Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

The netfilter conflicts were rather simple overlapping
changes.

However, the cls_tcindex.c stuff was a bit more complex.

On the 'net' side, Cong is fixing several races and memory
leaks.  Whilst on the 'net-next' side we have Vlad adding
the rtnl-ness support.

What I've decided to do, in order to resolve this, is revert the
conversion over to using a workqueue that Cong did, bringing us back
to pure RCU.  I did it this way because I believe that either Cong's
races don't apply with have Vlad did things, or Cong will have to
implement the race fix slightly differently.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 22 insertions, 6 deletions

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 39c780363764..32e7af5caa69 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -261,6 +261,7 @@ static irqreturn_t mv88e6xxx_g1_irq_thread_work(struct mv88e6xxx_chip *chip)
 	unsigned int sub_irq;
 	unsigned int n;
 	u16 reg;
+	u16 ctl1;
 	int err;
 
 	mutex_lock(&chip->reg_lock);
@@ -270,13 +271,28 @@ static irqreturn_t mv88e6xxx_g1_irq_thread_work(struct mv88e6xxx_chip *chip)
 	if (err)
 		goto out;
 
-	for (n = 0; n < chip->g1_irq.nirqs; ++n) {
-		if (reg & (1 << n)) {
-			sub_irq = irq_find_mapping(chip->g1_irq.domain, n);
-			handle_nested_irq(sub_irq);
-			++nhandled;
+	do {
+		for (n = 0; n < chip->g1_irq.nirqs; ++n) {
+			if (reg & (1 << n)) {
+				sub_irq = irq_find_mapping(chip->g1_irq.domain,
+							   n);
+				handle_nested_irq(sub_irq);
+				++nhandled;
+			}
 		}
-	}
+
+		mutex_lock(&chip->reg_lock);
+		err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, &ctl1);
+		if (err)
+			goto unlock;
+		err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &reg);
+unlock:
+		mutex_unlock(&chip->reg_lock);
+		if (err)
+			goto out;
+		ctl1 &= GENMASK(chip->g1_irq.nirqs, 0);
+	} while (reg & ctl1);
+
 out:
 	return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
 }