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lib/cpumask: change return types to unsigned where appropriate

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Switch return types to unsigned int where return values cannot be negative.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
This commit is contained in:
Yury Norov 2022-07-01 05:54:27 -07:00
parent cb32c285cc
commit 8b6b795d9b
2 changed files with 16 additions and 16 deletions
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14
include/linux/cpumask.h
View File

@ -176,12 +176,12 @@ static inline unsigned int cpumask_local_spread(unsigned int i, int node)
return 0;
}
static inline int cpumask_any_and_distribute(const struct cpumask *src1p,
static inline unsigned int cpumask_any_and_distribute(const struct cpumask *src1p,
const struct cpumask *src2p) {
return cpumask_first_and(src1p, src2p);
}
static inline int cpumask_any_distribute(const struct cpumask *srcp)
static inline unsigned int cpumask_any_distribute(const struct cpumask *srcp)
{
return cpumask_first(srcp);
}
@ -258,12 +258,12 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
}
int __pure cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
int __pure cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
unsigned int __pure cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
unsigned int __pure cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
unsigned int cpumask_local_spread(unsigned int i, int node);
int cpumask_any_and_distribute(const struct cpumask *src1p,
unsigned int cpumask_any_and_distribute(const struct cpumask *src1p,
const struct cpumask *src2p);
int cpumask_any_distribute(const struct cpumask *srcp);
unsigned int cpumask_any_distribute(const struct cpumask *srcp);
/**
* for_each_cpu - iterate over every cpu in a mask
@ -289,7 +289,7 @@ int cpumask_any_distribute(const struct cpumask *srcp);
(cpu) = cpumask_next_zero((cpu), (mask)), \
(cpu) < nr_cpu_ids;)
extern int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap);
unsigned int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap);
/**
* for_each_cpu_wrap - iterate over every cpu in a mask, starting at a specified location

18
lib/cpumask.c
View File

@ -31,7 +31,7 @@ EXPORT_SYMBOL(cpumask_next);
*
* Returns >= nr_cpu_ids if no further cpus set in both.
*/
int cpumask_next_and(int n, const struct cpumask *src1p,
unsigned int cpumask_next_and(int n, const struct cpumask *src1p,
const struct cpumask *src2p)
{
/* -1 is a legal arg here. */
@ -50,7 +50,7 @@ EXPORT_SYMBOL(cpumask_next_and);
* Often used to find any cpu but smp_processor_id() in a mask.
* Returns >= nr_cpu_ids if no cpus set.
*/
int cpumask_any_but(const struct cpumask *mask, unsigned int cpu)
unsigned int cpumask_any_but(const struct cpumask *mask, unsigned int cpu)
{
unsigned int i;
@ -74,9 +74,9 @@ EXPORT_SYMBOL(cpumask_any_but);
* Note: the @wrap argument is required for the start condition when
* we cannot assume @start is set in @mask.
*/
int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap)
unsigned int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap)
{
int next;
unsigned int next;
again:
next = cpumask_next(n, mask);
@ -205,7 +205,7 @@ void __init free_bootmem_cpumask_var(cpumask_var_t mask)
*/
unsigned int cpumask_local_spread(unsigned int i, int node)
{
int cpu;
unsigned int cpu;
/* Wrap: we always want a cpu. */
i %= num_online_cpus();
@ -243,10 +243,10 @@ static DEFINE_PER_CPU(int, distribute_cpu_mask_prev);
*
* Returns >= nr_cpu_ids if the intersection is empty.
*/
int cpumask_any_and_distribute(const struct cpumask *src1p,
unsigned int cpumask_any_and_distribute(const struct cpumask *src1p,
const struct cpumask *src2p)
{
int next, prev;
unsigned int next, prev;
/* NOTE: our first selection will skip 0. */
prev = __this_cpu_read(distribute_cpu_mask_prev);
@ -262,9 +262,9 @@ int cpumask_any_and_distribute(const struct cpumask *src1p,
}
EXPORT_SYMBOL(cpumask_any_and_distribute);
int cpumask_any_distribute(const struct cpumask *srcp)
unsigned int cpumask_any_distribute(const struct cpumask *srcp)
{
int next, prev;
unsigned int next, prev;
/* NOTE: our first selection will skip 0. */
prev = __this_cpu_read(distribute_cpu_mask_prev);