kernel/bpf/btf.c

7086 	struct bpf_cand_cache *cc;
7103 	cc = bpf_core_find_cands(&ctx, type_id);
7104 	if (IS_ERR(cc)) {
7105 		err = PTR_ERR(cc);
7111 	if (cc->cnt != 1) {
7114 			cc->cnt == 0 ? "has no matches" : "is ambiguous");
7115 		err = cc->cnt == 0 ? -ENOENT : -ESRCH;
7118 	if (btf_is_module(cc->cands[0].btf)) {
7124 	kern_type_id = cc->cands[0].id;
8453 	struct bpf_cand_cache *cc;
8457 		cc = cache[i];
8458 		if (!cc)
8460 		bpf_log(log, "[%d]%s(", i, cc->name);
8461 		for (j = 0; j < cc->cnt; j++) {
8462 			bpf_log(log, "%d", cc->cands[j].id);
8463 			if (j < cc->cnt - 1)
8490 	struct bpf_cand_cache *cc = cache[hash_cands(cands) % cache_size];
8492 	if (cc && cc->name_len == cands->name_len &&
8493 	    !strncmp(cc->name, cands->name, cands->name_len))
8494 		return cc;
8507 	struct bpf_cand_cache **cc = &cache[hash_cands(cands) % cache_size], *new_cands;
8509 	if (*cc) {
8510 		bpf_free_cands_from_cache(*cc);
8511 		*cc = NULL;
8527 	*cc = new_cands;
8535 	struct bpf_cand_cache *cc;
8539 		cc = cache[i];
8540 		if (!cc)
8547 			bpf_free_cands_from_cache(cc);
8554 		for (j = 0; j < cc->cnt; j++)
8555 			if (cc->cands[j].btf == btf) {
8556 				bpf_free_cands_from_cache(cc);
8624 	struct bpf_cand_cache *cands, *cc, local_cand = {};
8653 	cc = check_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);
8655 	if (cc) {
8656 		if (cc->cnt)
8657 			return cc;
8669 	cc = populate_cand_cache(cands, vmlinux_cand_cache, VMLINUX_CAND_CACHE_SIZE);
8670 	if (IS_ERR(cc))
8671 		return ERR_CAST(cc);
8674 	if (cc->cnt)
8675 		return cc;
8679 	cc = check_cand_cache(cands, module_cand_cache, MODULE_CAND_CACHE_SIZE);
8680 	if (cc)
8681 		/* if cache has it return it even if cc->cnt == 0 */
8682 		return cc;
8726 		struct bpf_cand_cache *cc;
8730 		cc = bpf_core_find_cands(ctx, relo->type_id);
8731 		if (IS_ERR(cc)) {
8734 			err = PTR_ERR(cc);
8737 		if (cc->cnt) {
8738 			cands.cands = kcalloc(cc->cnt, sizeof(*cands.cands), GFP_KERNEL);
8744 		for (i = 0; i < cc->cnt; i++) {
8747 				btf_kind_str[cc->kind], cc->name, cc->cands[i].id);
8748 			cands.cands[i].btf = cc->cands[i].btf;
8749 			cands.cands[i].id = cc->cands[i].id;
8751 		cands.len = cc->cnt;