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Date: Thu, 22 Oct 2015 20:25:17 -0700
From: sfeldma@...il.com
To: netdev@...r.kernel.org
Cc: jiri@...nulli.us, vivien.didelot@...oirfairelinux.com
Subject: [PATCH net-next v3 3/3] switchdev: split switchdev_attr into individual structs
From: Scott Feldman <sfeldma@...il.com>
This was already done for switchdev_objs. Changing switchdev_attrs to new
style makes switchdev API consistent for both attrs and objs.
No functional changes here.
Signed-off-by: Scott Feldman <sfeldma@...il.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
v2->v3: remove something that slipped in from the future. I got a piece of
another patchset mixed in with this one. Oops.
v1->v2: add Jiri's Acked-by
.../ethernet/mellanox/mlxsw/spectrum_switchdev.c | 24 ++++--
drivers/net/ethernet/mellanox/mlxsw/switchx2.c | 7 +-
drivers/net/ethernet/rocker/rocker.c | 23 ++++--
include/net/switchdev.h | 42 +++++++++--
net/bridge/br_stp.c | 24 +++---
net/core/net-sysfs.c | 14 ++--
net/core/rtnetlink.c | 14 ++--
net/dsa/slave.c | 10 ++-
net/switchdev/switchdev.c | 77 +++++++++++++-------
9 files changed, 163 insertions(+), 72 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index c39b7a1..efa1aa8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -56,15 +56,19 @@ static int mlxsw_sp_port_attr_get(struct net_device *dev,
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
+ struct switchdev_attr_port_parent_id *parent_id;
+ struct switchdev_attr_port_bridge_flags *brport_flags;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
- attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
- memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
- attr->u.ppid.id_len);
+ parent_id = SWITCHDEV_ATTR_PORT_PARENT_ID(attr);
+ parent_id->ppid.id_len = sizeof(mlxsw_sp->base_mac);
+ memcpy(&parent_id->ppid.id, &mlxsw_sp->base_mac,
+ parent_id->ppid.id_len);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
- attr->u.brport_flags =
+ brport_flags = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS(attr);
+ brport_flags->brport_flags =
(mlxsw_sp_port->learning ? BR_LEARNING : 0) |
(mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0);
break;
@@ -166,20 +170,26 @@ static int mlxsw_sp_port_attr_set(struct net_device *dev,
struct switchdev_trans *trans)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
+ struct switchdev_attr_port_stp_state *stp_state;
+ struct switchdev_attr_port_bridge_flags *brport_flags;
+ struct switchdev_attr_bridge_ageing_time *ageing_time;
int err = 0;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ stp_state = SWITCHDEV_ATTR_PORT_STP_STATE(attr);
err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
- attr->u.stp_state);
+ stp_state->state);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ brport_flags = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS(attr);
err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
- attr->u.brport_flags);
+ brport_flags->brport_flags);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+ ageing_time = SWITCHDEV_ATTR_BRIDGE_AGEING_TIME(attr);
err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
- attr->u.ageing_time);
+ ageing_time->ageing_time);
break;
default:
err = -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/switchx2.c b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
index 2fd2279..edabc82 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
@@ -864,11 +864,14 @@ static int mlxsw_sx_port_attr_get(struct net_device *dev,
{
struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
+ struct switchdev_attr_port_parent_id *parent_id;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
- attr->u.ppid.id_len = sizeof(mlxsw_sx->hw_id);
- memcpy(&attr->u.ppid.id, &mlxsw_sx->hw_id, attr->u.ppid.id_len);
+ parent_id = SWITCHDEV_ATTR_PORT_PARENT_ID(attr);
+ parent_id->ppid.id_len = sizeof(mlxsw_sx->hw_id);
+ memcpy(&parent_id->ppid.id, &mlxsw_sx->hw_id,
+ parent_id->ppid.id_len);
break;
default:
return -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 32a80d2..512dc51 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4327,14 +4327,19 @@ static int rocker_port_attr_get(struct net_device *dev,
{
const struct rocker_port *rocker_port = netdev_priv(dev);
const struct rocker *rocker = rocker_port->rocker;
+ struct switchdev_attr_port_parent_id *parent_id;
+ struct switchdev_attr_port_bridge_flags *brport_flags;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
- attr->u.ppid.id_len = sizeof(rocker->hw.id);
- memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len);
+ parent_id = SWITCHDEV_ATTR_PORT_PARENT_ID(attr);
+ parent_id->ppid.id_len = sizeof(rocker->hw.id);
+ memcpy(&parent_id->ppid.id, &rocker->hw.id,
+ parent_id->ppid.id_len);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
- attr->u.brport_flags = rocker_port->brport_flags;
+ brport_flags = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS(attr);
+ brport_flags->brport_flags = rocker_port->brport_flags;
break;
default:
return -EOPNOTSUPP;
@@ -4378,20 +4383,26 @@ static int rocker_port_attr_set(struct net_device *dev,
struct switchdev_trans *trans)
{
struct rocker_port *rocker_port = netdev_priv(dev);
+ struct switchdev_attr_port_stp_state *stp_state;
+ struct switchdev_attr_port_bridge_flags *brport_flags;
+ struct switchdev_attr_bridge_ageing_time *ageing_time;
int err = 0;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ stp_state = SWITCHDEV_ATTR_PORT_STP_STATE(attr);
err = rocker_port_stp_update(rocker_port, trans, 0,
- attr->u.stp_state);
+ stp_state->state);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ brport_flags = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS(attr);
err = rocker_port_brport_flags_set(rocker_port, trans,
- attr->u.brport_flags);
+ brport_flags->brport_flags);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+ ageing_time = SWITCHDEV_ATTR_BRIDGE_AGEING_TIME(attr);
err = rocker_port_bridge_ageing_time(rocker_port, trans,
- attr->u.ageing_time);
+ ageing_time->ageing_time);
break;
default:
err = -EOPNOTSUPP;
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index bc865e2..6e2e044 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -52,14 +52,44 @@ enum switchdev_attr_id {
struct switchdev_attr {
enum switchdev_attr_id id;
u32 flags;
- union {
- struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
- u8 stp_state; /* PORT_STP_STATE */
- unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
- u32 ageing_time; /* BRIDGE_AGEING_TIME */
- } u;
};
+/* SWITCHDEV_ATTR_ID_PORT_PARENT_ID */
+struct switchdev_attr_port_parent_id {
+ struct switchdev_attr attr;
+ struct netdev_phys_item_id ppid;
+};
+
+#define SWITCHDEV_ATTR_PORT_PARENT_ID(attr) \
+ container_of(attr, struct switchdev_attr_port_parent_id, attr)
+
+/* SWITCHDEV_ATTR_ID_PORT_STP_STATE */
+struct switchdev_attr_port_stp_state {
+ struct switchdev_attr attr;
+ u8 state;
+};
+
+#define SWITCHDEV_ATTR_PORT_STP_STATE(attr) \
+ container_of(attr, struct switchdev_attr_port_stp_state, attr)
+
+/* SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS */
+struct switchdev_attr_port_bridge_flags {
+ struct switchdev_attr attr;
+ unsigned long brport_flags;
+};
+
+#define SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS(attr) \
+ container_of(attr, struct switchdev_attr_port_bridge_flags, attr)
+
+/* SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME */
+struct switchdev_attr_bridge_ageing_time {
+ struct switchdev_attr attr;
+ u32 ageing_time;
+};
+
+#define SWITCHDEV_ATTR_BRIDGE_AGEING_TIME(attr) \
+ container_of(attr, struct switchdev_attr_bridge_ageing_time, attr)
+
enum switchdev_obj_id {
SWITCHDEV_OBJ_ID_UNDEFINED,
SWITCHDEV_OBJ_ID_PORT_VLAN,
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 80c34d7..50bc679 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -39,15 +39,17 @@ void br_log_state(const struct net_bridge_port *p)
void br_set_state(struct net_bridge_port *p, unsigned int state)
{
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_STP_STATE,
- .flags = SWITCHDEV_F_DEFER,
- .u.stp_state = state,
+ struct switchdev_attr_port_stp_state attr = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_PORT_STP_STATE,
+ .flags = SWITCHDEV_F_DEFER,
+ },
+ .state = state,
};
int err;
p->state = state;
- err = switchdev_port_attr_set(p->dev, &attr);
+ err = switchdev_port_attr_set(p->dev, &attr.attr);
if (err)
br_warn(p->br, "error setting offload STP state on port %u(%s)\n",
(unsigned int) p->port_no, p->dev->name);
@@ -569,10 +571,12 @@ int br_set_max_age(struct net_bridge *br, unsigned long val)
int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
{
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
- .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP,
- .u.ageing_time = ageing_time,
+ struct switchdev_attr_bridge_ageing_time attr = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
+ .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP,
+ },
+ .ageing_time = ageing_time,
};
unsigned long t = clock_t_to_jiffies(ageing_time);
int err;
@@ -580,7 +584,7 @@ int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
if (t < BR_MIN_AGEING_TIME || t > BR_MAX_AGEING_TIME)
return -ERANGE;
- err = switchdev_port_attr_set(br->dev, &attr);
+ err = switchdev_port_attr_set(br->dev, &attr.attr);
if (err)
return err;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index f88a62a..1ee6d44 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -470,15 +470,17 @@ static ssize_t phys_switch_id_show(struct device *dev,
return restart_syscall();
if (dev_isalive(netdev)) {
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
- .flags = SWITCHDEV_F_NO_RECURSE,
+ struct switchdev_attr_port_parent_id parent_id = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ },
};
- ret = switchdev_port_attr_get(netdev, &attr);
+ ret = switchdev_port_attr_get(netdev, &parent_id.attr);
if (!ret)
- ret = sprintf(buf, "%*phN\n", attr.u.ppid.id_len,
- attr.u.ppid.id);
+ ret = sprintf(buf, "%*phN\n", parent_id.ppid.id_len,
+ parent_id.ppid.id);
}
rtnl_unlock();
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2477595..656e7a5 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1024,20 +1024,22 @@ static int rtnl_phys_port_name_fill(struct sk_buff *skb, struct net_device *dev)
static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
{
int err;
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
- .flags = SWITCHDEV_F_NO_RECURSE,
+ struct switchdev_attr_port_parent_id parent_id = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ },
};
- err = switchdev_port_attr_get(dev, &attr);
+ err = switchdev_port_attr_get(dev, &parent_id.attr);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
return err;
}
- if (nla_put(skb, IFLA_PHYS_SWITCH_ID, attr.u.ppid.id_len,
- attr.u.ppid.id))
+ if (nla_put(skb, IFLA_PHYS_SWITCH_ID, parent_id.ppid.id_len,
+ parent_id.ppid.id))
return -EMSGSIZE;
return 0;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index b0b8da0..e41803f 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -458,15 +458,17 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
+ struct switchdev_attr_port_stp_state *stp_state;
int ret;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ stp_state = SWITCHDEV_ATTR_PORT_STP_STATE(attr);
if (switchdev_trans_ph_prepare(trans))
ret = ds->drv->port_stp_update ? 0 : -EOPNOTSUPP;
else
ret = ds->drv->port_stp_update(ds, p->port,
- attr->u.stp_state);
+ stp_state->state);
break;
default:
ret = -EOPNOTSUPP;
@@ -595,11 +597,13 @@ static int dsa_slave_port_attr_get(struct net_device *dev,
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
+ struct switchdev_attr_port_parent_id *parent_id;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
- attr->u.ppid.id_len = sizeof(ds->index);
- memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len);
+ parent_id = SWITCHDEV_ATTR_PORT_PARENT_ID(attr);
+ parent_id->ppid.id_len = sizeof(ds->index);
+ memcpy(&parent_id->ppid.id, &ds->index, parent_id->ppid.id_len);
break;
default:
return -EOPNOTSUPP;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index bff8e2b..3cda6fc 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -309,7 +309,27 @@ static void switchdev_port_attr_set_deferred(struct net_device *dev,
static int switchdev_port_attr_set_defer(struct net_device *dev,
const struct switchdev_attr *attr)
{
- return switchdev_deferred_enqueue(dev, attr, sizeof(*attr),
+ size_t size = 0;
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
+ size = sizeof(struct switchdev_attr_port_parent_id);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ size = sizeof(struct switchdev_attr_port_stp_state);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ size = sizeof(struct switchdev_attr_port_bridge_flags);
+ break;
+ case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+ size = sizeof(struct switchdev_attr_bridge_ageing_time);
+ break;
+ default:
+ WARN_ON(!size);
+ return -EINVAL;
+ }
+
+ return switchdev_deferred_enqueue(dev, attr, size,
switchdev_port_attr_set_deferred);
}
@@ -756,19 +776,19 @@ int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
int nlflags)
{
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
+ struct switchdev_attr_port_bridge_flags attr = {
+ .attr.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
};
u16 mode = BRIDGE_MODE_UNDEF;
u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
int err;
- err = switchdev_port_attr_get(dev, &attr);
+ err = switchdev_port_attr_get(dev, &attr.attr);
if (err && err != -EOPNOTSUPP)
return err;
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
- attr.u.brport_flags, mask, nlflags,
+ attr.brport_flags, mask, nlflags,
filter_mask, switchdev_port_vlan_fill);
}
EXPORT_SYMBOL_GPL(switchdev_port_bridge_getlink);
@@ -777,22 +797,22 @@ static int switchdev_port_br_setflag(struct net_device *dev,
struct nlattr *nlattr,
unsigned long brport_flag)
{
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
+ struct switchdev_attr_port_bridge_flags attr = {
+ .attr.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
};
u8 flag = nla_get_u8(nlattr);
int err;
- err = switchdev_port_attr_get(dev, &attr);
+ err = switchdev_port_attr_get(dev, &attr.attr);
if (err)
return err;
if (flag)
- attr.u.brport_flags |= brport_flag;
+ attr.brport_flags |= brport_flag;
else
- attr.u.brport_flags &= ~brport_flag;
+ attr.brport_flags &= ~brport_flag;
- return switchdev_port_attr_set(dev, &attr);
+ return switchdev_port_attr_set(dev, &attr.attr);
}
static const struct nla_policy
@@ -1109,10 +1129,10 @@ static struct net_device *switchdev_get_lowest_dev(struct net_device *dev)
static struct net_device *switchdev_get_dev_by_nhs(struct fib_info *fi)
{
- struct switchdev_attr attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+ struct switchdev_attr_port_parent_id parent_id = {
+ .attr.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
};
- struct switchdev_attr prev_attr;
+ struct switchdev_attr_port_parent_id prev_parent_id;
struct net_device *dev = NULL;
int nhsel;
@@ -1130,14 +1150,15 @@ static struct net_device *switchdev_get_dev_by_nhs(struct fib_info *fi)
if (!dev)
return NULL;
- if (switchdev_port_attr_get(dev, &attr))
+ if (switchdev_port_attr_get(dev, &parent_id.attr))
return NULL;
if (nhsel > 0 &&
- !netdev_phys_item_id_same(&prev_attr.u.ppid, &attr.u.ppid))
+ !netdev_phys_item_id_same(&prev_parent_id.ppid,
+ &parent_id.ppid))
return NULL;
- prev_attr = attr;
+ prev_parent_id = parent_id;
}
return dev;
@@ -1264,20 +1285,24 @@ EXPORT_SYMBOL_GPL(switchdev_fib_ipv4_abort);
static bool switchdev_port_same_parent_id(struct net_device *a,
struct net_device *b)
{
- struct switchdev_attr a_attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
- .flags = SWITCHDEV_F_NO_RECURSE,
+ struct switchdev_attr_port_parent_id parent_a_id = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ },
};
- struct switchdev_attr b_attr = {
- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
- .flags = SWITCHDEV_F_NO_RECURSE,
+ struct switchdev_attr_port_parent_id parent_b_id = {
+ .attr = {
+ .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ },
};
- if (switchdev_port_attr_get(a, &a_attr) ||
- switchdev_port_attr_get(b, &b_attr))
+ if (switchdev_port_attr_get(a, &parent_a_id.attr) ||
+ switchdev_port_attr_get(b, &parent_b_id.attr))
return false;
- return netdev_phys_item_id_same(&a_attr.u.ppid, &b_attr.u.ppid);
+ return netdev_phys_item_id_same(&parent_a_id.ppid, &parent_b_id.ppid);
}
static u32 switchdev_port_fwd_mark_get(struct net_device *dev,
--
1.7.10.4
--
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