i40e: Remove unused i40e_del_filter

JIRA: https://issues.redhat.com/browse/RHEL-83569

commit 38dfb07
Author: Dr. David Alan Gilbert <linux@treblig.org>
Date:   Thu Jan 2 17:37:14 2025 +0000

    i40e: Remove unused i40e_del_filter

    The last use of i40e_del_filter() was removed in 2016 by
    commit 9569a9a ("i40e: when adding or removing MAC filters, correctly
    handle VLANs")

    Remove it.

    Fix up a comment that referenced it.

    Note: The __ version of this function is still used.

    Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
    Reviewed-by: Tony Nguyen <anthony.l.nguyen@intel.com>
    Link: https://patch.msgid.link/20250102173717.200359-7-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.h

@@ -1198,7 +1198,6 @@ void i40e_set_ethtool_ops(struct net_device *netdev);
 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 					const u8 *macaddr, s16 vlan);
 void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f);
-void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan);
 int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 				u16 uplink, u32 param1);

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -1666,9 +1666,8 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
  * @vsi: VSI to remove from
  * @f: the filter to remove from the list
  *
- * This function should be called instead of i40e_del_filter only if you know
- * the exact filter you will remove already, such as via i40e_find_filter or
- * i40e_find_mac.
+ * This function requires you've found * the exact filter you will remove
+ * already, such as via i40e_find_filter or i40e_find_mac.
  *
  * NOTE: This function is expected to be called with mac_filter_hash_lock
  * being held.
@@ -1697,29 +1696,6 @@ void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f)
 	set_bit(__I40E_MACVLAN_SYNC_PENDING, vsi->back->state);
 }
 
-/**
- * i40e_del_filter - Remove a MAC/VLAN filter from the VSI
- * @vsi: the VSI to be searched
- * @macaddr: the MAC address
- * @vlan: the VLAN
- *
- * NOTE: This function is expected to be called with mac_filter_hash_lock
- * being held.
- * ANOTHER NOTE: This function MUST be called from within the context of
- * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe()
- * instead of list_for_each_entry().
- **/
-void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan)
-{
-	struct i40e_mac_filter *f;
-
-	if (!vsi || !macaddr)
-		return;
-
-	f = i40e_find_filter(vsi, macaddr, vlan);
-	__i40e_del_filter(vsi, f);
-}
-
 /**
  * i40e_add_mac_filter - Add a MAC filter for all active VLANs
  * @vsi: the VSI to be searched