WARNING: line length of 100 exceeds 80 columns
#95: FILE: net/bpf/test_run.c:1009:
+	if ((kattr->test.flags & ~(BPF_F_TEST_SKB_CHECKSUM_COMPLETE | BPF_F_TEST_SKB_NON_LINEAR)) ||

WARNING: line length of 84 exceeds 80 columns
#164: FILE: net/bpf/test_run.c:1074:
+		/* eth_type_trans expects the Ethernet header in the linear area. */

WARNING: kfree(NULL) is safe and this check is probably not required
#192: FILE: net/bpf/test_run.c:1176:
+	if (data)
+		is_nonlinear ? __free_page(data) : kfree(data);

WARNING: line length of 82 exceeds 80 columns
#201: FILE: net/bpf/test_run.c:1302:
+	data = bpf_test_init(kattr, size, max_data_sz, headroom, tailroom, false);

WARNING: line length of 81 exceeds 80 columns
#210: FILE: net/bpf/test_run.c:1425:
+	data = bpf_test_init(kattr, kattr->test.data_size_in, size, 0, 0, false);

CHECK: Prefer using the BIT macro
#233: FILE: tools/include/uapi/linux/bpf.h:1452:
+#define BPF_F_TEST_SKB_NON_LINEAR	(1U << 3)

total: 0 errors, 5 warnings, 1 checks, 184 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 21222e167ba4 ("bpf: Craft non-linear skbs in BPF_PROG_TEST_RUN") 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, 5 warnings, 1 checks, 184 lines checked