8_t *data)
{
struct dsa_switch_tree *dst = dev->dsa_ptr;
struct dsa_switch *ds = dst->ds[0];
struct dsa_switch *ds = dst->cpu_switch;
s8 cpu_port = dst->cpu_port;
int len = ETH_GSTRING_LEN;
int mcount = 0, count;

2
net/dsa/tag_brcm.c
View File

@ -102,7 +102,7 @@ static int brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
if (unlikely(dst == NULL))
goto out_drop;
ds = dst->ds[0];
ds = dst->cpu_switch;
skb = skb_unshare(skb, GFP_ATOMIC);
if (skb == NULL)

2
net/dsa/tag_qca.c
View File

@ -104,7 +104,7 @@ static int qca_tag_rcv(struct sk_buff *skb, struct net_device *dev,
/* This protocol doesn't support cascading multiple switches so it's
* safe to assume the switch is first in the tree
*/
ds = dst->ds[0];
ds = dst->cpu_switch;
if (!ds)
goto out_drop;

2
net/dsa/tag_trailer.c
View File

@ -67,7 +67,7 @@ static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
if (unlikely(dst == NULL))
goto out_drop;
ds = dst->ds[0];
ds = dst->cpu_switch;
skb = skb_unshare(skb, GFP_ATOMIC);
if (skb == NULL)