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-rw-r--r--arch/powerpc/kernel/nvram_64.c56
1 files changed, 17 insertions, 39 deletions
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 0ed31f220482..ad461e735aec 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -139,8 +139,8 @@ out:
139 139
140} 140}
141 141
142static int dev_nvram_ioctl(struct inode *inode, struct file *file, 142static long dev_nvram_ioctl(struct file *file, unsigned int cmd,
143 unsigned int cmd, unsigned long arg) 143 unsigned long arg)
144{ 144{
145 switch(cmd) { 145 switch(cmd) {
146#ifdef CONFIG_PPC_PMAC 146#ifdef CONFIG_PPC_PMAC
@@ -169,11 +169,11 @@ static int dev_nvram_ioctl(struct inode *inode, struct file *file,
169} 169}
170 170
171const struct file_operations nvram_fops = { 171const struct file_operations nvram_fops = {
172 .owner = THIS_MODULE, 172 .owner = THIS_MODULE,
173 .llseek = dev_nvram_llseek, 173 .llseek = dev_nvram_llseek,
174 .read = dev_nvram_read, 174 .read = dev_nvram_read,
175 .write = dev_nvram_write, 175 .write = dev_nvram_write,
176 .ioctl = dev_nvram_ioctl, 176 .unlocked_ioctl = dev_nvram_ioctl,
177}; 177};
178 178
179static struct miscdevice nvram_dev = { 179static struct miscdevice nvram_dev = {
@@ -184,7 +184,7 @@ static struct miscdevice nvram_dev = {
184 184
185 185
186#ifdef DEBUG_NVRAM 186#ifdef DEBUG_NVRAM
187static void nvram_print_partitions(char * label) 187static void __init nvram_print_partitions(char * label)
188{ 188{
189 struct list_head * p; 189 struct list_head * p;
190 struct nvram_partition * tmp_part; 190 struct nvram_partition * tmp_part;
@@ -202,7 +202,7 @@ static void nvram_print_partitions(char * label)
202#endif 202#endif
203 203
204 204
205static int nvram_write_header(struct nvram_partition * part) 205static int __init nvram_write_header(struct nvram_partition * part)
206{ 206{
207 loff_t tmp_index; 207 loff_t tmp_index;
208 int rc; 208 int rc;
@@ -214,7 +214,7 @@ static int nvram_write_header(struct nvram_partition * part)
214} 214}
215 215
216 216
217static unsigned char nvram_checksum(struct nvram_header *p) 217static unsigned char __init nvram_checksum(struct nvram_header *p)
218{ 218{
219 unsigned int c_sum, c_sum2; 219 unsigned int c_sum, c_sum2;
220 unsigned short *sp = (unsigned short *)p->name; /* assume 6 shorts */ 220 unsigned short *sp = (unsigned short *)p->name; /* assume 6 shorts */
@@ -228,32 +228,7 @@ static unsigned char nvram_checksum(struct nvram_header *p)
228 return c_sum; 228 return c_sum;
229} 229}
230 230
231 231static int __init nvram_remove_os_partition(void)
232/*
233 * Find an nvram partition, sig can be 0 for any
234 * partition or name can be NULL for any name, else
235 * tries to match both
236 */
237struct nvram_partition *nvram_find_partition(int sig, const char *name)
238{
239 struct nvram_partition * part;
240 struct list_head * p;
241
242 list_for_each(p, &nvram_part->partition) {
243 part = list_entry(p, struct nvram_partition, partition);
244
245 if (sig && part->header.signature != sig)
246 continue;
247 if (name && 0 != strncmp(name, part->header.name, 12))
248 continue;
249 return part;
250 }
251 return NULL;
252}
253EXPORT_SYMBOL(nvram_find_partition);
254
255
256static int nvram_remove_os_partition(void)
257{ 232{
258 struct list_head *i; 233 struct list_head *i;
259 struct list_head *j; 234 struct list_head *j;
@@ -319,7 +294,7 @@ static int nvram_remove_os_partition(void)
319 * Will create a partition starting at the first free 294 * Will create a partition starting at the first free
320 * space found if space has enough room. 295 * space found if space has enough room.
321 */ 296 */
322static int nvram_create_os_partition(void) 297static int __init nvram_create_os_partition(void)
323{ 298{
324 struct nvram_partition *part; 299 struct nvram_partition *part;
325 struct nvram_partition *new_part; 300 struct nvram_partition *new_part;
@@ -422,7 +397,7 @@ static int nvram_create_os_partition(void)
422 * 5.) If the max chunk cannot be allocated then try finding a chunk 397 * 5.) If the max chunk cannot be allocated then try finding a chunk
423 * that will satisfy the minum needed (NVRAM_MIN_REQ). 398 * that will satisfy the minum needed (NVRAM_MIN_REQ).
424 */ 399 */
425static int nvram_setup_partition(void) 400static int __init nvram_setup_partition(void)
426{ 401{
427 struct list_head * p; 402 struct list_head * p;
428 struct nvram_partition * part; 403 struct nvram_partition * part;
@@ -480,7 +455,7 @@ static int nvram_setup_partition(void)
480} 455}
481 456
482 457
483static int nvram_scan_partitions(void) 458static int __init nvram_scan_partitions(void)
484{ 459{
485 loff_t cur_index = 0; 460 loff_t cur_index = 0;
486 struct nvram_header phead; 461 struct nvram_header phead;
@@ -706,6 +681,9 @@ int nvram_clear_error_log(void)
706 int clear_word = ERR_FLAG_ALREADY_LOGGED; 681 int clear_word = ERR_FLAG_ALREADY_LOGGED;
707 int rc; 682 int rc;
708 683
684 if (nvram_error_log_index == -1)
685 return -1;
686
709 tmp_index = nvram_error_log_index; 687 tmp_index = nvram_error_log_index;
710 688
711 rc = ppc_md.nvram_write((char *)&clear_word, sizeof(int), &tmp_index); 689 rc = ppc_md.nvram_write((char *)&clear_word, sizeof(int), &tmp_index);