Problem compiling 2.5.2

Hi,

I have just downloaded 2.5.2 and was trying to compile it when I came
across some problems.
Please find below an extract of my session:
In file included from raid5.c:24:
/usr/src/linux/include/linux/raid/raid5.h:218: parse error before `md_wait_queue_head_t'
/usr/src/linux/include/linux/raid/raid5.h:218: warning: no semicolon at end of struct or union
/usr/src/linux/include/linux/raid/raid5.h:222: parse error before `device_lock'
/usr/src/linux/include/linux/raid/raid5.h:222: warning: type defaults to `int' in declaration of `device_lock'
/usr/src/linux/include/linux/raid/raid5.h:222: warning: data definition has no type or storage class
/usr/src/linux/include/linux/raid/raid5.h:226: parse error before `}'
raid5.c: In function `__release_stripe':
raid5.c:67: dereferencing pointer to incomplete type
raid5.c:71: dereferencing pointer to incomplete type
raid5.c:73: dereferencing pointer to incomplete type
raid5.c:74: dereferencing pointer to incomplete type
raid5.c:77: dereferencing pointer to incomplete type
raid5.c:78: dereferencing pointer to incomplete type
raid5.c:79: dereferencing pointer to incomplete type
raid5.c:81: dereferencing pointer to incomplete type
raid5.c:82: dereferencing pointer to incomplete type
raid5.c:83: dereferencing pointer to incomplete type
raid5.c:84: dereferencing pointer to incomplete type
raid5.c:85: dereferencing pointer to incomplete type
raid5.c: In function `release_stripe':
raid5.c:94: dereferencing pointer to incomplete type
raid5.c:96: dereferencing pointer to incomplete type
raid5.c: In function `insert_hash':
raid5.c:113: dereferencing pointer to incomplete type
raid5.c:113: dereferencing pointer to incomplete type
raid5.c:117: dereferencing pointer to incomplete type
raid5.c: In function `get_free_stripe':
raid5.c:131: dereferencing pointer to incomplete type
raid5.c:132: dereferencing pointer to incomplete type
raid5.c:134: dereferencing pointer to incomplete type
raid5.c:138: dereferencing pointer to incomplete type
raid5.c:129: warning: `first' might be used uninitialized in this function
raid5.c: In function `init_stripe':
raid5.c:189: dereferencing pointer to incomplete type
raid5.c:196: dereferencing pointer to incomplete type
raid5.c:202: dereferencing pointer to incomplete type
raid5.c: In function `shrink_stripe_cache':
raid5.c:226: dereferencing pointer to incomplete type
raid5.c:227: dereferencing pointer to incomplete type
raid5.c:231: dereferencing pointer to incomplete type
raid5.c: In function `__find_stripe':
raid5.c:240: dereferencing pointer to incomplete type
raid5.c:242: dereferencing pointer to incomplete type
raid5.c:242: dereferencing pointer to incomplete type
raid5.c:238: warning: `sh' might be used uninitialized in this function
raid5.c: In function `get_active_stripe':
raid5.c:255: warning: implicit declaration of function `md_spin_lock_irq'
raid5.c:255: dereferencing pointer to incomplete type
raid5.c:258: dereferencing pointer to incomplete type
raid5.c:259: dereferencing pointer to incomplete type
raid5.c:268: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:273: dereferencing pointer to incomplete type
raid5.c:275: dereferencing pointer to incomplete type
raid5.c:275: dereferencing pointer to incomplete type
raid5.c:276: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:279: dereferencing pointer to incomplete type
raid5.c:284: dereferencing pointer to incomplete type
raid5.c:288: dereferencing pointer to incomplete type
raid5.c:294: dereferencing pointer to incomplete type
raid5.c:298: dereferencing pointer to incomplete type
raid5.c:303: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:308: dereferencing pointer to incomplete type
raid5.c:309: dereferencing pointer to incomplete type
raid5.c:318: dereferencing pointer to incomplete type
raid5.c:329: warning: implicit declaration of function `md_spin_unlock_irq'
raid5.c:329: dereferencing pointer to incomplete type
raid5.c: In function `grow_stripes':
raid5.c:345: dereferencing pointer to incomplete type
raid5.c:346: dereferencing pointer to incomplete type
raid5.c:352: dereferencing pointer to incomplete type
raid5.c: In function `shrink_stripes':
raid5.c:364: dereferencing pointer to incomplete type
raid5.c:366: dereferencing pointer to incomplete type
raid5.c:371: dereferencing pointer to incomplete type
raid5.c:373: dereferencing pointer to incomplete type
raid5.c: In function `raid5_end_read_request':
raid5.c:382: dereferencing pointer to incomplete type
raid5.c:397: dereferencing pointer to incomplete type
raid5.c:408: structure has no member named `b_reqnext'
raid5.c:409: structure has no member named `b_reqnext'
raid5.c:412: dereferencing pointer to incomplete type
raid5.c:421: dereferencing pointer to incomplete type
raid5.c: In function `raid5_end_write_request':
raid5.c:440: dereferencing pointer to incomplete type
raid5.c:453: warning: implicit declaration of function `md_spin_lock_irqsave'
raid5.c:453: dereferencing pointer to incomplete type
raid5.c:455: dereferencing pointer to incomplete type
raid5.c:459: warning: implicit declaration of function `md_spin_unlock_irqrestore'
raid5.c:459: dereferencing pointer to incomplete type
raid5.c: In function `raid5_build_block':
raid5.c:471: dereferencing pointer to incomplete type
raid5.c: In function `raid5_error':
raid5.c:490: dereferencing pointer to incomplete type
raid5.c:490: warning: value computed is not used
raid5.c:490: dereferencing pointer to incomplete type
raid5.c:501: dereferencing pointer to incomplete type
raid5.c:502: dereferencing pointer to incomplete type
raid5.c:503: dereferencing pointer to incomplete type
raid5.c:507: dereferencing pointer to incomplete type
raid5.c:515: dereferencing pointer to incomplete type
raid5.c:516: dereferencing pointer to incomplete type
raid5.c:521: dereferencing pointer to incomplete type
raid5.c:527: dereferencing pointer to incomplete type
raid5.c:536: dereferencing pointer to incomplete type
raid5.c:485: warning: `disk' might be used uninitialized in this function
raid5.c: In function `raid5_compute_sector':
raid5.c:557: dereferencing pointer to incomplete type
raid5.c:580: dereferencing pointer to incomplete type
raid5.c:582: dereferencing pointer to incomplete type
raid5.c:583: case label not within a switch statement
raid5.c:587: break statement not within loop or switch
raid5.c:588: case label not within a switch statement
raid5.c:592: break statement not within loop or switch
raid5.c:593: case label not within a switch statement
raid5.c:596: break statement not within loop or switch
raid5.c:597: case label not within a switch statement
raid5.c:600: break statement not within loop or switch
raid5.c:601: default label not within a switch statement
raid5.c:602: dereferencing pointer to incomplete type
raid5.c: In function `compute_block':
raid5.c:664: dereferencing pointer to incomplete type
raid5.c: In function `compute_parity':
raid5.c:692: dereferencing pointer to incomplete type
raid5.c:712: structure has no member named `b_reqnext'
raid5.c:713: structure has no member named `b_reqnext'
raid5.c:724: structure has no member named `b_reqnext'
raid5.c:725: structure has no member named `b_reqnext'
raid5.c: In function `add_stripe_bh':
raid5.c:784: dereferencing pointer to incomplete type
raid5.c:785: structure has no member named `b_reqnext'
raid5.c:792: structure has no member named `b_reqnext'
raid5.c:795: dereferencing pointer to incomplete type
raid5.c: In function `handle_stripe':
raid5.c:826: dereferencing pointer to incomplete type
raid5.c:852: dereferencing pointer to incomplete type
raid5.c:855: dereferencing pointer to incomplete type
raid5.c:861: structure has no member named `b_reqnext'
raid5.c:862: structure has no member named `b_reqnext'
raid5.c:876: dereferencing pointer to incomplete type
raid5.c:891: structure has no member named `b_reqnext'
raid5.c:892: structure has no member named `b_reqnext'
raid5.c:896: dereferencing pointer to incomplete type
raid5.c:897: dereferencing pointer to incomplete type
raid5.c:900: structure has no member named `b_reqnext'
raid5.c:901: structure has no member named `b_reqnext'
raid5.c:904: dereferencing pointer to incomplete type
raid5.c:909: dereferencing pointer to incomplete type
raid5.c:919: dereferencing pointer to incomplete type
raid5.c:926: dereferencing pointer to incomplete type
raid5.c:934: structure has no member named `b_reqnext'
raid5.c:935: structure has no member named `b_reqnext'
raid5.c:958: dereferencing pointer to incomplete type
raid5.c:964: structure has no member named `b_reqnext'
raid5.c:973: dereferencing pointer to incomplete type
raid5.c:989: dereferencing pointer to incomplete type
raid5.c:999: dereferencing pointer to incomplete type
raid5.c:1011: dereferencing pointer to incomplete type
raid5.c:1030: dereferencing pointer to incomplete type
raid5.c:1053: dereferencing pointer to incomplete type
raid5.c:1058: dereferencing pointer to incomplete type
raid5.c:1059: dereferencing pointer to incomplete type
raid5.c:1060: dereferencing pointer to incomplete type
raid5.c:1102: dereferencing pointer to incomplete type
raid5.c:1103: dereferencing pointer to incomplete type
raid5.c:1104: dereferencing pointer to incomplete type
raid5.c:1110: dereferencing pointer to incomplete type
raid5.c:1118: structure has no member named `b_reqnext'
raid5.c:1119: structure has no member named `b_reqnext'
raid5.c:1123: structure has no member named `b_reqnext'
raid5.c:1124: structure has no member named `b_reqnext'
raid5.c:1130: dereferencing pointer to incomplete type
raid5.c:1136: dereferencing pointer to incomplete type
raid5.c:1137: dereferencing pointer to incomplete type
raid5.c:1145: structure has no member named `b_rdev'
raid5.c:1146: structure has no member named `b_rsector'
raid5.c:1147: warning: passing arg 1 of `generic_make_request' makes pointer from integer without a cast
raid5.c:1147: too many arguments to function `generic_make_request'
raid5.c: In function `raid5_activate_delayed':
raid5.c:1158: dereferencing pointer to incomplete type
raid5.c:1159: dereferencing pointer to incomplete type
raid5.c:1160: dereferencing pointer to incomplete type
raid5.c:1166: dereferencing pointer to incomplete type
raid5.c:1167: dereferencing pointer to incomplete type
raid5.c: In function `raid5_unplug_device':
raid5.c:1176: dereferencing pointer to incomplete type
raid5.c:1180: dereferencing pointer to incomplete type
raid5.c:1181: dereferencing pointer to incomplete type
raid5.c:1183: dereferencing pointer to incomplete type
raid5.c: In function `raid5_plug_device':
raid5.c:1188: dereferencing pointer to incomplete type
raid5.c:1189: dereferencing pointer to incomplete type
raid5.c:1190: dereferencing pointer to incomplete type
raid5.c:1191: dereferencing pointer to incomplete type
raid5.c:1192: dereferencing pointer to incomplete type
raid5.c:1194: dereferencing pointer to incomplete type
raid5.c: In function `raid5_make_request':
raid5.c:1200: dereferencing pointer to incomplete type
raid5.c:1213: structure has no member named `b_rsector'
raid5.c: In function `raid5_sync_request':
raid5.c:1235: dereferencing pointer to incomplete type
raid5.c:1240: dereferencing pointer to incomplete type
raid5.c: In function `raid5d':
raid5.c:1274: dereferencing pointer to incomplete type
raid5.c:1285: dereferencing pointer to incomplete type
raid5.c:1289: dereferencing pointer to incomplete type
raid5.c:1290: dereferencing pointer to incomplete type
raid5.c:1291: dereferencing pointer to incomplete type
raid5.c:1292: dereferencing pointer to incomplete type
raid5.c:1295: dereferencing pointer to incomplete type
raid5.c:1298: dereferencing pointer to incomplete type
raid5.c:1305: dereferencing pointer to incomplete type
raid5.c:1311: dereferencing pointer to incomplete type
raid5.c:1315: dereferencing pointer to incomplete type
raid5.c:1287: warning: `first' might be used uninitialized in this function
raid5.c: In function `raid5syncd':
raid5.c:1328: dereferencing pointer to incomplete type
raid5.c:1330: dereferencing pointer to incomplete type
raid5.c:1332: dereferencing pointer to incomplete type
raid5.c:1340: dereferencing pointer to incomplete type
raid5.c: In function `raid5_run':
raid5.c:1364: sizeof applied to an incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1367: dereferencing pointer to incomplete type
raid5.c:1368: dereferencing pointer to incomplete type
raid5.c:1370: dereferencing pointer to incomplete type
raid5.c:1370: warning: implicit declaration of function `md__get_free_pages'
raid5.c:1372: dereferencing pointer to incomplete type
raid5.c:1372: dereferencing pointer to incomplete type
raid5.c:1372: dereferencing pointer to incomplete type
raid5.c:1372: dereferencing pointer to incomplete type
raid5.c:1374: dereferencing pointer to incomplete type
raid5.c:1374: `MD_SPIN_LOCK_UNLOCKED' undeclared (first use in this function)
raid5.c:1374: (Each undeclared identifier is reported only once
raid5.c:1374: for each function it appears in.)
raid5.c:1375: warning: implicit declaration of function `md_init_waitqueue_head'
raid5.c:1375: dereferencing pointer to incomplete type
raid5.c:1376: dereferencing pointer to incomplete type
raid5.c:1376: dereferencing pointer to incomplete type
raid5.c:1376: dereferencing pointer to incomplete type
raid5.c:1376: dereferencing pointer to incomplete type
raid5.c:1377: dereferencing pointer to incomplete type
raid5.c:1377: dereferencing pointer to incomplete type
raid5.c:1377: dereferencing pointer to incomplete type
raid5.c:1377: dereferencing pointer to incomplete type
raid5.c:1378: dereferencing pointer to incomplete type
raid5.c:1378: dereferencing pointer to incomplete type
raid5.c:1378: dereferencing pointer to incomplete type
raid5.c:1378: dereferencing pointer to incomplete type
raid5.c:1379: dereferencing pointer to incomplete type
raid5.c:1380: dereferencing pointer to incomplete type
raid5.c:1381: dereferencing pointer to incomplete type
raid5.c:1383: dereferencing pointer to incomplete type
raid5.c:1384: dereferencing pointer to incomplete type
raid5.c:1385: dereferencing pointer to incomplete type
raid5.c:1386: dereferencing pointer to incomplete type
raid5.c:1390: warning: assignment from incompatible pointer type
raid5.c:1390: dereferencing pointer to incomplete type
raid5.c:1390: dereferencing pointer to incomplete type
raid5.c:1390: warning: left-hand operand of comma expression has no effect
raid5.c:1398: dereferencing pointer to incomplete type
raid5.c:1438: dereferencing pointer to incomplete type
raid5.c:1458: dereferencing pointer to incomplete type
raid5.c:1461: dereferencing pointer to incomplete type
raid5.c:1474: dereferencing pointer to incomplete type
raid5.c:1478: dereferencing pointer to incomplete type
raid5.c:1478: dereferencing pointer to incomplete type
raid5.c:1478: dereferencing pointer to incomplete type
raid5.c:1479: dereferencing pointer to incomplete type
raid5.c:1480: dereferencing pointer to incomplete type
raid5.c:1481: dereferencing pointer to incomplete type
raid5.c:1482: dereferencing pointer to incomplete type
raid5.c:1483: dereferencing pointer to incomplete type
raid5.c:1493: dereferencing pointer to incomplete type
raid5.c:1493: dereferencing pointer to incomplete type
raid5.c:1494: dereferencing pointer to incomplete type
raid5.c:1497: dereferencing pointer to incomplete type
raid5.c:1498: dereferencing pointer to incomplete type
raid5.c:1501: dereferencing pointer to incomplete type
raid5.c:1502: dereferencing pointer to incomplete type
raid5.c:1502: dereferencing pointer to incomplete type
raid5.c:1506: dereferencing pointer to incomplete type
raid5.c:1514: dereferencing pointer to incomplete type
raid5.c:1515: dereferencing pointer to incomplete type
raid5.c:1521: dereferencing pointer to incomplete type
raid5.c:1522: dereferencing pointer to incomplete type
raid5.c:1523: dereferencing pointer to incomplete type
raid5.c:1525: dereferencing pointer to incomplete type
raid5.c:1537: dereferencing pointer to incomplete type
raid5.c:1539: dereferencing pointer to incomplete type
raid5.c:1543: dereferencing pointer to incomplete type
raid5.c:1546: dereferencing pointer to incomplete type
raid5.c:1546: dereferencing pointer to incomplete type
raid5.c:1548: dereferencing pointer to incomplete type
raid5.c:1548: dereferencing pointer to incomplete type
raid5.c:1553: dereferencing pointer to incomplete type
raid5.c:1554: dereferencing pointer to incomplete type
raid5.c:1560: dereferencing pointer to incomplete type
raid5.c:1561: dereferencing pointer to incomplete type
raid5.c:1574: dereferencing pointer to incomplete type
raid5.c:1575: dereferencing pointer to incomplete type
raid5.c: In function `raid5_stop_resync':
raid5.c:1588: dereferencing pointer to incomplete type
raid5.c:1591: dereferencing pointer to incomplete type
raid5.c:1592: dereferencing pointer to incomplete type
raid5.c: In function `raid5_restart_resync':
raid5.c:1606: dereferencing pointer to incomplete type
raid5.c:1607: dereferencing pointer to incomplete type
raid5.c:1612: dereferencing pointer to incomplete type
raid5.c:1613: dereferencing pointer to incomplete type
raid5.c: In function `raid5_stop':
raid5.c:1625: dereferencing pointer to incomplete type
raid5.c:1626: dereferencing pointer to incomplete type
raid5.c:1627: dereferencing pointer to incomplete type
raid5.c:1628: dereferencing pointer to incomplete type
raid5.c:1629: dereferencing pointer to incomplete type
raid5.c: In function `raid5_status':
raid5.c:1678: dereferencing pointer to incomplete type
raid5.c:1678: dereferencing pointer to incomplete type
raid5.c:1679: dereferencing pointer to incomplete type
raid5.c:1680: dereferencing pointer to incomplete type
raid5.c: In function `print_raid5_conf':
raid5.c:1700: dereferencing pointer to incomplete type
raid5.c:1701: dereferencing pointer to incomplete type
raid5.c:1701: dereferencing pointer to incomplete type
raid5.c:1706: dereferencing pointer to incomplete type
raid5.c:1706: dereferencing pointer to incomplete type
raid5.c:1708: dereferencing pointer to incomplete type
raid5.c: In function `raid5_diskop':
raid5.c:1727: dereferencing pointer to incomplete type
raid5.c:1739: dereferencing pointer to incomplete type
raid5.c:1740: dereferencing pointer to incomplete type
raid5.c:1751: dereferencing pointer to incomplete type
raid5.c:1765: dereferencing pointer to incomplete type
raid5.c:1766: dereferencing pointer to incomplete type
raid5.c:1782: dereferencing pointer to incomplete type
raid5.c:1801: dereferencing pointer to incomplete type
raid5.c:1802: dereferencing pointer to incomplete type
raid5.c:1821: dereferencing pointer to incomplete type
raid5.c:1826: dereferencing pointer to incomplete type
raid5.c:1829: dereferencing pointer to incomplete type
raid5.c:1835: dereferencing pointer to incomplete type
raid5.c:1841: dereferencing pointer to incomplete type
raid5.c:1842: dereferencing pointer to incomplete type
raid5.c:1852: dereferencing pointer to incomplete type
raid5.c:1857: dereferencing pointer to incomplete type
raid5.c:1858: dereferencing pointer to incomplete type
raid5.c:1938: dereferencing pointer to incomplete type
raid5.c:1939: dereferencing pointer to incomplete type
raid5.c:1940: dereferencing pointer to incomplete type
raid5.c:1945: dereferencing pointer to incomplete type
raid5.c:1947: dereferencing pointer to incomplete type
raid5.c:1958: dereferencing pointer to incomplete type
raid5.c:1985: dereferencing pointer to incomplete type
raid5.c:1719: warning: `i' might be used uninitialized in this function
raid5.c:1721: warning: `tmp' might be used uninitialized in this function
raid5.c:1721: warning: `sdisk' might be used uninitialized in this function
raid5.c:1721: warning: `adisk' might be used uninitialized in this function
raid5.c: At top level:
raid5.c:1993: warning: initialization from incompatible pointer type
raid5.c:2002: warning: initialization from incompatible pointer type
raid5.c:2004: parse error before `raid5_init'
raid5.c:2005: warning: return type defaults to `int'

I had a first look and it seems that quite a few words have been prefixed with md (like md__init, or md_spinlock_t).
I had a look at the raid0.c and raid1.c files and they don't use those md prefixed words.
It also seems that some errors have to do with the struct buffer_head missing some members.

Any ideas anybody?

Cheers.
Bertrand.

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