WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#24: 
new file mode 100644

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#29: FILE: tools/testing/selftests/bpf/prog_tests/so_timestamping.c:1:
+#include "test_progs.h"

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#114: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:1:
+#include "vmlinux.h"

WARNING: line length of 84 exceeds 80 columns
#219: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:106:
+	n = bpf_loop(ARRAY_SIZE(sol_socket_tests), bpf_test_socket_sockopt, &lc, 0);

WARNING: line length of 90 exceeds 80 columns
#235: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:122:
+		ret = bpf_setsockopt(ctx, level, t->opt, (void *)&t->new, sizeof(t->new));

CHECK: Alignment should match open parenthesis
#283: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:170:
+static bool bpf_test_access_bpf_calls(struct bpf_sock_ops *skops,
+				     const struct sock *sk)

CHECK: multiple assignments should be avoided
#338: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:225:
+		delay = val->sched_delay = timestamp - val->sendmsg_ns;

CHECK: multiple assignments should be avoided
#342: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:229:
+		delay = val->sw_snd_delay = timestamp - prior_ts;

WARNING: line length of 82 exceeds 80 columns
#345: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:232:
+		prior_ts = val->sw_snd_delay + val->sched_delay + val->sendmsg_ns;

CHECK: multiple assignments should be avoided
#346: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:233:
+		delay = val->ack_delay = timestamp - prior_ts;

WARNING: line length of 88 exceeds 80 columns
#362: FILE: tools/testing/selftests/bpf/progs/so_timestamping.c:249:
+int BPF_PROG(trace_tcp_sendmsg_locked, struct sock *sk, struct msghdr *msg, size_t size)

total: 0 errors, 7 warnings, 4 checks, 385 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 6739ebcb50cc ("selftests/bpf: add simple bpf tests in the tx path for timestamping feature") 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, 7 warnings, 4 checks, 385 lines checked