WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#21: 
new file mode 100644

CHECK: Prefer using the BIT macro
#32: FILE: tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c:7:
+#define PULL_MAX	(1 << 31)

CHECK: Prefer using the BIT macro
#33: FILE: tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c:8:
+#define PULL_PLUS_ONE	(1 << 30)

WARNING: line length of 83 exceeds 80 columns
#105: FILE: tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c:80:
+		int headroom = XDP_PACKET_HEADROOM - meta_len - skel->bss->xdpf_sz;

WARNING: line length of 82 exceeds 80 columns
#123: FILE: tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c:98:
+	ASSERT_EQ(topts.data_size_out, buff_len, "linear + non-linear data size");

CHECK: Please don't use multiple blank lines
#172: FILE: tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c:147:
+
+

total: 0 errors, 3 warnings, 3 checks, 222 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 c9ee83c62f0e ("selftests/bpf: Test bpf_xdp_pull_data") 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, 3 checks, 222 lines checked