2 * c 2001 PPC 64 Team, IBM Corp
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * /proc/powerpc/rtas/firmware_flash interface
11 * This file implements a firmware_flash interface to pump a firmware
12 * image into the kernel. At reboot time rtas_restart() will see the
13 * firmware image and flash it as it reboots (see rtas.c).
16 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/slab.h>
19 #include <linux/proc_fs.h>
20 #include <linux/reboot.h>
21 #include <asm/delay.h>
22 #include <asm/uaccess.h>
25 #define MODULE_VERS "1.0"
26 #define MODULE_NAME "rtas_flash"
28 #define FIRMWARE_FLASH_NAME "firmware_flash"
29 #define FIRMWARE_UPDATE_NAME "firmware_update"
30 #define MANAGE_FLASH_NAME "manage_flash"
31 #define VALIDATE_FLASH_NAME "validate_flash"
33 /* General RTAS Status Codes */
34 #define RTAS_RC_SUCCESS 0
35 #define RTAS_RC_HW_ERR -1
36 #define RTAS_RC_BUSY -2
38 /* Flash image status values */
39 #define FLASH_AUTH -9002 /* RTAS Not Service Authority Partition */
40 #define FLASH_NO_OP -1099 /* No operation initiated by user */
41 #define FLASH_IMG_SHORT -1005 /* Flash image shorter than expected */
42 #define FLASH_IMG_BAD_LEN -1004 /* Bad length value in flash list block */
43 #define FLASH_IMG_NULL_DATA -1003 /* Bad data value in flash list block */
44 #define FLASH_IMG_READY 0 /* Firmware img ready for flash on reboot */
46 /* Manage image status values */
47 #define MANAGE_AUTH -9002 /* RTAS Not Service Authority Partition */
48 #define MANAGE_ACTIVE_ERR -9001 /* RTAS Cannot Overwrite Active Img */
49 #define MANAGE_NO_OP -1099 /* No operation initiated by user */
50 #define MANAGE_PARAM_ERR -3 /* RTAS Parameter Error */
51 #define MANAGE_HW_ERR -1 /* RTAS Hardware Error */
53 /* Validate image status values */
54 #define VALIDATE_AUTH -9002 /* RTAS Not Service Authority Partition */
55 #define VALIDATE_NO_OP -1099 /* No operation initiated by the user */
56 #define VALIDATE_INCOMPLETE -1002 /* User copied < VALIDATE_BUF_SIZE */
57 #define VALIDATE_READY -1001 /* Firmware image ready for validation */
58 #define VALIDATE_PARAM_ERR -3 /* RTAS Parameter Error */
59 #define VALIDATE_HW_ERR -1 /* RTAS Hardware Error */
61 /* ibm,validate-flash-image update result tokens */
62 #define VALIDATE_TMP_UPDATE 0 /* T side will be updated */
63 #define VALIDATE_FLASH_AUTH 1 /* Partition does not have authority */
64 #define VALIDATE_INVALID_IMG 2 /* Candidate image is not valid */
65 #define VALIDATE_CUR_UNKNOWN 3 /* Current fixpack level is unknown */
67 * Current T side will be committed to P side before being replace with new
68 * image, and the new image is downlevel from current image
70 #define VALIDATE_TMP_COMMIT_DL 4
72 * Current T side will be committed to P side before being replaced with new
75 #define VALIDATE_TMP_COMMIT 5
77 * T side will be updated with a downlevel image
79 #define VALIDATE_TMP_UPDATE_DL 6
81 * The candidate image's release date is later than the system's firmware
82 * service entitlement date - service warranty period has expired
84 #define VALIDATE_OUT_OF_WRNTY 7
86 /* ibm,manage-flash-image operation tokens */
87 #define RTAS_REJECT_TMP_IMG 0
88 #define RTAS_COMMIT_TMP_IMG 1
91 #define VALIDATE_BUF_SIZE 4096
92 #define RTAS_MSG_MAXLEN 64
94 /* Quirk - RTAS requires 4k list length and block size */
95 #define RTAS_BLKLIST_LENGTH 4096
96 #define RTAS_BLK_SIZE 4096
100 unsigned long length
;
103 /* This struct is very similar but not identical to
104 * that needed by the rtas flash update.
105 * All we need to do for rtas is rewrite num_blocks
106 * into a version/length and translate the pointers
109 #define FLASH_BLOCKS_PER_NODE ((RTAS_BLKLIST_LENGTH - 16) / sizeof(struct flash_block))
110 struct flash_block_list
{
111 unsigned long num_blocks
;
112 struct flash_block_list
*next
;
113 struct flash_block blocks
[FLASH_BLOCKS_PER_NODE
];
116 static struct flash_block_list
*rtas_firmware_flash_list
;
118 /* Use slab cache to guarantee 4k alignment */
119 static struct kmem_cache
*flash_block_cache
= NULL
;
121 #define FLASH_BLOCK_LIST_VERSION (1UL)
124 * Local copy of the flash block list.
126 * The rtas_firmware_flash_list varable will be
127 * set once the data is fully read.
129 * For convenience as we build the list we use virtual addrs,
130 * we do not fill in the version number, and the length field
131 * is treated as the number of entries currently in the block
132 * (i.e. not a byte count). This is all fixed when calling
136 /* Status int must be first member of struct */
137 struct rtas_update_flash_t
139 int status
; /* Flash update status */
140 struct flash_block_list
*flist
; /* Local copy of flash block list */
143 /* Status int must be first member of struct */
144 struct rtas_manage_flash_t
146 int status
; /* Returned status */
149 /* Status int must be first member of struct */
150 struct rtas_validate_flash_t
152 int status
; /* Returned status */
153 char *buf
; /* Candidate image buffer */
154 unsigned int buf_size
; /* Size of image buf */
155 unsigned int update_results
; /* Update results token */
158 static struct rtas_update_flash_t rtas_update_flash_data
;
159 static struct rtas_manage_flash_t rtas_manage_flash_data
;
160 static struct rtas_validate_flash_t rtas_validate_flash_data
;
161 static DEFINE_MUTEX(rtas_update_flash_mutex
);
162 static DEFINE_MUTEX(rtas_manage_flash_mutex
);
163 static DEFINE_MUTEX(rtas_validate_flash_mutex
);
165 /* Do simple sanity checks on the flash image. */
166 static int flash_list_valid(struct flash_block_list
*flist
)
168 struct flash_block_list
*f
;
170 unsigned long block_size
, image_size
;
172 /* Paranoid self test here. We also collect the image size. */
174 for (f
= flist
; f
; f
= f
->next
) {
175 for (i
= 0; i
< f
->num_blocks
; i
++) {
176 if (f
->blocks
[i
].data
== NULL
) {
177 return FLASH_IMG_NULL_DATA
;
179 block_size
= f
->blocks
[i
].length
;
180 if (block_size
<= 0 || block_size
> RTAS_BLK_SIZE
) {
181 return FLASH_IMG_BAD_LEN
;
183 image_size
+= block_size
;
187 if (image_size
< (256 << 10)) {
192 printk(KERN_INFO
"FLASH: flash image with %ld bytes stored for hardware flash on reboot\n", image_size
);
194 return FLASH_IMG_READY
;
197 static void free_flash_list(struct flash_block_list
*f
)
199 struct flash_block_list
*next
;
203 for (i
= 0; i
< f
->num_blocks
; i
++)
204 kmem_cache_free(flash_block_cache
, f
->blocks
[i
].data
);
206 kmem_cache_free(flash_block_cache
, f
);
211 static int rtas_flash_release(struct inode
*inode
, struct file
*file
)
213 struct rtas_update_flash_t
*const uf
= &rtas_update_flash_data
;
215 mutex_lock(&rtas_update_flash_mutex
);
218 /* File was opened in write mode for a new flash attempt */
219 /* Clear saved list */
220 if (rtas_firmware_flash_list
) {
221 free_flash_list(rtas_firmware_flash_list
);
222 rtas_firmware_flash_list
= NULL
;
225 if (uf
->status
!= FLASH_AUTH
)
226 uf
->status
= flash_list_valid(uf
->flist
);
228 if (uf
->status
== FLASH_IMG_READY
)
229 rtas_firmware_flash_list
= uf
->flist
;
231 free_flash_list(uf
->flist
);
236 mutex_unlock(&rtas_update_flash_mutex
);
240 static size_t get_flash_status_msg(int status
, char *buf
)
247 msg
= "error: this partition does not have service authority\n";
250 msg
= "info: no firmware image for flash\n";
252 case FLASH_IMG_SHORT
:
253 msg
= "error: flash image short\n";
255 case FLASH_IMG_BAD_LEN
:
256 msg
= "error: internal error bad length\n";
258 case FLASH_IMG_NULL_DATA
:
259 msg
= "error: internal error null data\n";
261 case FLASH_IMG_READY
:
262 msg
= "ready: firmware image ready for flash on reboot\n";
265 return sprintf(buf
, "error: unexpected status value %d\n",
270 memcpy(buf
, msg
, len
+ 1);
274 /* Reading the proc file will show status (not the firmware contents) */
275 static ssize_t
rtas_flash_read_msg(struct file
*file
, char __user
*buf
,
276 size_t count
, loff_t
*ppos
)
278 struct rtas_update_flash_t
*const uf
= &rtas_update_flash_data
;
279 char msg
[RTAS_MSG_MAXLEN
];
283 mutex_lock(&rtas_update_flash_mutex
);
285 mutex_unlock(&rtas_update_flash_mutex
);
287 /* Read as text message */
288 len
= get_flash_status_msg(status
, msg
);
289 return simple_read_from_buffer(buf
, count
, ppos
, msg
, len
);
292 static ssize_t
rtas_flash_read_num(struct file
*file
, char __user
*buf
,
293 size_t count
, loff_t
*ppos
)
295 struct rtas_update_flash_t
*const uf
= &rtas_update_flash_data
;
296 char msg
[RTAS_MSG_MAXLEN
];
299 mutex_lock(&rtas_update_flash_mutex
);
301 mutex_unlock(&rtas_update_flash_mutex
);
304 sprintf(msg
, "%d\n", status
);
305 return simple_read_from_buffer(buf
, count
, ppos
, msg
, strlen(msg
));
308 /* We could be much more efficient here. But to keep this function
309 * simple we allocate a page to the block list no matter how small the
310 * count is. If the system is low on memory it will be just as well
313 static ssize_t
rtas_flash_write(struct file
*file
, const char __user
*buffer
,
314 size_t count
, loff_t
*off
)
316 struct rtas_update_flash_t
*const uf
= &rtas_update_flash_data
;
319 struct flash_block_list
*fl
;
321 mutex_lock(&rtas_update_flash_mutex
);
323 if (uf
->status
== FLASH_AUTH
|| count
== 0)
324 goto out
; /* discard data */
326 /* In the case that the image is not ready for flashing, the memory
327 * allocated for the block list will be freed upon the release of the
330 if (uf
->flist
== NULL
) {
331 uf
->flist
= kmem_cache_zalloc(flash_block_cache
, GFP_KERNEL
);
338 fl
= fl
->next
; /* seek to last block_list for append */
339 next_free
= fl
->num_blocks
;
340 if (next_free
== FLASH_BLOCKS_PER_NODE
) {
341 /* Need to allocate another block_list */
342 fl
->next
= kmem_cache_zalloc(flash_block_cache
, GFP_KERNEL
);
349 if (count
> RTAS_BLK_SIZE
)
350 count
= RTAS_BLK_SIZE
;
351 p
= kmem_cache_zalloc(flash_block_cache
, GFP_KERNEL
);
355 if(copy_from_user(p
, buffer
, count
)) {
356 kmem_cache_free(flash_block_cache
, p
);
360 fl
->blocks
[next_free
].data
= p
;
361 fl
->blocks
[next_free
].length
= count
;
364 mutex_unlock(&rtas_update_flash_mutex
);
370 mutex_unlock(&rtas_update_flash_mutex
);
375 * Flash management routines.
377 static void manage_flash(struct rtas_manage_flash_t
*args_buf
, unsigned int op
)
382 rc
= rtas_call(rtas_token("ibm,manage-flash-image"), 1, 1,
384 } while (rtas_busy_delay(rc
));
386 args_buf
->status
= rc
;
389 static ssize_t
manage_flash_read(struct file
*file
, char __user
*buf
,
390 size_t count
, loff_t
*ppos
)
392 struct rtas_manage_flash_t
*const args_buf
= &rtas_manage_flash_data
;
393 char msg
[RTAS_MSG_MAXLEN
];
396 mutex_lock(&rtas_manage_flash_mutex
);
397 status
= args_buf
->status
;
398 mutex_unlock(&rtas_manage_flash_mutex
);
400 msglen
= sprintf(msg
, "%d\n", status
);
401 return simple_read_from_buffer(buf
, count
, ppos
, msg
, msglen
);
404 static ssize_t
manage_flash_write(struct file
*file
, const char __user
*buf
,
405 size_t count
, loff_t
*off
)
407 struct rtas_manage_flash_t
*const args_buf
= &rtas_manage_flash_data
;
408 static const char reject_str
[] = "0";
409 static const char commit_str
[] = "1";
413 mutex_lock(&rtas_manage_flash_mutex
);
415 if ((args_buf
->status
== MANAGE_AUTH
) || (count
== 0))
420 if (count
> 9) count
= 9;
422 if (copy_from_user (stkbuf
, buf
, count
))
424 if (strncmp(stkbuf
, reject_str
, strlen(reject_str
)) == 0)
425 op
= RTAS_REJECT_TMP_IMG
;
426 else if (strncmp(stkbuf
, commit_str
, strlen(commit_str
)) == 0)
427 op
= RTAS_COMMIT_TMP_IMG
;
430 if (op
== -1) { /* buf is empty, or contains invalid string */
435 manage_flash(args_buf
, op
);
437 mutex_unlock(&rtas_manage_flash_mutex
);
441 mutex_unlock(&rtas_manage_flash_mutex
);
446 * Validation routines.
448 static void validate_flash(struct rtas_validate_flash_t
*args_buf
)
450 int token
= rtas_token("ibm,validate-flash-image");
456 spin_lock(&rtas_data_buf_lock
);
457 memcpy(rtas_data_buf
, args_buf
->buf
, VALIDATE_BUF_SIZE
);
458 rc
= rtas_call(token
, 2, 2, &update_results
,
459 (u32
) __pa(rtas_data_buf
), args_buf
->buf_size
);
460 memcpy(args_buf
->buf
, rtas_data_buf
, VALIDATE_BUF_SIZE
);
461 spin_unlock(&rtas_data_buf_lock
);
462 } while (rtas_busy_delay(rc
));
464 args_buf
->status
= rc
;
465 args_buf
->update_results
= update_results
;
468 static int get_validate_flash_msg(struct rtas_validate_flash_t
*args_buf
,
473 if (args_buf
->status
>= VALIDATE_TMP_UPDATE
) {
474 n
= sprintf(msg
, "%d\n", args_buf
->update_results
);
475 if ((args_buf
->update_results
>= VALIDATE_CUR_UNKNOWN
) ||
476 (args_buf
->update_results
== VALIDATE_TMP_UPDATE
))
477 n
+= sprintf(msg
+ n
, "%s\n", args_buf
->buf
);
479 n
= sprintf(msg
, "%d\n", args_buf
->status
);
484 static ssize_t
validate_flash_read(struct file
*file
, char __user
*buf
,
485 size_t count
, loff_t
*ppos
)
487 struct rtas_validate_flash_t
*const args_buf
=
488 &rtas_validate_flash_data
;
489 char msg
[RTAS_MSG_MAXLEN
];
492 mutex_lock(&rtas_validate_flash_mutex
);
493 msglen
= get_validate_flash_msg(args_buf
, msg
);
494 mutex_unlock(&rtas_validate_flash_mutex
);
496 return simple_read_from_buffer(buf
, count
, ppos
, msg
, msglen
);
499 static ssize_t
validate_flash_write(struct file
*file
, const char __user
*buf
,
500 size_t count
, loff_t
*off
)
502 struct rtas_validate_flash_t
*const args_buf
=
503 &rtas_validate_flash_data
;
506 mutex_lock(&rtas_validate_flash_mutex
);
508 /* We are only interested in the first 4K of the
510 if ((*off
>= VALIDATE_BUF_SIZE
) ||
511 (args_buf
->status
== VALIDATE_AUTH
)) {
513 mutex_unlock(&rtas_validate_flash_mutex
);
517 if (*off
+ count
>= VALIDATE_BUF_SIZE
) {
518 count
= VALIDATE_BUF_SIZE
- *off
;
519 args_buf
->status
= VALIDATE_READY
;
521 args_buf
->status
= VALIDATE_INCOMPLETE
;
524 if (!access_ok(VERIFY_READ
, buf
, count
)) {
528 if (copy_from_user(args_buf
->buf
+ *off
, buf
, count
)) {
536 mutex_unlock(&rtas_validate_flash_mutex
);
540 static int validate_flash_release(struct inode
*inode
, struct file
*file
)
542 struct rtas_validate_flash_t
*const args_buf
=
543 &rtas_validate_flash_data
;
545 mutex_lock(&rtas_validate_flash_mutex
);
547 if (args_buf
->status
== VALIDATE_READY
) {
548 args_buf
->buf_size
= VALIDATE_BUF_SIZE
;
549 validate_flash(args_buf
);
552 mutex_unlock(&rtas_validate_flash_mutex
);
557 * On-reboot flash update applicator.
559 static void rtas_flash_firmware(int reboot_type
)
561 unsigned long image_size
;
562 struct flash_block_list
*f
, *next
, *flist
;
563 unsigned long rtas_block_list
;
564 int i
, status
, update_token
;
566 if (rtas_firmware_flash_list
== NULL
)
567 return; /* nothing to do */
569 if (reboot_type
!= SYS_RESTART
) {
570 printk(KERN_ALERT
"FLASH: firmware flash requires a reboot\n");
571 printk(KERN_ALERT
"FLASH: the firmware image will NOT be flashed\n");
575 update_token
= rtas_token("ibm,update-flash-64-and-reboot");
576 if (update_token
== RTAS_UNKNOWN_SERVICE
) {
577 printk(KERN_ALERT
"FLASH: ibm,update-flash-64-and-reboot "
578 "is not available -- not a service partition?\n");
579 printk(KERN_ALERT
"FLASH: firmware will not be flashed\n");
584 * Just before starting the firmware flash, cancel the event scan work
585 * to avoid any soft lockup issues.
587 rtas_cancel_event_scan();
590 * NOTE: the "first" block must be under 4GB, so we create
591 * an entry with no data blocks in the reserved buffer in
592 * the kernel data segment.
594 spin_lock(&rtas_data_buf_lock
);
595 flist
= (struct flash_block_list
*)&rtas_data_buf
[0];
596 flist
->num_blocks
= 0;
597 flist
->next
= rtas_firmware_flash_list
;
598 rtas_block_list
= __pa(flist
);
599 if (rtas_block_list
>= 4UL*1024*1024*1024) {
600 printk(KERN_ALERT
"FLASH: kernel bug...flash list header addr above 4GB\n");
601 spin_unlock(&rtas_data_buf_lock
);
605 printk(KERN_ALERT
"FLASH: preparing saved firmware image for flash\n");
606 /* Update the block_list in place. */
607 rtas_firmware_flash_list
= NULL
; /* too hard to backout on error */
609 for (f
= flist
; f
; f
= next
) {
610 /* Translate data addrs to absolute */
611 for (i
= 0; i
< f
->num_blocks
; i
++) {
612 f
->blocks
[i
].data
= (char *)__pa(f
->blocks
[i
].data
);
613 image_size
+= f
->blocks
[i
].length
;
616 /* Don't translate NULL pointer for last entry */
618 f
->next
= (struct flash_block_list
*)__pa(f
->next
);
621 /* make num_blocks into the version/length field */
622 f
->num_blocks
= (FLASH_BLOCK_LIST_VERSION
<< 56) | ((f
->num_blocks
+1)*16);
625 printk(KERN_ALERT
"FLASH: flash image is %ld bytes\n", image_size
);
626 printk(KERN_ALERT
"FLASH: performing flash and reboot\n");
627 rtas_progress("Flashing \n", 0x0);
628 rtas_progress("Please Wait... ", 0x0);
629 printk(KERN_ALERT
"FLASH: this will take several minutes. Do not power off!\n");
630 status
= rtas_call(update_token
, 1, 1, NULL
, rtas_block_list
);
631 switch (status
) { /* should only get "bad" status */
633 printk(KERN_ALERT
"FLASH: success\n");
636 printk(KERN_ALERT
"FLASH: hardware error. Firmware may not be not flashed\n");
639 printk(KERN_ALERT
"FLASH: image is corrupt or not correct for this platform. Firmware not flashed\n");
642 printk(KERN_ALERT
"FLASH: flash failed when partially complete. System may not reboot\n");
645 printk(KERN_ALERT
"FLASH: unknown flash return code %d\n", status
);
648 spin_unlock(&rtas_data_buf_lock
);
652 * Manifest of proc files to create
654 struct rtas_flash_file
{
655 const char *filename
;
656 const char *rtas_call_name
;
658 const struct file_operations fops
;
661 static const struct rtas_flash_file rtas_flash_files
[] = {
663 .filename
= "powerpc/rtas/" FIRMWARE_FLASH_NAME
,
664 .rtas_call_name
= "ibm,update-flash-64-and-reboot",
665 .status
= &rtas_update_flash_data
.status
,
666 .fops
.read
= rtas_flash_read_msg
,
667 .fops
.write
= rtas_flash_write
,
668 .fops
.release
= rtas_flash_release
,
669 .fops
.llseek
= default_llseek
,
672 .filename
= "powerpc/rtas/" FIRMWARE_UPDATE_NAME
,
673 .rtas_call_name
= "ibm,update-flash-64-and-reboot",
674 .status
= &rtas_update_flash_data
.status
,
675 .fops
.read
= rtas_flash_read_num
,
676 .fops
.write
= rtas_flash_write
,
677 .fops
.release
= rtas_flash_release
,
678 .fops
.llseek
= default_llseek
,
681 .filename
= "powerpc/rtas/" VALIDATE_FLASH_NAME
,
682 .rtas_call_name
= "ibm,validate-flash-image",
683 .status
= &rtas_validate_flash_data
.status
,
684 .fops
.read
= validate_flash_read
,
685 .fops
.write
= validate_flash_write
,
686 .fops
.release
= validate_flash_release
,
687 .fops
.llseek
= default_llseek
,
690 .filename
= "powerpc/rtas/" MANAGE_FLASH_NAME
,
691 .rtas_call_name
= "ibm,manage-flash-image",
692 .status
= &rtas_manage_flash_data
.status
,
693 .fops
.read
= manage_flash_read
,
694 .fops
.write
= manage_flash_write
,
695 .fops
.llseek
= default_llseek
,
699 static int __init
rtas_flash_init(void)
703 if (rtas_token("ibm,update-flash-64-and-reboot") ==
704 RTAS_UNKNOWN_SERVICE
) {
705 pr_info("rtas_flash: no firmware flash support\n");
709 rtas_validate_flash_data
.buf
= kzalloc(VALIDATE_BUF_SIZE
, GFP_KERNEL
);
710 if (!rtas_validate_flash_data
.buf
)
713 flash_block_cache
= kmem_cache_create("rtas_flash_cache",
714 RTAS_BLK_SIZE
, RTAS_BLK_SIZE
, 0,
716 if (!flash_block_cache
) {
717 printk(KERN_ERR
"%s: failed to create block cache\n",
722 for (i
= 0; i
< ARRAY_SIZE(rtas_flash_files
); i
++) {
723 const struct rtas_flash_file
*f
= &rtas_flash_files
[i
];
726 if (!proc_create(f
->filename
, S_IRUSR
| S_IWUSR
, NULL
, &f
->fops
))
730 * This code assumes that the status int is the first member of the
733 token
= rtas_token(f
->rtas_call_name
);
734 if (token
== RTAS_UNKNOWN_SERVICE
)
735 *f
->status
= FLASH_AUTH
;
737 *f
->status
= FLASH_NO_OP
;
740 rtas_flash_term_hook
= rtas_flash_firmware
;
745 const struct rtas_flash_file
*f
= &rtas_flash_files
[i
];
746 remove_proc_entry(f
->filename
, NULL
);
749 kmem_cache_destroy(flash_block_cache
);
751 kfree(rtas_validate_flash_data
.buf
);
755 static void __exit
rtas_flash_cleanup(void)
759 rtas_flash_term_hook
= NULL
;
761 if (rtas_firmware_flash_list
) {
762 free_flash_list(rtas_firmware_flash_list
);
763 rtas_firmware_flash_list
= NULL
;
766 for (i
= 0; i
< ARRAY_SIZE(rtas_flash_files
); i
++) {
767 const struct rtas_flash_file
*f
= &rtas_flash_files
[i
];
768 remove_proc_entry(f
->filename
, NULL
);
771 kmem_cache_destroy(flash_block_cache
);
772 kfree(rtas_validate_flash_data
.buf
);
775 module_init(rtas_flash_init
);
776 module_exit(rtas_flash_cleanup
);
777 MODULE_LICENSE("GPL");