CHECK: Prefer using the BIT macro
#50: FILE: tools/testing/selftests/drivers/net/hw/iou-zcrx.c:59:
+#define ZCRX_NOTIF_NO_BUFFERS		(1 << 0)

CHECK: Prefer using the BIT macro
#51: FILE: tools/testing/selftests/drivers/net/hw/iou-zcrx.c:60:
+#define ZCRX_NOTIF_COPY			(1 << 1)

CHECK: Prefer using the BIT macro
#52: FILE: tools/testing/selftests/drivers/net/hw/iou-zcrx.c:61:
+#define ZCRX_NOTIF_DESC_FLAG_STATS	(1 << 0)

WARNING: line length of 93 exceeds 80 columns
#123: FILE: tools/testing/selftests/drivers/net/hw/iou-zcrx.c:204:
+		ring_size += ALIGN_UP(sizeof(struct t_io_uring_zcrx_notif_stats), page_size);

total: 0 errors, 1 warnings, 3 checks, 287 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 55ecfc4e66e2 ("selftests: iou-zcrx: add notification and stats test for zcrx") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 1 warnings, 3 checks, 287 lines checked