[PATCH 00/12] cleanup bitmaps printing in sysfs

[Yury Norov <ynorov@nvidia.com>]

Bitmap API has a bitmap_print_to_pagebuf() function that is intended to
print bitmap into a human readable format, making sure that the output
string will not get big enough to cross the current page limit.

Some drivers use this function immediately before passing the result to
seq_printf() with no modification. This is useless because seq_pritf()
takes care of not overflowing the buffer by itself, and perfectly prints
bitmaps with "%*pb[l]".

The first 6 patches of the series convert such bitmap_print_to_pagebuf()
users to just print the bitmap with seq_printf().

Patch #7 adds (actually moves from net/p9 driver) a handy macro
rest_of_page() and applies it globally.

The rest of the series switches all other users to scnprintf("%*pb[l]"),
so that users wont abuse kmalloc() + bitmap_print_to_pagebuf().

Patches 1-6 may be applied individually, or together with the rest of
the series, at maintainers' discretion.

Yury Norov (12):
  powerpc/xive: simplify xive_spapr_debug_show()
  octeontx2-af: siplify rvu_debugfs
  thermal: intel: switch cpumask_get() to using
    cpumask_print_to_pagebuf()
  lib/prime_numbers: drop temporary buffer in dump_primes()
  bitmap: switch test to scnprintf("%*pbl")
  bitmap: align test_bitmap output
  mm: add rest_of_page() macro
  coresight: don't use bitmap_print_to_pagebuf()
  fpga: m10bmc-sec: switch show_canceled_csk() to using scnprintf()
  net-sysfs: switch xps_queue_show() to using scnprintf()
  cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()
  bitmap: drop bitmap_print_to_pagebuf()

 arch/arm64/kernel/patching.c                  |  4 +-
 arch/powerpc/lib/code-patching.c              |  6 +--
 arch/powerpc/sysdev/xive/spapr.c              | 12 +-----
 arch/riscv/kernel/sbi.c                       |  4 +-
 arch/s390/kvm/gaccess.c                       |  6 +--
 arch/x86/kvm/emulate.c                        |  4 +-
 drivers/block/null_blk/main.c                 |  6 +--
 drivers/fpga/intel-m10-bmc-sec-update.c       |  3 +-
 drivers/gpu/drm/i915/gt/shmem_utils.c         |  5 +--
 .../hwtracing/coresight/coresight-cti-sysfs.c | 33 +++++++--------
 drivers/md/dm-pcache/backing_dev.h            |  2 +-
 .../marvell/octeontx2/af/rvu_debugfs.c        | 28 +++----------
 drivers/net/ethernet/meta/fbnic/fbnic_tlv.c   |  6 +--
 drivers/s390/net/qeth_core_main.c             |  6 +--
 drivers/spi/spi-pl022.c                       |  3 +-
 drivers/spi/spi.c                             |  4 +-
 drivers/thermal/intel/intel_powerclamp.c      |  3 +-
 fs/ext4/verity.c                              |  3 +-
 fs/f2fs/verity.c                              |  6 +--
 fs/fuse/dev.c                                 |  4 +-
 fs/iomap/buffered-io.c                        |  2 +-
 fs/nfs/pagelist.c                             |  2 +-
 fs/remap_range.c                              |  3 +-
 fs/xfs/scrub/xfile.c                          |  3 +-
 include/crypto/scatterwalk.h                  |  2 +-
 include/linux/bitmap-str.h                    |  1 -
 include/linux/cpumask.h                       | 17 +-------
 include/linux/highmem.h                       | 24 +++++------
 include/linux/iomap.h                         |  2 +-
 include/linux/iov_iter.h                      |  3 +-
 include/linux/mm.h                            |  2 +
 kernel/events/ring_buffer.c                   |  2 +-
 lib/bitmap-str.c                              | 42 +++----------------
 lib/cpumask.c                                 | 17 ++++++++
 lib/iov_iter.c                                |  5 +--
 lib/math/tests/prime_numbers_kunit.c          |  6 +--
 lib/test_bitmap.c                             | 17 ++++----
 net/9p/trans_virtio.c                         |  6 ---
 net/core/net-sysfs.c                          |  2 +-
 sound/virtio/virtio_pcm_msg.c                 |  4 +-
 40 files changed, 111 insertions(+), 199 deletions(-)

-- 
2.43.0