Merge tag 'bitmap-for-6.15' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:

 - cpumask_next_wrap() rework (me)

 - GENMASK() simplification (I Hsin)

 - rust bindings for cpumasks (Viresh and me)

 - scattered cleanups (Andy, Tamir, Vincent, Ignacio and Joel)

* tag 'bitmap-for-6.15' of https://github.com/norov/linux: (22 commits)
  cpumask: align text in comment
  riscv: fix test_and_{set,clear}_bit ordering documentation
  treewide: fix typo 'unsigned __init128' -> 'unsigned __int128'
  MAINTAINERS: add rust bindings entry for bitmap API
  rust: Add cpumask helpers
  uapi: Revert "bitops: avoid integer overflow in GENMASK(_ULL)"
  cpumask: drop cpumask_next_wrap_old()
  PCI: hv: Switch hv_compose_multi_msi_req_get_cpu() to using cpumask_next_wrap()
  scsi: lpfc: rework lpfc_next_{online,present}_cpu()
  scsi: lpfc: switch lpfc_irq_rebalance() to using cpumask_next_wrap()
  s390: switch stop_machine_yield() to using cpumask_next_wrap()
  padata: switch padata_find_next() to using cpumask_next_wrap()
  cpumask: use cpumask_next_wrap() where appropriate
  cpumask: re-introduce cpumask_next{,_and}_wrap()
  cpumask: deprecate cpumask_next_wrap()
  powerpc/xmon: simplify xmon_batch_next_cpu()
  ibmvnic: simplify ibmvnic_set_queue_affinity()
  virtio_net: simplify virtnet_set_affinity()
  objpool: rework objpool_pop()
  cpumask: add for_each_{possible,online}_cpu_wrap
  ...

include/uapi/linux/bits.h

@@ -4,13 +4,9 @@
 #ifndef _UAPI_LINUX_BITS_H
 #define _UAPI_LINUX_BITS_H
 
-#define __GENMASK(h, l) \
-        (((~_UL(0)) - (_UL(1) << (l)) + 1) & \
-         (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
+#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h))))
 
-#define __GENMASK_ULL(h, l) \
-        (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & \
-         (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
+#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h))))
 
 #define __GENMASK_U128(h, l) \
 	((_BIT128((h)) << 1) - (_BIT128(l)))

include/uapi/linux/const.h

@@ -33,7 +33,7 @@
  * Missing asm support
  *
  * __BIT128() would not work in the asm code, as it shifts an
- * 'unsigned __init128' data type as direct representation of
+ * 'unsigned __int128' data type as direct representation of
  * 128 bit constants is not supported in the gcc compiler, as
  * they get silently truncated.
  *