sfc: Read-to-clear LM87 alarm/interrupt status at start of day

We do not want to shut down the board based on a fault that has
already been cleared.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/sfc/falcon_boards.c

@@ -99,6 +99,10 @@ static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
 	if (!client)
 		return -EIO;
 
+	/* Read-to-clear alarm/interrupt status */
+	i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
+	i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
+
 	rc = efx_poke_lm87(client, reg_values);
 	if (rc)
 		goto err;