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generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-22 08:16:59 +0000
class="p">(buf[i].size < master->erasesize) { /* Update numslots based on actual FIS directory size */ numslots = buf[i].size / sizeof(struct fis_image_desc); } break; } } if (i == numslots) { /* Didn't find it */ printk(KERN_NOTICE "No RedBoot partition table detected in %s\n", master->name); ret = 0; goto out; } for (i = 0; i < numslots; i++) { struct fis_list *new_fl, **prev; if (buf[i].name[0] == 0xff) { if (buf[i].name[1] == 0xff) { break; } else { continue; } } if (!redboot_checksum(&buf[i])) break; new_fl = kmalloc(sizeof(struct fis_list), GFP_KERNEL); namelen += strlen(buf[i].name)+1; if (!new_fl) { ret = -ENOMEM; goto out; } new_fl->img = &buf[i]; if (fis_origin) { buf[i].flash_base -= fis_origin; } else { buf[i].flash_base &= master->size-1; } /* I'm sure the JFFS2 code has done me permanent damage. * I now think the following is _normal_ */ prev = &fl; while(*prev && (*prev)->img->flash_base < new_fl->img->flash_base) prev = &(*prev)->next; new_fl->next = *prev; *prev = new_fl; nrparts++; } #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED if (fl->img->flash_base) { nrparts++; nulllen = sizeof(nullstring); } for (tmp_fl = fl; tmp_fl->next; tmp_fl = tmp_fl->next) { if (tmp_fl->img->flash_base + tmp_fl->img->size + master->erasesize <= tmp_fl->next->img->flash_base) { nrparts++; nulllen = sizeof(nullstring); } } #endif parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL); if (!parts) { ret = -ENOMEM; goto out; } nullname = (char *)&parts[nrparts]; #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED if (nulllen > 0) { strcpy(nullname, nullstring); } #endif names = nullname + nulllen; i=0; #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED if (fl->img->flash_base) { parts[0].name = nullname; parts[0].size = fl->img->flash_base; parts[0].offset = 0; i++; } #endif for ( ; i<nrparts; i++) { parts[i].size = fl->img->size; parts[i].offset = fl->img->flash_base; parts[i].name = names; strcpy(names, fl->img->name); #ifdef CONFIG_MTD_REDBOOT_PARTS_READONLY if (!memcmp(names, "RedBoot", 8) || !memcmp(names, "RedBoot config", 15) || !memcmp(names, "FIS directory", 14)) { parts[i].mask_flags = MTD_WRITEABLE; } #endif names += strlen(names)+1; #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) { i++; parts[i].offset = parts[i-1].size + parts[i-1].offset; parts[i].size = fl->next->img->flash_base - parts[i].offset; parts[i].name = nullname; } #endif tmp_fl = fl; fl = fl->next; kfree(tmp_fl); } ret = nrparts; *pparts = parts; out: while (fl) { struct fis_list *old = fl; fl = fl->next; kfree(old); } vfree(buf); return ret; } static struct mtd_part_parser redboot_parser = { .owner = THIS_MODULE, .parse_fn = parse_redboot_partitions, .name = "RedBoot", }; static int __init redboot_parser_init(void) { return register_mtd_parser(&redboot_parser); } static void __exit redboot_parser_exit(void) { deregister_mtd_parser(&redboot_parser); } module_init(redboot_parser_init); module_exit(redboot_parser_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); MODULE_DESCRIPTION("Parsing code for RedBoot Flash Image System (FIS) tables");
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-22 08:16:59 +0000