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Subject[PATCH v2 0/3] floppy: suppress UBSAN warning in setup_rw_floppy()
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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

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