net: wan: farsync: use new tasklet API

This converts the driver to use the new tasklet API introduced in
commit 12cc923f1ccc ("tasklet: Introduce new initialization API")

The new API changes the argument passed to callback functions,
but fortunately it is unused so it is straight forward to use
DECLARE_TASKLET rather than DECLARE_TASLKLET_OLD.

Signed-off-by: Emil Renner Berthing <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/wan/farsync.c

···
 
 static void do_bottom_half_tx(struct fst_card_info *card);
 static void do_bottom_half_rx(struct fst_card_info *card);
-static void fst_process_tx_work_q(unsigned long work_q);
-static void fst_process_int_work_q(unsigned long work_q);
+static void fst_process_tx_work_q(struct tasklet_struct *unused);
+static void fst_process_int_work_q(struct tasklet_struct *unused);
 
-static DECLARE_TASKLET_OLD(fst_tx_task, fst_process_tx_work_q);
-static DECLARE_TASKLET_OLD(fst_int_task, fst_process_int_work_q);
+static DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q);
+static DECLARE_TASKLET(fst_int_task, fst_process_int_work_q);
 
 static struct fst_card_info *fst_card_array[FST_MAX_CARDS];
 static spinlock_t fst_work_q_lock;
···
 }
 
 static void
-fst_process_tx_work_q(unsigned long /*void **/work_q)
+fst_process_tx_work_q(struct tasklet_struct *unused)
 {
 	unsigned long flags;
 	u64 work_txq;
···
 }
 
 static void
-fst_process_int_work_q(unsigned long /*void **/work_q)
+fst_process_int_work_q(struct tasklet_struct *unused)
 {
 	unsigned long flags;
 	u64 work_intq;