scsi: hpsa: Simplify {clear|set}_bit() parameters

{clear|set}_bit() can take an almost arbitrarily large bit number, so there
is no need to manually compute addresses. This is just redundant.

Link: https://lore.kernel.org/r/c3429a22023f58e5e5cc65d6cd7e83fb2bd9b870.1658340442.git.christophe.jaillet@wanadoo.frTested-by: Don Brace <don.brace@microchip.com>
Acked-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hpsa.c

@@ -6233,8 +6233,7 @@ static struct CommandList *cmd_alloc(struct ctlr_info *h)
 			offset = (i + 1) % HPSA_NRESERVED_CMDS;
 			continue;
 		}
-		set_bit(i & (BITS_PER_LONG - 1),
-			h->cmd_pool_bits + (i / BITS_PER_LONG));
+		set_bit(i, h->cmd_pool_bits);
 		break; /* it's ours now. */
 	}
 	hpsa_cmd_partial_init(h, i, c);
@@ -6261,8 +6260,7 @@ static void cmd_free(struct ctlr_info *h, struct CommandList *c)
 		int i;
 
 		i = c - h->cmd_pool;
-		clear_bit(i & (BITS_PER_LONG - 1),
-			  h->cmd_pool_bits + (i / BITS_PER_LONG));
+		clear_bit(i, h->cmd_pool_bits);
 	}
 }