qed: avoid truncating work queue length

clang complains that the temporary string for the name passed into
alloc_workqueue() is too short for its contents:

drivers/net/ethernet/qlogic/qed/qed_main.c:1218:3: error: 'snprintf' will always be truncated; specified size is 16, but format string expands to at least 18 [-Werror,-Wformat-truncation]

There is no need for a temporary buffer, and the actual name of a workqueue
is 32 bytes (WQ_NAME_LEN), so just use the interface as intended to avoid
the truncation.

Fixes: 59ccf86f ("qed: Add driver infrastucture for handling mfw requests.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240326223825.4084412-4-arnd@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/qlogic/qed/qed_main.c

@@ -1205,7 +1205,6 @@ static void qed_slowpath_task(struct work_struct *work)
 static int qed_slowpath_wq_start(struct qed_dev *cdev)
 {
 	struct qed_hwfn *hwfn;
-	char name[NAME_SIZE];
 	int i;
 
 	if (IS_VF(cdev))
@@ -1214,11 +1213,11 @@ static int qed_slowpath_wq_start(struct qed_dev *cdev)
 	for_each_hwfn(cdev, i) {
 		hwfn = &cdev->hwfns[i];
 
-		snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x",
-			 cdev->pdev->bus->number,
-			 PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
+		hwfn->slowpath_wq = alloc_workqueue("slowpath-%02x:%02x.%02x",
+					 0, 0, cdev->pdev->bus->number,
+					 PCI_SLOT(cdev->pdev->devfn),
+					 hwfn->abs_pf_id);
 
-		hwfn->slowpath_wq = alloc_workqueue(name, 0, 0);
 		if (!hwfn->slowpath_wq) {
 			DP_NOTICE(hwfn, "Cannot create slowpath workqueue\n");
 			return -ENOMEM;