CHECK: Please use a blank line after function/struct/union/enum declarations
#38: FILE: tools/lib/bpf/libbpf.h:1290:
 };
+#define bpf_tc_hook__last_field qdisc

WARNING: line length of 90 exceeds 80 columns
#51: FILE: tools/lib/bpf/netlink.c:532:
+typedef int (*qdisc_config_t)(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook);

WARNING: line length of 84 exceeds 80 columns
#54: FILE: tools/lib/bpf/netlink.c:534:
+static int clsact_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook)

WARNING: line length of 83 exceeds 80 columns
#62: FILE: tools/lib/bpf/netlink.c:542:
+static int qdisc_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook)

total: 0 errors, 3 warnings, 1 checks, 70 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 1238862987ec ("libbpf: Support creating and destroying qdisc") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 1 checks, 70 lines checked