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-rw-r--r--drivers/net/dsa/b53/b53_common.c10
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c13
-rw-r--r--drivers/net/dsa/mv88e6xxx/devlink.c3
3 files changed, 24 insertions, 2 deletions
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 79dc77835681..3b49e87e8ef7 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -737,6 +737,15 @@ static void b53_enable_mib(struct b53_device *dev)
b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc);
}
+static void b53_enable_stp(struct b53_device *dev)
+{
+ u8 gc;
+
+ b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
+ gc |= GC_RX_BPDU_EN;
+ b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc);
+}
+
static u16 b53_default_pvid(struct b53_device *dev)
{
if (is5325(dev) || is5365(dev))
@@ -876,6 +885,7 @@ static int b53_switch_reset(struct b53_device *dev)
}
b53_enable_mib(dev);
+ b53_enable_stp(dev);
return b53_flush_arl(dev, FAST_AGE_STATIC);
}
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 29a89ab4b789..08db846cda8d 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1852,6 +1852,8 @@ static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid,
if (!chip->info->ops->vtu_getnext)
return -EOPNOTSUPP;
+ memset(entry, 0, sizeof(*entry));
+
entry->vid = vid ? vid - 1 : mv88e6xxx_max_vid(chip);
entry->valid = false;
@@ -1960,7 +1962,16 @@ static int mv88e6xxx_mst_put(struct mv88e6xxx_chip *chip, u8 sid)
struct mv88e6xxx_mst *mst, *tmp;
int err;
- if (!sid)
+ /* If the SID is zero, it is for a VLAN mapped to the default MSTI,
+ * and mv88e6xxx_stu_setup() made sure it is always present, and thus,
+ * should not be removed here.
+ *
+ * If the chip lacks STU support, numerically the "sid" variable will
+ * happen to also be zero, but we don't want to rely on that fact, so
+ * we explicitly test that first. In that case, there is also nothing
+ * to do here.
+ */
+ if (!mv88e6xxx_has_stu(chip) || !sid)
return 0;
list_for_each_entry_safe(mst, tmp, &chip->msts, node) {
diff --git a/drivers/net/dsa/mv88e6xxx/devlink.c b/drivers/net/dsa/mv88e6xxx/devlink.c
index 795c8df7b6a7..195460a0a0d4 100644
--- a/drivers/net/dsa/mv88e6xxx/devlink.c
+++ b/drivers/net/dsa/mv88e6xxx/devlink.c
@@ -736,7 +736,8 @@ void mv88e6xxx_teardown_devlink_regions_global(struct dsa_switch *ds)
int i;
for (i = 0; i < ARRAY_SIZE(mv88e6xxx_regions); i++)
- dsa_devlink_region_destroy(chip->regions[i]);
+ if (chip->regions[i])
+ dsa_devlink_region_destroy(chip->regions[i]);
}
void mv88e6xxx_teardown_devlink_regions_port(struct dsa_switch *ds, int port)