WARNING: 'registeration' may be misspelled - perhaps 'registration'?
#15: 
CAP_NET_ADMIN is required at the registeration step.
                                 ^^^^^^^^^^^^^

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#105: FILE: io_uring/net.c:94:
+	unsigned			msg_flags;

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#120: FILE: io_uring/net.c:1222:
+	unsigned ifq_idx;

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#321: FILE: io_uring/zcrx.c:521:
+	unsigned start, start_off;

CHECK: Alignment should match open parenthesis
#388: FILE: io_uring/zcrx.c:588:
+static int io_zcrx_tcp_recvmsg(struct io_kiocb *req, struct io_zcrx_ifq *ifq,
+				struct sock *sk, int flags,

CHECK: Please use a blank line after function/struct/union/enum declarations
#466: FILE: io_uring/zcrx.h:61:
 }
+static inline int io_zcrx_recv(struct io_kiocb *req, struct io_zcrx_ifq *ifq,

total: 0 errors, 4 warnings, 2 checks, 392 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 6d9c3022ce99 ("io_uring/zcrx: add io_recvzc request") 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, 4 warnings, 2 checks, 392 lines checked