8131 	} cands[];  member
8134 static void bpf_free_cands(struct bpf_cand_cache *cands)  in bpf_free_cands()  argument
8136 	if (!cands->cnt)  in bpf_free_cands()
8139 	kfree(cands);  in bpf_free_cands()
8142 static void bpf_free_cands_from_cache(struct bpf_cand_cache *cands)  in bpf_free_cands_from_cache()  argument
8144 	kfree(cands->name);  in bpf_free_cands_from_cache()
8145 	kfree(cands);  in bpf_free_cands_from_cache()
8169 			bpf_log(log, "%d", cc->cands[j].id);  in __print_cand_cache()
8188 static u32 hash_cands(struct bpf_cand_cache *cands)  in hash_cands()  argument
8190 	return jhash(cands->name, cands->name_len, 0);  in hash_cands()
8193 static struct bpf_cand_cache *check_cand_cache(struct bpf_cand_cache *cands,  in check_cand_cache()  argument
8197 	struct bpf_cand_cache *cc = cache[hash_cands(cands) % cache_size];  in check_cand_cache()
8199 	if (cc && cc->name_len == cands->name_len &&  in check_cand_cache()
8200 	    !strncmp(cc->name, cands->name, cands->name_len))  in check_cand_cache()
8207 	return offsetof(struct bpf_cand_cache, cands[cnt]);  in sizeof_cands()
8210 static struct bpf_cand_cache *populate_cand_cache(struct bpf_cand_cache *cands,  in populate_cand_cache()  argument
8214 	struct bpf_cand_cache **cc = &cache[hash_cands(cands) % cache_size], *new_cands;  in populate_cand_cache()
8220 	new_cands = kmemdup(cands, sizeof_cands(cands->cnt), GFP_KERNEL);  in populate_cand_cache()
8222 		bpf_free_cands(cands);  in populate_cand_cache()
8228 	new_cands->name = kmemdup_nul(cands->name, cands->name_len, GFP_KERNEL);  in populate_cand_cache()
8229 	bpf_free_cands(cands);  in populate_cand_cache()
8262 			if (cc->cands[j].btf == btf) {  in __purge_cand_cache()
8280 bpf_core_add_cands(struct bpf_cand_cache *cands, const struct btf *targ_btf,  in bpf_core_add_cands()  argument
8292 		if (btf_kind(t) != cands->kind)  in bpf_core_add_cands()
8304 		if (strncmp(cands->name, targ_name, cands->name_len) != 0)  in bpf_core_add_cands()
8308 		if (targ_essent_len != cands->name_len)  in bpf_core_add_cands()
8312 		new_cands = kmalloc(sizeof_cands(cands->cnt + 1), GFP_KERNEL);  in bpf_core_add_cands()
8314 			bpf_free_cands(cands);  in bpf_core_add_cands()
8318 		memcpy(new_cands, cands, sizeof_cands(cands->cnt));  in bpf_core_add_cands()
8319 		bpf_free_cands(cands);  in bpf_core_add_cands()
8320 		cands = new_cands;  in bpf_core_add_cands()
8321 		cands->cands[cands->cnt].btf = targ_btf;  in bpf_core_add_cands()
8322 		cands->cands[cands->cnt].id = i;  in bpf_core_add_cands()
8323 		cands->cnt++;  in bpf_core_add_cands()
8325 	return cands;  in bpf_core_add_cands()
8331 	struct bpf_cand_cache *cands, *cc, local_cand = {};  in bpf_core_find_cands()  local
8355 	cands = &local_cand;  in bpf_core_find_cands()
8356 	cands->name = name;  in bpf_core_find_cands()
8357 	cands->kind = btf_kind(local_type);  in bpf_core_find_cands()
8358 	cands->name_len = local_essent_len;  in bpf_core_find_cands()
8360 	cc = check_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);  in bpf_core_find_cands()
8369 	cands = bpf_core_add_cands(cands, main_btf, 1);  in bpf_core_find_cands()
8370 	if (IS_ERR(cands))  in bpf_core_find_cands()
8371 		return ERR_CAST(cands);  in bpf_core_find_cands()
8376 	cc = populate_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);  in bpf_core_find_cands()
8386 	cc = check_cand_cache(cands, module_cand_cache, MODULE_CAND_CACHE_SIZE);  in bpf_core_find_cands()
8401 		cands = bpf_core_add_cands(cands, mod_btf, btf_nr_types(main_btf));  in bpf_core_find_cands()
8403 		if (IS_ERR(cands))  in bpf_core_find_cands()
8404 			return ERR_CAST(cands);  in bpf_core_find_cands()
8413 	return populate_cand_cache(cands, module_cand_cache, MODULE_CAND_CACHE_SIZE);  in bpf_core_find_cands()
8420 	struct bpf_core_cand_list cands = {};  in bpf_core_apply()  local
8445 			cands.cands = kcalloc(cc->cnt, sizeof(*cands.cands), GFP_KERNEL);  in bpf_core_apply()
8446 			if (!cands.cands) {  in bpf_core_apply()
8454 				btf_kind_str[cc->kind], cc->name, cc->cands[i].id);  in bpf_core_apply()
8455 			cands.cands[i].btf = cc->cands[i].btf;  in bpf_core_apply()
8456 			cands.cands[i].id = cc->cands[i].id;  in bpf_core_apply()
8458 		cands.len = cc->cnt;  in bpf_core_apply()
8466 	err = bpf_core_calc_relo_insn((void *)ctx->log, relo, relo_idx, ctx->btf, &cands, specs,  in bpf_core_apply()
8477 		kfree(cands.cands);  in bpf_core_apply()