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bitmap updates for v6.20

Browse source 
- more rust helpers (Alice);
  - more bitops tests (Ryota);
  - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun);
  - random cleanups (Andy, H. Peter).
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Merge tag 'bitmap-for-6.20' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:

 - more rust helpers (Alice)

 - more bitops tests (Ryota)

 - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun)

 - random cleanups (Andy, H. Peter)

* tag 'bitmap-for-6.20' of https://github.com/norov/linux:
  lib/tests: extend KUnit test for bitops with more cases
  bitops: Add more files to the MAINTAINERS
  lib/find_bit: fix uninitialized variable use in FIND_NTH_BIT
  lib/tests: add KUnit test for bitops
  rust: cpumask: add __rust_helper to helpers
  rust: bitops: add __rust_helper to helpers
  rust: bitmap: add __rust_helper to helpers
  linux/bitfield.h: replace __auto_type with auto
This commit is contained in:
Linus Torvalds 2026-02-10 11:39:45 -08:00
commit f144367d01
9 changed files with 243 additions and 3 deletions
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1
rust/helpers/bitmap.c
View file

@ -2,6 +2,7 @@
#include <linux/bitmap.h>
__rust_helper
void rust_helper_bitmap_copy_and_extend(unsigned long *to, const unsigned long *from,
unsigned int count, unsigned int size)
{

4
rust/helpers/bitops.c
View file

@ -3,21 +3,25 @@
#include <linux/bitops.h>
#include <linux/find.h>
__rust_helper
void rust_helper___set_bit(unsigned long nr, unsigned long *addr)
{
__set_bit(nr, addr);
}
__rust_helper
void rust_helper___clear_bit(unsigned long nr, unsigned long *addr)
{
__clear_bit(nr, addr);
}
__rust_helper
void rust_helper_set_bit(unsigned long nr, volatile unsigned long *addr)
{
set_bit(nr, addr);
}
__rust_helper
void rust_helper_clear_bit(unsigned long nr, volatile unsigned long *addr)
{
clear_bit(nr, addr);

13
rust/helpers/cpumask.c
View file

@ -2,67 +2,80 @@
#include <linux/cpumask.h>
__rust_helper
void rust_helper_cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
{
cpumask_set_cpu(cpu, dstp);
}
__rust_helper
void rust_helper___cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
{
__cpumask_set_cpu(cpu, dstp);
}
__rust_helper
void rust_helper_cpumask_clear_cpu(int cpu, struct cpumask *dstp)
{
cpumask_clear_cpu(cpu, dstp);
}
__rust_helper
void rust_helper___cpumask_clear_cpu(int cpu, struct cpumask *dstp)
{
__cpumask_clear_cpu(cpu, dstp);
}
__rust_helper
bool rust_helper_cpumask_test_cpu(int cpu, struct cpumask *srcp)
{
return cpumask_test_cpu(cpu, srcp);
}
__rust_helper
void rust_helper_cpumask_setall(struct cpumask *dstp)
{
cpumask_setall(dstp);
}
__rust_helper
bool rust_helper_cpumask_empty(struct cpumask *srcp)
{
return cpumask_empty(srcp);
}
__rust_helper
bool rust_helper_cpumask_full(struct cpumask *srcp)
{
return cpumask_full(srcp);
}
__rust_helper
unsigned int rust_helper_cpumask_weight(struct cpumask *srcp)
{
return cpumask_weight(srcp);
}
__rust_helper
void rust_helper_cpumask_copy(struct cpumask *dstp, const struct cpumask *srcp)
{
cpumask_copy(dstp, srcp);
}
__rust_helper
bool rust_helper_alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
{
return alloc_cpumask_var(mask, flags);
}
__rust_helper
bool rust_helper_zalloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
{
return zalloc_cpumask_var(mask, flags);
}
#ifndef CONFIG_CPUMASK_OFFSTACK
__rust_helper
void rust_helper_free_cpumask_var(cpumask_var_t mask)
{
free_cpumask_var(mask);