These patches are based on Willy's cleanup patches https://lkml.org/lkml/2020/3/31/609. The first two patches indroduce defines to make it more clear why cmd_count in struct floppy_raw_cmd allows out-of-bounds access for cmd, reply_count, reply fields. The last one handles the warning. Changes in v2: - add FD_RAW_CMD_FULLSIZE to the second patch - add union with fullcmd to struct floppy_raw_cmd in the last patch Denis Efremov (3): floppy: add FD_AUTODETECT_SIZE define for struct floppy_drive_params floppy: add defines for sizes of cmd & reply buffers of floppy_raw_cmd floppy: suppress UBSAN warning in setup_rw_floppy() drivers/block/floppy.c | 34 +++++++++++++--------------------- include/uapi/linux/fd.h | 26 ++++++++++++++++++++++---- 2 files changed, 35 insertions(+), 25 deletions(-) -- 2.25.3
