Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Simple MTD partitioning layer | |
3 | * | |
4 | * (C) 2000 Nicolas Pitre <nico@cam.org> | |
5 | * | |
6 | * This code is GPL | |
7 | * | |
97894cda | 8 | * $Id: mtdpart.c,v 1.55 2005/11/07 11:14:20 gleixner Exp $ |
1da177e4 LT |
9 | * |
10 | * 02-21-2002 Thomas Gleixner <gleixner@autronix.de> | |
11 | * added support for read_oob, write_oob | |
97894cda | 12 | */ |
1da177e4 LT |
13 | |
14 | #include <linux/module.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/kernel.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/list.h> | |
1da177e4 LT |
19 | #include <linux/kmod.h> |
20 | #include <linux/mtd/mtd.h> | |
21 | #include <linux/mtd/partitions.h> | |
22 | #include <linux/mtd/compatmac.h> | |
23 | ||
24 | /* Our partition linked list */ | |
25 | static LIST_HEAD(mtd_partitions); | |
26 | ||
27 | /* Our partition node structure */ | |
28 | struct mtd_part { | |
29 | struct mtd_info mtd; | |
30 | struct mtd_info *master; | |
31 | u_int32_t offset; | |
32 | int index; | |
33 | struct list_head list; | |
34 | int registered; | |
35 | }; | |
36 | ||
37 | /* | |
38 | * Given a pointer to the MTD object in the mtd_part structure, we can retrieve | |
39 | * the pointer to that structure with this macro. | |
40 | */ | |
41 | #define PART(x) ((struct mtd_part *)(x)) | |
42 | ||
97894cda TG |
43 | |
44 | /* | |
1da177e4 LT |
45 | * MTD methods which simply translate the effective address and pass through |
46 | * to the _real_ device. | |
47 | */ | |
48 | ||
97894cda | 49 | static int part_read (struct mtd_info *mtd, loff_t from, size_t len, |
1da177e4 LT |
50 | size_t *retlen, u_char *buf) |
51 | { | |
52 | struct mtd_part *part = PART(mtd); | |
f1a28c02 TG |
53 | int res; |
54 | ||
1da177e4 LT |
55 | if (from >= mtd->size) |
56 | len = 0; | |
57 | else if (from + len > mtd->size) | |
58 | len = mtd->size - from; | |
f1a28c02 | 59 | res = part->master->read (part->master, from + part->offset, |
9223a456 | 60 | len, retlen, buf); |
f1a28c02 TG |
61 | if (unlikely(res)) { |
62 | if (res == -EUCLEAN) | |
63 | mtd->ecc_stats.corrected++; | |
64 | if (res == -EBADMSG) | |
65 | mtd->ecc_stats.failed++; | |
66 | } | |
67 | return res; | |
1da177e4 LT |
68 | } |
69 | ||
97894cda | 70 | static int part_point (struct mtd_info *mtd, loff_t from, size_t len, |
1da177e4 LT |
71 | size_t *retlen, u_char **buf) |
72 | { | |
73 | struct mtd_part *part = PART(mtd); | |
74 | if (from >= mtd->size) | |
75 | len = 0; | |
76 | else if (from + len > mtd->size) | |
77 | len = mtd->size - from; | |
97894cda | 78 | return part->master->point (part->master, from + part->offset, |
1da177e4 LT |
79 | len, retlen, buf); |
80 | } | |
9223a456 | 81 | |
1da177e4 LT |
82 | static void part_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len) |
83 | { | |
84 | struct mtd_part *part = PART(mtd); | |
85 | ||
86 | part->master->unpoint (part->master, addr, from + part->offset, len); | |
87 | } | |
88 | ||
8593fbc6 TG |
89 | static int part_read_oob(struct mtd_info *mtd, loff_t from, |
90 | struct mtd_oob_ops *ops) | |
1da177e4 LT |
91 | { |
92 | struct mtd_part *part = PART(mtd); | |
f1a28c02 | 93 | int res; |
8593fbc6 | 94 | |
1da177e4 | 95 | if (from >= mtd->size) |
8593fbc6 | 96 | return -EINVAL; |
7014568b | 97 | if (ops->datbuf && from + ops->len > mtd->size) |
8593fbc6 | 98 | return -EINVAL; |
f1a28c02 TG |
99 | res = part->master->read_oob(part->master, from + part->offset, ops); |
100 | ||
101 | if (unlikely(res)) { | |
102 | if (res == -EUCLEAN) | |
103 | mtd->ecc_stats.corrected++; | |
104 | if (res == -EBADMSG) | |
105 | mtd->ecc_stats.failed++; | |
106 | } | |
107 | return res; | |
1da177e4 LT |
108 | } |
109 | ||
97894cda | 110 | static int part_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, |
1da177e4 LT |
111 | size_t *retlen, u_char *buf) |
112 | { | |
113 | struct mtd_part *part = PART(mtd); | |
97894cda | 114 | return part->master->read_user_prot_reg (part->master, from, |
1da177e4 LT |
115 | len, retlen, buf); |
116 | } | |
117 | ||
f77814dd NP |
118 | static int part_get_user_prot_info (struct mtd_info *mtd, |
119 | struct otp_info *buf, size_t len) | |
120 | { | |
121 | struct mtd_part *part = PART(mtd); | |
122 | return part->master->get_user_prot_info (part->master, buf, len); | |
123 | } | |
124 | ||
97894cda | 125 | static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, |
1da177e4 LT |
126 | size_t *retlen, u_char *buf) |
127 | { | |
128 | struct mtd_part *part = PART(mtd); | |
97894cda | 129 | return part->master->read_fact_prot_reg (part->master, from, |
1da177e4 LT |
130 | len, retlen, buf); |
131 | } | |
132 | ||
f77814dd NP |
133 | static int part_get_fact_prot_info (struct mtd_info *mtd, |
134 | struct otp_info *buf, size_t len) | |
135 | { | |
136 | struct mtd_part *part = PART(mtd); | |
137 | return part->master->get_fact_prot_info (part->master, buf, len); | |
138 | } | |
139 | ||
1da177e4 LT |
140 | static int part_write (struct mtd_info *mtd, loff_t to, size_t len, |
141 | size_t *retlen, const u_char *buf) | |
142 | { | |
143 | struct mtd_part *part = PART(mtd); | |
144 | if (!(mtd->flags & MTD_WRITEABLE)) | |
145 | return -EROFS; | |
146 | if (to >= mtd->size) | |
147 | len = 0; | |
148 | else if (to + len > mtd->size) | |
149 | len = mtd->size - to; | |
9223a456 TG |
150 | return part->master->write (part->master, to + part->offset, |
151 | len, retlen, buf); | |
1da177e4 LT |
152 | } |
153 | ||
8593fbc6 TG |
154 | static int part_write_oob(struct mtd_info *mtd, loff_t to, |
155 | struct mtd_oob_ops *ops) | |
1da177e4 LT |
156 | { |
157 | struct mtd_part *part = PART(mtd); | |
8593fbc6 | 158 | |
1da177e4 LT |
159 | if (!(mtd->flags & MTD_WRITEABLE)) |
160 | return -EROFS; | |
8593fbc6 | 161 | |
1da177e4 | 162 | if (to >= mtd->size) |
8593fbc6 | 163 | return -EINVAL; |
7014568b | 164 | if (ops->datbuf && to + ops->len > mtd->size) |
8593fbc6 TG |
165 | return -EINVAL; |
166 | return part->master->write_oob(part->master, to + part->offset, ops); | |
1da177e4 LT |
167 | } |
168 | ||
97894cda | 169 | static int part_write_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, |
1da177e4 LT |
170 | size_t *retlen, u_char *buf) |
171 | { | |
172 | struct mtd_part *part = PART(mtd); | |
97894cda | 173 | return part->master->write_user_prot_reg (part->master, from, |
1da177e4 LT |
174 | len, retlen, buf); |
175 | } | |
176 | ||
97894cda | 177 | static int part_lock_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len) |
f77814dd NP |
178 | { |
179 | struct mtd_part *part = PART(mtd); | |
180 | return part->master->lock_user_prot_reg (part->master, from, len); | |
181 | } | |
182 | ||
1da177e4 LT |
183 | static int part_writev (struct mtd_info *mtd, const struct kvec *vecs, |
184 | unsigned long count, loff_t to, size_t *retlen) | |
185 | { | |
186 | struct mtd_part *part = PART(mtd); | |
187 | if (!(mtd->flags & MTD_WRITEABLE)) | |
188 | return -EROFS; | |
9d8522df | 189 | return part->master->writev (part->master, vecs, count, |
1da177e4 | 190 | to + part->offset, retlen); |
1da177e4 LT |
191 | } |
192 | ||
1da177e4 LT |
193 | static int part_erase (struct mtd_info *mtd, struct erase_info *instr) |
194 | { | |
195 | struct mtd_part *part = PART(mtd); | |
196 | int ret; | |
197 | if (!(mtd->flags & MTD_WRITEABLE)) | |
198 | return -EROFS; | |
199 | if (instr->addr >= mtd->size) | |
200 | return -EINVAL; | |
201 | instr->addr += part->offset; | |
202 | ret = part->master->erase(part->master, instr); | |
74641d75 AH |
203 | if (ret) { |
204 | if (instr->fail_addr != 0xffffffff) | |
205 | instr->fail_addr -= part->offset; | |
206 | instr->addr -= part->offset; | |
207 | } | |
1da177e4 LT |
208 | return ret; |
209 | } | |
210 | ||
211 | void mtd_erase_callback(struct erase_info *instr) | |
212 | { | |
213 | if (instr->mtd->erase == part_erase) { | |
214 | struct mtd_part *part = PART(instr->mtd); | |
215 | ||
216 | if (instr->fail_addr != 0xffffffff) | |
217 | instr->fail_addr -= part->offset; | |
218 | instr->addr -= part->offset; | |
219 | } | |
220 | if (instr->callback) | |
221 | instr->callback(instr); | |
222 | } | |
223 | EXPORT_SYMBOL_GPL(mtd_erase_callback); | |
224 | ||
225 | static int part_lock (struct mtd_info *mtd, loff_t ofs, size_t len) | |
226 | { | |
227 | struct mtd_part *part = PART(mtd); | |
97894cda | 228 | if ((len + ofs) > mtd->size) |
1da177e4 LT |
229 | return -EINVAL; |
230 | return part->master->lock(part->master, ofs + part->offset, len); | |
231 | } | |
232 | ||
233 | static int part_unlock (struct mtd_info *mtd, loff_t ofs, size_t len) | |
234 | { | |
235 | struct mtd_part *part = PART(mtd); | |
97894cda | 236 | if ((len + ofs) > mtd->size) |
1da177e4 LT |
237 | return -EINVAL; |
238 | return part->master->unlock(part->master, ofs + part->offset, len); | |
239 | } | |
240 | ||
241 | static void part_sync(struct mtd_info *mtd) | |
242 | { | |
243 | struct mtd_part *part = PART(mtd); | |
244 | part->master->sync(part->master); | |
245 | } | |
246 | ||
247 | static int part_suspend(struct mtd_info *mtd) | |
248 | { | |
249 | struct mtd_part *part = PART(mtd); | |
250 | return part->master->suspend(part->master); | |
251 | } | |
252 | ||
253 | static void part_resume(struct mtd_info *mtd) | |
254 | { | |
255 | struct mtd_part *part = PART(mtd); | |
256 | part->master->resume(part->master); | |
257 | } | |
258 | ||
259 | static int part_block_isbad (struct mtd_info *mtd, loff_t ofs) | |
260 | { | |
261 | struct mtd_part *part = PART(mtd); | |
262 | if (ofs >= mtd->size) | |
263 | return -EINVAL; | |
264 | ofs += part->offset; | |
265 | return part->master->block_isbad(part->master, ofs); | |
266 | } | |
267 | ||
268 | static int part_block_markbad (struct mtd_info *mtd, loff_t ofs) | |
269 | { | |
270 | struct mtd_part *part = PART(mtd); | |
f1a28c02 TG |
271 | int res; |
272 | ||
1da177e4 LT |
273 | if (!(mtd->flags & MTD_WRITEABLE)) |
274 | return -EROFS; | |
275 | if (ofs >= mtd->size) | |
276 | return -EINVAL; | |
277 | ofs += part->offset; | |
f1a28c02 TG |
278 | res = part->master->block_markbad(part->master, ofs); |
279 | if (!res) | |
280 | mtd->ecc_stats.badblocks++; | |
281 | return res; | |
1da177e4 LT |
282 | } |
283 | ||
97894cda TG |
284 | /* |
285 | * This function unregisters and destroy all slave MTD objects which are | |
1da177e4 LT |
286 | * attached to the given master MTD object. |
287 | */ | |
288 | ||
289 | int del_mtd_partitions(struct mtd_info *master) | |
290 | { | |
291 | struct list_head *node; | |
292 | struct mtd_part *slave; | |
293 | ||
294 | for (node = mtd_partitions.next; | |
295 | node != &mtd_partitions; | |
296 | node = node->next) { | |
297 | slave = list_entry(node, struct mtd_part, list); | |
298 | if (slave->master == master) { | |
299 | struct list_head *prev = node->prev; | |
300 | __list_del(prev, node->next); | |
301 | if(slave->registered) | |
302 | del_mtd_device(&slave->mtd); | |
303 | kfree(slave); | |
304 | node = prev; | |
305 | } | |
306 | } | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | /* | |
312 | * This function, given a master MTD object and a partition table, creates | |
313 | * and registers slave MTD objects which are bound to the master according to | |
314 | * the partition definitions. | |
315 | * (Q: should we register the master MTD object as well?) | |
316 | */ | |
317 | ||
97894cda | 318 | int add_mtd_partitions(struct mtd_info *master, |
1da177e4 LT |
319 | const struct mtd_partition *parts, |
320 | int nbparts) | |
321 | { | |
322 | struct mtd_part *slave; | |
323 | u_int32_t cur_offset = 0; | |
324 | int i; | |
325 | ||
326 | printk (KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); | |
327 | ||
328 | for (i = 0; i < nbparts; i++) { | |
329 | ||
330 | /* allocate the partition structure */ | |
95b93a0c | 331 | slave = kzalloc (sizeof(*slave), GFP_KERNEL); |
1da177e4 LT |
332 | if (!slave) { |
333 | printk ("memory allocation error while creating partitions for \"%s\"\n", | |
334 | master->name); | |
335 | del_mtd_partitions(master); | |
336 | return -ENOMEM; | |
337 | } | |
1da177e4 LT |
338 | list_add(&slave->list, &mtd_partitions); |
339 | ||
340 | /* set up the MTD object for this partition */ | |
341 | slave->mtd.type = master->type; | |
342 | slave->mtd.flags = master->flags & ~parts[i].mask_flags; | |
343 | slave->mtd.size = parts[i].size; | |
28318776 | 344 | slave->mtd.writesize = master->writesize; |
1da177e4 | 345 | slave->mtd.oobsize = master->oobsize; |
1f92267c | 346 | slave->mtd.oobavail = master->oobavail; |
29072b96 | 347 | slave->mtd.subpage_sft = master->subpage_sft; |
1da177e4 LT |
348 | |
349 | slave->mtd.name = parts[i].name; | |
1da177e4 LT |
350 | slave->mtd.owner = master->owner; |
351 | ||
352 | slave->mtd.read = part_read; | |
353 | slave->mtd.write = part_write; | |
354 | ||
355 | if(master->point && master->unpoint){ | |
356 | slave->mtd.point = part_point; | |
357 | slave->mtd.unpoint = part_unpoint; | |
358 | } | |
97894cda | 359 | |
1da177e4 LT |
360 | if (master->read_oob) |
361 | slave->mtd.read_oob = part_read_oob; | |
362 | if (master->write_oob) | |
363 | slave->mtd.write_oob = part_write_oob; | |
364 | if(master->read_user_prot_reg) | |
365 | slave->mtd.read_user_prot_reg = part_read_user_prot_reg; | |
366 | if(master->read_fact_prot_reg) | |
367 | slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg; | |
368 | if(master->write_user_prot_reg) | |
369 | slave->mtd.write_user_prot_reg = part_write_user_prot_reg; | |
f77814dd NP |
370 | if(master->lock_user_prot_reg) |
371 | slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg; | |
372 | if(master->get_user_prot_info) | |
373 | slave->mtd.get_user_prot_info = part_get_user_prot_info; | |
374 | if(master->get_fact_prot_info) | |
375 | slave->mtd.get_fact_prot_info = part_get_fact_prot_info; | |
1da177e4 LT |
376 | if (master->sync) |
377 | slave->mtd.sync = part_sync; | |
378 | if (!i && master->suspend && master->resume) { | |
379 | slave->mtd.suspend = part_suspend; | |
380 | slave->mtd.resume = part_resume; | |
381 | } | |
382 | if (master->writev) | |
383 | slave->mtd.writev = part_writev; | |
1da177e4 LT |
384 | if (master->lock) |
385 | slave->mtd.lock = part_lock; | |
386 | if (master->unlock) | |
387 | slave->mtd.unlock = part_unlock; | |
388 | if (master->block_isbad) | |
389 | slave->mtd.block_isbad = part_block_isbad; | |
390 | if (master->block_markbad) | |
391 | slave->mtd.block_markbad = part_block_markbad; | |
392 | slave->mtd.erase = part_erase; | |
393 | slave->master = master; | |
394 | slave->offset = parts[i].offset; | |
395 | slave->index = i; | |
396 | ||
397 | if (slave->offset == MTDPART_OFS_APPEND) | |
398 | slave->offset = cur_offset; | |
399 | if (slave->offset == MTDPART_OFS_NXTBLK) { | |
5cea5dad AB |
400 | slave->offset = cur_offset; |
401 | if ((cur_offset % master->erasesize) != 0) { | |
402 | /* Round up to next erasesize */ | |
403 | slave->offset = ((cur_offset / master->erasesize) + 1) * master->erasesize; | |
1da177e4 LT |
404 | printk(KERN_NOTICE "Moving partition %d: " |
405 | "0x%08x -> 0x%08x\n", i, | |
406 | cur_offset, slave->offset); | |
407 | } | |
408 | } | |
409 | if (slave->mtd.size == MTDPART_SIZ_FULL) | |
410 | slave->mtd.size = master->size - slave->offset; | |
411 | cur_offset = slave->offset + slave->mtd.size; | |
97894cda TG |
412 | |
413 | printk (KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset, | |
1da177e4 LT |
414 | slave->offset + slave->mtd.size, slave->mtd.name); |
415 | ||
416 | /* let's do some sanity checks */ | |
417 | if (slave->offset >= master->size) { | |
418 | /* let's register it anyway to preserve ordering */ | |
419 | slave->offset = 0; | |
420 | slave->mtd.size = 0; | |
421 | printk ("mtd: partition \"%s\" is out of reach -- disabled\n", | |
422 | parts[i].name); | |
423 | } | |
424 | if (slave->offset + slave->mtd.size > master->size) { | |
425 | slave->mtd.size = master->size - slave->offset; | |
426 | printk ("mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#x\n", | |
427 | parts[i].name, master->name, slave->mtd.size); | |
428 | } | |
429 | if (master->numeraseregions>1) { | |
430 | /* Deal with variable erase size stuff */ | |
431 | int i; | |
432 | struct mtd_erase_region_info *regions = master->eraseregions; | |
97894cda | 433 | |
1da177e4 LT |
434 | /* Find the first erase regions which is part of this partition. */ |
435 | for (i=0; i < master->numeraseregions && slave->offset >= regions[i].offset; i++) | |
436 | ; | |
437 | ||
438 | for (i--; i < master->numeraseregions && slave->offset + slave->mtd.size > regions[i].offset; i++) { | |
439 | if (slave->mtd.erasesize < regions[i].erasesize) { | |
440 | slave->mtd.erasesize = regions[i].erasesize; | |
441 | } | |
442 | } | |
443 | } else { | |
444 | /* Single erase size */ | |
445 | slave->mtd.erasesize = master->erasesize; | |
446 | } | |
447 | ||
97894cda | 448 | if ((slave->mtd.flags & MTD_WRITEABLE) && |
1da177e4 LT |
449 | (slave->offset % slave->mtd.erasesize)) { |
450 | /* Doesn't start on a boundary of major erase size */ | |
451 | /* FIXME: Let it be writable if it is on a boundary of _minor_ erase size though */ | |
452 | slave->mtd.flags &= ~MTD_WRITEABLE; | |
453 | printk ("mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n", | |
454 | parts[i].name); | |
455 | } | |
97894cda | 456 | if ((slave->mtd.flags & MTD_WRITEABLE) && |
1da177e4 LT |
457 | (slave->mtd.size % slave->mtd.erasesize)) { |
458 | slave->mtd.flags &= ~MTD_WRITEABLE; | |
459 | printk ("mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", | |
460 | parts[i].name); | |
461 | } | |
462 | ||
5bd34c09 | 463 | slave->mtd.ecclayout = master->ecclayout; |
f1a28c02 TG |
464 | if (master->block_isbad) { |
465 | uint32_t offs = 0; | |
466 | ||
467 | while(offs < slave->mtd.size) { | |
468 | if (master->block_isbad(master, | |
469 | offs + slave->offset)) | |
470 | slave->mtd.ecc_stats.badblocks++; | |
471 | offs += slave->mtd.erasesize; | |
472 | } | |
473 | } | |
1da177e4 LT |
474 | |
475 | if(parts[i].mtdp) | |
476 | { /* store the object pointer (caller may or may not register it */ | |
477 | *parts[i].mtdp = &slave->mtd; | |
478 | slave->registered = 0; | |
479 | } | |
480 | else | |
481 | { | |
482 | /* register our partition */ | |
483 | add_mtd_device(&slave->mtd); | |
484 | slave->registered = 1; | |
485 | } | |
486 | } | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | EXPORT_SYMBOL(add_mtd_partitions); | |
492 | EXPORT_SYMBOL(del_mtd_partitions); | |
493 | ||
494 | static DEFINE_SPINLOCK(part_parser_lock); | |
495 | static LIST_HEAD(part_parsers); | |
496 | ||
497 | static struct mtd_part_parser *get_partition_parser(const char *name) | |
498 | { | |
499 | struct list_head *this; | |
500 | void *ret = NULL; | |
501 | spin_lock(&part_parser_lock); | |
502 | ||
503 | list_for_each(this, &part_parsers) { | |
504 | struct mtd_part_parser *p = list_entry(this, struct mtd_part_parser, list); | |
505 | ||
506 | if (!strcmp(p->name, name) && try_module_get(p->owner)) { | |
507 | ret = p; | |
508 | break; | |
509 | } | |
510 | } | |
511 | spin_unlock(&part_parser_lock); | |
512 | ||
513 | return ret; | |
514 | } | |
515 | ||
516 | int register_mtd_parser(struct mtd_part_parser *p) | |
517 | { | |
518 | spin_lock(&part_parser_lock); | |
519 | list_add(&p->list, &part_parsers); | |
520 | spin_unlock(&part_parser_lock); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
525 | int deregister_mtd_parser(struct mtd_part_parser *p) | |
526 | { | |
527 | spin_lock(&part_parser_lock); | |
528 | list_del(&p->list); | |
529 | spin_unlock(&part_parser_lock); | |
530 | return 0; | |
531 | } | |
532 | ||
97894cda | 533 | int parse_mtd_partitions(struct mtd_info *master, const char **types, |
1da177e4 LT |
534 | struct mtd_partition **pparts, unsigned long origin) |
535 | { | |
536 | struct mtd_part_parser *parser; | |
537 | int ret = 0; | |
97894cda | 538 | |
1da177e4 LT |
539 | for ( ; ret <= 0 && *types; types++) { |
540 | parser = get_partition_parser(*types); | |
541 | #ifdef CONFIG_KMOD | |
542 | if (!parser && !request_module("%s", *types)) | |
543 | parser = get_partition_parser(*types); | |
544 | #endif | |
545 | if (!parser) { | |
546 | printk(KERN_NOTICE "%s partition parsing not available\n", | |
547 | *types); | |
548 | continue; | |
549 | } | |
550 | ret = (*parser->parse_fn)(master, pparts, origin); | |
551 | if (ret > 0) { | |
97894cda | 552 | printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", |
1da177e4 LT |
553 | ret, parser->name, master->name); |
554 | } | |
555 | put_partition_parser(parser); | |
556 | } | |
557 | return ret; | |
558 | } | |
559 | ||
560 | EXPORT_SYMBOL_GPL(parse_mtd_partitions); | |
561 | EXPORT_SYMBOL_GPL(register_mtd_parser); | |
562 | EXPORT_SYMBOL_GPL(deregister_mtd_parser); |