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

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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>
This commit is contained in:
Horatiu Vultur 2022-01-25 12:48:16 +01:00 committed by David S. Miller
parent b6ab149654
commit 77bdaf39f3
1 changed files with 6 additions and 5 deletions
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11
drivers/net/ethernet/microchip/lan966x/lan966x_mac.c
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@ -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,