struct scb_platform_data;
 
 /****************************** Useful Macros *********************************/
-#ifndef MAX
-#define MAX(a,b) (((a) > (b)) ? (a) : (b))
-#endif
-
-#ifndef MIN
-#define MIN(a,b) (((a) < (b)) ? (a) : (b))
-#endif
-
 #ifndef TRUE
 #define TRUE 1
 #endif
 
                transinfo = &tinfo->goal;
        *ppr_options &= (transinfo->ppr_options|MSG_EXT_PPR_PCOMP_EN);
        if (transinfo->width == MSG_EXT_WDTR_BUS_8_BIT) {
-               maxsync = MAX(maxsync, AHD_SYNCRATE_ULTRA2);
+               maxsync = max(maxsync, (u_int)AHD_SYNCRATE_ULTRA2);
                *ppr_options &= ~MSG_EXT_PPR_DT_REQ;
        }
        if (transinfo->period == 0) {
                *period = 0;
                *ppr_options = 0;
        } else {
-               *period = MAX(*period, transinfo->period);
+               *period = max(*period, (u_int)transinfo->period);
                ahd_find_syncrate(ahd, period, ppr_options, maxsync);
        }
 }
                        maxoffset = MAX_OFFSET_PACED;
        } else
                maxoffset = MAX_OFFSET_NON_PACED;
-       *offset = MIN(*offset, maxoffset);
+       *offset = min(*offset, maxoffset);
        if (tinfo != NULL) {
                if (role == ROLE_TARGET)
-                       *offset = MIN(*offset, tinfo->user.offset);
+                       *offset = min(*offset, (u_int)tinfo->user.offset);
                else
-                       *offset = MIN(*offset, tinfo->goal.offset);
+                       *offset = min(*offset, (u_int)tinfo->goal.offset);
        }
 }
 
        }
        if (tinfo != NULL) {
                if (role == ROLE_TARGET)
-                       *bus_width = MIN(tinfo->user.width, *bus_width);
+                       *bus_width = min((u_int)tinfo->user.width, *bus_width);
                else
-                       *bus_width = MIN(tinfo->goal.width, *bus_width);
+                       *bus_width = min((u_int)tinfo->goal.width, *bus_width);
        }
 }
 
 #endif
        }
 
-       newcount = MIN(scb_data->sense_left, scb_data->scbs_left);
-       newcount = MIN(newcount, scb_data->sgs_left);
-       newcount = MIN(newcount, (AHD_SCB_MAX_ALLOC - scb_data->numscbs));
+       newcount = min(scb_data->sense_left, scb_data->scbs_left);
+       newcount = min(newcount, scb_data->sgs_left);
+       newcount = min(newcount, (AHD_SCB_MAX_ALLOC - scb_data->numscbs));
        for (i = 0; i < newcount; i++) {
                struct scb_platform_data *pdata;
                u_int col_tag;
                if (skip_addr > i) {
                        int end_addr;
 
-                       end_addr = MIN(address, skip_addr);
+                       end_addr = min(address, skip_addr);
                        address_offset += end_addr - i;
                        i = skip_addr;
                } else {
 
                        u_int sense_offset;
 
                        if (scb->flags & SCB_SENSE) {
-                               sense_size = MIN(sizeof(struct scsi_sense_data)
+                               sense_size = min(sizeof(struct scsi_sense_data)
                                               - ahd_get_sense_residual(scb),
-                                                sizeof(cmd->sense_buffer));
+                                                (u_long)sizeof(cmd->sense_buffer));
                                sense_offset = 0;
                        } else {
                                /*
                                 */
                                siu = (struct scsi_status_iu_header *)
                                    scb->sense_data;
-                               sense_size = MIN(scsi_4btoul(siu->sense_length),
+                               sense_size = min_t(size_t,
+                                               scsi_4btoul(siu->sense_length),
                                                sizeof(cmd->sense_buffer));
                                sense_offset = SIU_SENSE_OFFSET(siu);
                        }
 
 struct seeprom_descriptor;
 
 /****************************** Useful Macros *********************************/
-#ifndef MAX
-#define MAX(a,b) (((a) > (b)) ? (a) : (b))
-#endif
-
-#ifndef MIN
-#define MIN(a,b) (((a) < (b)) ? (a) : (b))
-#endif
-
 #ifndef TRUE
 #define TRUE 1
 #endif
 
                transinfo = &tinfo->goal;
        *ppr_options &= transinfo->ppr_options;
        if (transinfo->width == MSG_EXT_WDTR_BUS_8_BIT) {
-               maxsync = MAX(maxsync, AHC_SYNCRATE_ULTRA2);
+               maxsync = max(maxsync, (u_int)AHC_SYNCRATE_ULTRA2);
                *ppr_options &= ~MSG_EXT_PPR_DT_REQ;
        }
        if (transinfo->period == 0) {
                *ppr_options = 0;
                return (NULL);
        }
-       *period = MAX(*period, transinfo->period);
+       *period = max(*period, (u_int)transinfo->period);
        return (ahc_find_syncrate(ahc, period, ppr_options, maxsync));
 }
 
                else
                        maxoffset = MAX_OFFSET_8BIT;
        }
-       *offset = MIN(*offset, maxoffset);
+       *offset = min(*offset, maxoffset);
        if (tinfo != NULL) {
                if (role == ROLE_TARGET)
-                       *offset = MIN(*offset, tinfo->user.offset);
+                       *offset = min(*offset, (u_int)tinfo->user.offset);
                else
-                       *offset = MIN(*offset, tinfo->goal.offset);
+                       *offset = min(*offset, (u_int)tinfo->goal.offset);
        }
 }
 
        }
        if (tinfo != NULL) {
                if (role == ROLE_TARGET)
-                       *bus_width = MIN(tinfo->user.width, *bus_width);
+                       *bus_width = min((u_int)tinfo->user.width, *bus_width);
                else
-                       *bus_width = MIN(tinfo->goal.width, *bus_width);
+                       *bus_width = min((u_int)tinfo->goal.width, *bus_width);
        }
 }
 
        physaddr = sg_map->sg_physaddr;
 
        newcount = (PAGE_SIZE / (AHC_NSEG * sizeof(struct ahc_dma_seg)));
-       newcount = MIN(newcount, (AHC_SCB_MAX_ALLOC - scb_data->numscbs));
+       newcount = min(newcount, (AHC_SCB_MAX_ALLOC - scb_data->numscbs));
        for (i = 0; i < newcount; i++) {
                struct scb_platform_data *pdata;
 #ifndef __linux__
                        if (skip_addr > i) {
                                int end_addr;
 
-                               end_addr = MIN(address, skip_addr);
+                               end_addr = min(address, skip_addr);
                                address_offset += end_addr - i;
                                i = skip_addr;
                        } else {
 
                if (scb->flags & SCB_SENSE) {
                        u_int sense_size;
 
-                       sense_size = MIN(sizeof(struct scsi_sense_data)
+                       sense_size = min(sizeof(struct scsi_sense_data)
                                       - ahc_get_sense_residual(scb),
-                                        sizeof(cmd->sense_buffer));
+                                        (u_long)sizeof(cmd->sense_buffer));
                        memcpy(cmd->sense_buffer,
                               ahc_get_sense_buf(ahc, scb), sense_size);
                        if (sense_size < sizeof(cmd->sense_buffer))