7700 	} cands[];  member
7703 static void bpf_free_cands(struct bpf_cand_cache *cands)  in bpf_free_cands()  argument
7705 	if (!cands->cnt)  in bpf_free_cands()
7708 	kfree(cands);  in bpf_free_cands()
7711 static void bpf_free_cands_from_cache(struct bpf_cand_cache *cands)  in bpf_free_cands_from_cache()  argument
7713 	kfree(cands->name);  in bpf_free_cands_from_cache()
7714 	kfree(cands);  in bpf_free_cands_from_cache()
7738 			bpf_log(log, "%d", cc->cands[j].id);  in __print_cand_cache()
7757 static u32 hash_cands(struct bpf_cand_cache *cands)  in hash_cands()  argument
7759 	return jhash(cands->name, cands->name_len, 0);  in hash_cands()
7762 static struct bpf_cand_cache *check_cand_cache(struct bpf_cand_cache *cands,  in check_cand_cache()  argument
7766 	struct bpf_cand_cache *cc = cache[hash_cands(cands) % cache_size];  in check_cand_cache()
7768 	if (cc && cc->name_len == cands->name_len &&  in check_cand_cache()
7769 	    !strncmp(cc->name, cands->name, cands->name_len))  in check_cand_cache()
7776 	return offsetof(struct bpf_cand_cache, cands[cnt]);  in sizeof_cands()
7779 static struct bpf_cand_cache *populate_cand_cache(struct bpf_cand_cache *cands,  in populate_cand_cache()  argument
7783 	struct bpf_cand_cache **cc = &cache[hash_cands(cands) % cache_size], *new_cands;  in populate_cand_cache()
7789 	new_cands = kmemdup(cands, sizeof_cands(cands->cnt), GFP_KERNEL);  in populate_cand_cache()
7791 		bpf_free_cands(cands);  in populate_cand_cache()
7797 	new_cands->name = kmemdup_nul(cands->name, cands->name_len, GFP_KERNEL);  in populate_cand_cache()
7798 	bpf_free_cands(cands);  in populate_cand_cache()
7831 			if (cc->cands[j].btf == btf) {  in __purge_cand_cache()
7849 bpf_core_add_cands(struct bpf_cand_cache *cands, const struct btf *targ_btf,  in bpf_core_add_cands()  argument
7861 		if (btf_kind(t) != cands->kind)  in bpf_core_add_cands()
7873 		if (strncmp(cands->name, targ_name, cands->name_len) != 0)  in bpf_core_add_cands()
7877 		if (targ_essent_len != cands->name_len)  in bpf_core_add_cands()
7881 		new_cands = kmalloc(sizeof_cands(cands->cnt + 1), GFP_KERNEL);  in bpf_core_add_cands()
7883 			bpf_free_cands(cands);  in bpf_core_add_cands()
7887 		memcpy(new_cands, cands, sizeof_cands(cands->cnt));  in bpf_core_add_cands()
7888 		bpf_free_cands(cands);  in bpf_core_add_cands()
7889 		cands = new_cands;  in bpf_core_add_cands()
7890 		cands->cands[cands->cnt].btf = targ_btf;  in bpf_core_add_cands()
7891 		cands->cands[cands->cnt].id = i;  in bpf_core_add_cands()
7892 		cands->cnt++;  in bpf_core_add_cands()
7894 	return cands;  in bpf_core_add_cands()
7900 	struct bpf_cand_cache *cands, *cc, local_cand = {};  in bpf_core_find_cands()  local
7924 	cands = &local_cand;  in bpf_core_find_cands()
7925 	cands->name = name;  in bpf_core_find_cands()
7926 	cands->kind = btf_kind(local_type);  in bpf_core_find_cands()
7927 	cands->name_len = local_essent_len;  in bpf_core_find_cands()
7929 	cc = check_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);  in bpf_core_find_cands()
7938 	cands = bpf_core_add_cands(cands, main_btf, 1);  in bpf_core_find_cands()
7939 	if (IS_ERR(cands))  in bpf_core_find_cands()
7940 		return ERR_CAST(cands);  in bpf_core_find_cands()
7945 	cc = populate_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);  in bpf_core_find_cands()
7955 	cc = check_cand_cache(cands, module_cand_cache, MODULE_CAND_CACHE_SIZE);  in bpf_core_find_cands()
7970 		cands = bpf_core_add_cands(cands, mod_btf, btf_nr_types(main_btf));  in bpf_core_find_cands()
7972 		if (IS_ERR(cands))  in bpf_core_find_cands()
7973 			return ERR_CAST(cands);  in bpf_core_find_cands()
7982 	return populate_cand_cache(cands, module_cand_cache, MODULE_CAND_CACHE_SIZE);  in bpf_core_find_cands()
7989 	struct bpf_core_cand_list cands = {};  in bpf_core_apply()  local
8014 			cands.cands = kcalloc(cc->cnt, sizeof(*cands.cands), GFP_KERNEL);  in bpf_core_apply()
8015 			if (!cands.cands) {  in bpf_core_apply()
8023 				btf_kind_str[cc->kind], cc->name, cc->cands[i].id);  in bpf_core_apply()
8024 			cands.cands[i].btf = cc->cands[i].btf;  in bpf_core_apply()
8025 			cands.cands[i].id = cc->cands[i].id;  in bpf_core_apply()
8027 		cands.len = cc->cnt;  in bpf_core_apply()
8035 	err = bpf_core_calc_relo_insn((void *)ctx->log, relo, relo_idx, ctx->btf, &cands, specs,  in bpf_core_apply()
8046 		kfree(cands.cands);  in bpf_core_apply()