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Patches 3 and 4 introduce device-less zcrx instances for testing purposes, which always copy data via the fallback path. note, based on two other recently sent patches splitting out a uapi file and defining constants in zcrx.h Pavel Begunkov (4): io_uring/zcrx: fully clean area on error in io_import_umem() io_uring/zcrx: always dma map in advance io_uring/zcrx: extract netdev+area init into a helper io_uring/zcrx: implement device-less mode for zcrx include/uapi/linux/io_uring/zcrx.h | 9 +- io_uring/zcrx.c | 145 ++++++++++++++++------------- io_uring/zcrx.h | 2 +- 3 files changed, 90 insertions(+), 66 deletions(-) -- 2.52.0