From: Kurt Kanzenbach kurt@linutronix.de
[ Upstream commit a7db5ed8632c88c029254d5d74765d52614af3fd ]
Currently the gate control list which is programmed into the hardware is incorrect resulting in wrong traffic schedules. The problem is the loop variables are incremented before they are referenced. Therefore, move the increment to the end of the loop.
Fixes: 24dfc6eb39b2 ("net: dsa: hellcreek: Add TAPRIO offloading support") Signed-off-by: Kurt Kanzenbach kurt@linutronix.de Reviewed-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/hirschmann/hellcreek.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c index 50109218baad..3aab01c25f9a 100644 --- a/drivers/net/dsa/hirschmann/hellcreek.c +++ b/drivers/net/dsa/hirschmann/hellcreek.c @@ -1473,9 +1473,6 @@ static void hellcreek_setup_gcl(struct hellcreek *hellcreek, int port, u16 data; u8 gates;
- cur++; - next++; - if (i == schedule->num_entries) gates = initial->gate_mask ^ cur->gate_mask; @@ -1504,6 +1501,9 @@ static void hellcreek_setup_gcl(struct hellcreek *hellcreek, int port, (initial->gate_mask << TR_GCLCMD_INIT_GATE_STATES_SHIFT); hellcreek_write(hellcreek, data, TR_GCLCMD); + + cur++; + next++; } }