RDMA/qib: Convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Link: https://lore.kernel.org/r/20200903060637.424458-5-allen.lkml@gmail.comSigned-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/qib/qib_iba7322.c

@@ -1733,9 +1733,9 @@ static noinline void handle_7322_errors(struct qib_devdata *dd)
 	return;
 }
 
-static void qib_error_tasklet(unsigned long data)
+static void qib_error_tasklet(struct tasklet_struct *t)
 {
-	struct qib_devdata *dd = (struct qib_devdata *)data;
+	struct qib_devdata *dd = from_tasklet(dd, t, error_tasklet);
 
 	handle_7322_errors(dd);
 	qib_write_kreg(dd, kr_errmask, dd->cspec->errormask);
@@ -3537,8 +3537,7 @@ static void qib_setup_7322_interrupt(struct qib_devdata *dd, int clearpend)
 	for (i = 0; i < ARRAY_SIZE(redirect); i++)
 		qib_write_kreg(dd, kr_intredirect + i, redirect[i]);
 	dd->cspec->main_int_mask = mask;
-	tasklet_init(&dd->error_tasklet, qib_error_tasklet,
-		(unsigned long)dd);
+	tasklet_setup(&dd->error_tasklet, qib_error_tasklet);
 }
 
 /**

drivers/infiniband/hw/qib/qib_sdma.c

@@ -62,7 +62,7 @@ static void sdma_get(struct qib_sdma_state *);
 static void sdma_put(struct qib_sdma_state *);
 static void sdma_set_state(struct qib_pportdata *, enum qib_sdma_states);
 static void sdma_start_sw_clean_up(struct qib_pportdata *);
-static void sdma_sw_clean_up_task(unsigned long);
+static void sdma_sw_clean_up_task(struct tasklet_struct *);
 static void unmap_desc(struct qib_pportdata *, unsigned);
 
 static void sdma_get(struct qib_sdma_state *ss)
@@ -119,9 +119,10 @@ static void clear_sdma_activelist(struct qib_pportdata *ppd)
 	}
 }
 
-static void sdma_sw_clean_up_task(unsigned long opaque)
+static void sdma_sw_clean_up_task(struct tasklet_struct *t)
 {
-	struct qib_pportdata *ppd = (struct qib_pportdata *) opaque;
+	struct qib_pportdata *ppd = from_tasklet(ppd, t,
+						 sdma_sw_clean_up_task);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ppd->sdma_lock, flags);
@@ -436,8 +437,7 @@ int qib_setup_sdma(struct qib_pportdata *ppd)
 
 	INIT_LIST_HEAD(&ppd->sdma_activelist);
 
-	tasklet_init(&ppd->sdma_sw_clean_up_task, sdma_sw_clean_up_task,
-		(unsigned long)ppd);
+	tasklet_setup(&ppd->sdma_sw_clean_up_task, sdma_sw_clean_up_task);
 
 	ret = dd->f_init_sdma_regs(ppd);
 	if (ret)