[GIT PULL RESEND] Floppy cleanups for next

[Denis Efremov]

Rebased on for-5.8/drivers branch.

The following changes since commit 92decf118f1da4c866515f80387f9cf4d48611d6:

  nvme: define constants for identification values (2020-05-09 16:18:36 -0600)

are available in the Git repository at:

  https://github.com/evdenis/linux-floppy tags/floppy-for-5.8

for you to fetch changes up to 0836275df4db20daf040fff5d9a1da89c4c08a85:

  floppy: suppress UBSAN warning in setup_rw_floppy() (2020-05-12 19:34:57 +0300)

----------------------------------------------------------------
Floppy patches for 5.8

Cleanups:
  - symbolic register names for x86,sparc64,sparc32,powerpc,parisc,m68k
  - split of local/global variables for drive,fdc
  - UBSAN warning suppress in setup_rw_floppy()

Changes were compile tested on arm, sparc64, powerpc, m68k. Many patches
introduce no binary changes by using defines instead of magic numbers.
The patches were also tested with syzkaller and simple write/read/format
tests on real hardware.

Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>

----------------------------------------------------------------
Denis Efremov (4):
      floppy: use print_hex_dump() in setup_DMA()
      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()

Willy Tarreau (27):
      floppy: split the base port from the register in I/O accesses
      floppy: add references to 82077's extra registers
      floppy: use symbolic register names in the m68k port
      floppy: use symbolic register names in the parisc port
      floppy: use symbolic register names in the powerpc port
      floppy: use symbolic register names in the sparc32 port
      floppy: use symbolic register names in the sparc64 port
      floppy: use symbolic register names in the x86 port
      floppy: cleanup: make twaddle() not rely on current_{fdc,drive} anymore
      floppy: cleanup: make reset_fdc_info() not rely on current_fdc anymore
      floppy: cleanup: make show_floppy() not rely on current_fdc anymore
      floppy: cleanup: make wait_til_ready() not rely on current_fdc anymore
      floppy: cleanup: make output_byte() not rely on current_fdc anymore
      floppy: cleanup: make result() not rely on current_fdc anymore
      floppy: cleanup: make need_more_output() not rely on current_fdc anymore
      floppy: cleanup: make perpendicular_mode() not rely on current_fdc anymore
      floppy: cleanup: make fdc_configure() not rely on current_fdc anymore
      floppy: cleanup: make fdc_specify() not rely on current_{fdc,drive} anymore
      floppy: cleanup: make check_wp() not rely on current_{fdc,drive} anymore
      floppy: cleanup: make next_valid_format() not rely on current_drive anymore
      floppy: cleanup: make get_fdc_version() not rely on current_fdc anymore
      floppy: cleanup: do not iterate on current_fdc in DMA grab/release functions
      floppy: cleanup: add a few comments about expectations in certain functions
      floppy: cleanup: do not iterate on current_fdc in do_floppy_init()
      floppy: make sure to reset all FDCs upon resume()
      floppy: cleanup: get rid of current_reqD in favor of current_drive
      floppy: cleanup: make set_fdc() always set current_drive and current_fd

 arch/alpha/include/asm/floppy.h             |   4 +-
 arch/arm/include/asm/floppy.h               |   8 +-
 arch/m68k/include/asm/floppy.h              |  27 ++++---
 arch/mips/include/asm/mach-generic/floppy.h |   8 +-
 arch/mips/include/asm/mach-jazz/floppy.h    |   8 +-
 arch/parisc/include/asm/floppy.h            |  19 ++---
 arch/powerpc/include/asm/floppy.h           |  19 ++---
 arch/sparc/include/asm/floppy_32.h          |  50 ++++++------
 arch/sparc/include/asm/floppy_64.h          |  59 +++++++-------
 arch/x86/include/asm/floppy.h               |  19 ++---
 drivers/block/floppy.c                      | 456 ++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------
 include/uapi/linux/fd.h                     |  26 +++++-
 include/uapi/linux/fdreg.h                  |  16 +++-
 13 files changed, 384 insertions(+), 335 deletions(-)