i40e: Remove unused i40e_dcb_hw_get_num_tc

JIRA: https://issues.redhat.com/browse/RHEL-83573

commit 47ea5d4
Author: Dr. David Alan Gilbert <linux@treblig.org>
Date:   Thu Jan 2 17:37:17 2025 +0000

    i40e: Remove unused i40e_dcb_hw_get_num_tc

    The last useof i40e_dcb_hw_get_num_tc() was removed in 2022 by
    commit fe20371 ("Revert "i40e: Fix reset bw limit when DCB enabled
    with 1 TC"")

    Remove it.

    Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
    Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
    Reviewed-by: Tony Nguyen <anthony.l.nguyen@intel.com>
    Link: https://patch.msgid.link/20250102173717.200359-10-linux@treblig.org
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Dennis Chen <dechen@redhat.com>

Author: dchen5022

drivers/net/ethernet/intel/i40e/i40e_dcb.c

@@ -1490,19 +1490,6 @@ void i40e_dcb_hw_set_num_tc(struct i40e_hw *hw, u8 num_tc)
 	wr32(hw, I40E_PRTDCB_GENC, reg);
 }
 
-/**
- * i40e_dcb_hw_get_num_tc
- * @hw: pointer to the hw struct
- *
- * Returns number of traffic classes configured in HW
- **/
-u8 i40e_dcb_hw_get_num_tc(struct i40e_hw *hw)
-{
-	u32 reg = rd32(hw, I40E_PRTDCB_GENC);
-
-	return FIELD_GET(I40E_PRTDCB_GENC_NUMTC_MASK, reg);
-}
-
 /**
  * i40e_dcb_hw_rx_ets_bw_config
  * @hw: pointer to the hw struct

drivers/net/ethernet/intel/i40e/i40e_dcb.h

@@ -253,7 +253,6 @@ void i40e_dcb_hw_rx_cmd_monitor_config(struct i40e_hw *hw,
 void i40e_dcb_hw_pfc_config(struct i40e_hw *hw,
 			    u8 pfc_en, u8 *prio_tc);
 void i40e_dcb_hw_set_num_tc(struct i40e_hw *hw, u8 num_tc);
-u8 i40e_dcb_hw_get_num_tc(struct i40e_hw *hw);
 void i40e_dcb_hw_rx_ets_bw_config(struct i40e_hw *hw, u8 *bw_share,
 				  u8 *mode, u8 *prio_type);
 void i40e_dcb_hw_rx_up2tc_config(struct i40e_hw *hw, u8 *prio_tc);