net: lan966x: Fix sleep in atomic context when updating MAC table

The function lan966x_mac_wait_for_completion is used to poll the status
of the MAC table using the function readx_poll_timeout. The problem with
this function is that is called also from atomic context. Therefore
update the function to use readx_poll_timeout_atomic.

Fixes: e18aba8941b40b ("net: lan966x: add mactable support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_mac.c b/drivers/net/ethernet/microchip/lan966x/lan966x_mac.c
index ca5f1177963d1e248447c9bc4b702b9411b3c003..ce5970bdcc6a0791242a6663ae8b1e81f7897ad3 100644 (file)
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_mac.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_mac.c
@@ -40,11 +40,12 @@ static int lan966x_mac_wait_for_completion(struct lan966x *lan966x)
 {
        u32 val;
 
-       return readx_poll_timeout(lan966x_mac_get_status,
-               lan966x, val,
-               (ANA_MACACCESS_MAC_TABLE_CMD_GET(val)) ==
-               MACACCESS_CMD_IDLE,
-               TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
+       return readx_poll_timeout_atomic(lan966x_mac_get_status,
+                                        lan966x, val,
+                                        (ANA_MACACCESS_MAC_TABLE_CMD_GET(val)) ==
+                                        MACACCESS_CMD_IDLE,
+                                        TABLE_UPDATE_SLEEP_US,
+                                        TABLE_UPDATE_TIMEOUT_US);
 }
 
 static void lan966x_mac_select(struct lan966x *lan966x,