small drivers/atm/* cleanup

@@ -2874,11 +2874,7 @@
 	// writes to adapter memory (handles IRQ and SMP)
 	spin_lock_init (&dev->mem_lock);
 	
-#if LINUX_VERSION_CODE >= 0x20303
 	init_waitqueue_head (&dev->tx_queue);
-#else
-	dev->tx_queue = 0;
-#endif
 	
 	// vpi in 0..4, vci in 6..10
 	dev->atm_dev->ci_range.vpi_bits = vpi_bits;

@@ -808,7 +808,6 @@
 } r_vc_abr_entry;   
 
 #define MRM 3
-#define MIN(x,y)	((x) < (y)) ? (x) : (y)
 
 typedef struct srv_cls_param {
         u32 class_type;         /* CBR/VBR/ABR/UBR; use the enum above */

@@ -1017,13 +1016,8 @@
         spinlock_t            tx_lock;
         IARTN_Q               tx_return_q;
         u32                   close_pending;
-#if LINUX_VERSION_CODE >= 0x20303
         wait_queue_head_t    close_wait;
         wait_queue_head_t    timeout_wait;
-#else
-        struct wait_queue     *close_wait;
-        struct wait_queue     *timeout_wait;
-#endif
 	struct cpcs_trailer_desc *tx_buf;
         u16 num_tx_desc, tx_buf_sz, rate_limit;
         u32 tx_cell_cnt, tx_pkt_cnt;

@@ -422,11 +422,7 @@
   unsigned int        tx_regions; // number of remaining regions
 
   spinlock_t          mem_lock;
-#if LINUX_VERSION_CODE >= 0x20303
   wait_queue_head_t   tx_queue;
-#else
-  struct wait_queue * tx_queue;
-#endif
 
   u8                  irq;
   long		      flags;

@@ -436,7 +436,7 @@
        if (crm == 0) crm = 1;
        f_abr_vc->f_crm = crm & 0xff;
        f_abr_vc->f_pcr = cellrate_to_float(srv_p->pcr);
-       icr = MIN( srv_p->icr, (srv_p->tbe > srv_p->frtt) ?
+       icr = min( srv_p->icr, (srv_p->tbe > srv_p->frtt) ?
 				((srv_p->tbe/srv_p->frtt)*1000000) :
 				(1000000/(srv_p->frtt/srv_p->tbe)));
        f_abr_vc->f_icr = cellrate_to_float(icr);