Merge tag 'bitmap-for-v7.1' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:

 - new API: bitmap_weight_from() and bitmap_weighted_xor() (Yury)

 - drop unused __find_nth_andnot_bit() (Yury)

 - new tests and test improvements (Andy, Akinobu, Yury)

 - fixes for count_zeroes API (Yury)

 - cleanup bitmap_print_to_pagebuf() mess (Yury)

 - documentation updates (Andy, Kai, Kit).

* tag 'bitmap-for-v7.1' of https://github.com/norov/linux: (24 commits)
  bitops: Update kernel-doc for sign_extendXX()
  powerpc/xive: simplify xive_spapr_debug_show()
  thermal: intel: switch cpumask_get() to using cpumask_print_to_pagebuf()
  coresight: don't use bitmap_print_to_pagebuf()
  lib/prime_numbers: drop temporary buffer in dump_primes()
  drm/xe: switch xe_pagefault_queue_init() to using bitmap_weighted_or()
  ice: use bitmap_empty() in ice_vf_has_no_qs_ena
  ice: use bitmap_weighted_xor() in ice_find_free_recp_res_idx()
  bitmap: introduce bitmap_weighted_xor()
  bitmap: add test_zero_nbits()
  bitmap: exclude nbits == 0 cases from bitmap test
  bitmap: test bitmap_weight() for more
  asm-generic/bitops: Fix a comment typo in instrumented-atomic.h
  bitops: fix kernel-doc parameter name for parity8()
  lib: count_zeros: unify count_{leading,trailing}_zeros()
  lib: count_zeros: fix 32/64-bit inconsistency in count_trailing_zeros()
  lib: crypto: fix comments for count_leading_zeros()
  x86/topology: use bitmap_weight_from()
  bitmap: add bitmap_weight_from()
  lib/find_bit_benchmark: avoid clearing randomly filled bitmap in test_find_first_bit()
  ...

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 9dc526507875..b9bfa157e095 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -69,6 +69,7 @@ bool __bitmap_or_equal(const unsigned long *bitmap1,
 	tmp = (bitmap1[k] | bitmap2[k]) ^ bitmap3[k];
 	return (tmp & BITMAP_LAST_WORD_MASK(bits)) == 0;
 }
+EXPORT_SYMBOL(__bitmap_or_equal);
 
 void __bitmap_complement(unsigned long *dst, const unsigned long *src, unsigned int bits)
 {
@@ -360,6 +361,14 @@ unsigned int __bitmap_weighted_or(unsigned long *dst, const unsigned long *bitma
 {
 	return BITMAP_WEIGHT(({dst[idx] = bitmap1[idx] | bitmap2[idx]; dst[idx]; }), bits);
 }
+EXPORT_SYMBOL(__bitmap_weighted_or);
+
+unsigned int __bitmap_weighted_xor(unsigned long *dst, const unsigned long *bitmap1,
+				  const unsigned long *bitmap2, unsigned int bits)
+{
+	return BITMAP_WEIGHT(({dst[idx] = bitmap1[idx] ^ bitmap2[idx]; dst[idx]; }), bits);
+}
+EXPORT_SYMBOL(__bitmap_weighted_xor);
 
 void __bitmap_set(unsigned long *map, unsigned int start, int len)
 {