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Everywhere: Switch from (void) to [[maybe_unused]] (#4473)

Problem:
- `(void)` simply casts the expression to void. This is understood to
  indicate that it is ignored, but this is really a compiler trick to
  get the compiler to not generate a warning.

Solution:
- Use the `[[maybe_unused]]` attribute to indicate the value is unused.

Note:
- Functions taking a `(void)` argument list have also been changed to
  `()` because this is not needed and shows up in the same grep
  command.
This commit is contained in:
Lenny Maiorani 2020-12-20 16:09:48 -07:00 committed by GitHub
parent 4421d98e30
commit 765936ebae
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GPG key ID: 4AEE18F83AFDEB23
103 changed files with 219 additions and 362 deletions

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@ -36,15 +36,13 @@ int sched_yield()
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int sched_get_priority_min(int policy)
int sched_get_priority_min([[maybe_unused]] int policy)
{
(void)policy;
return 0; // Idle
}
int sched_get_priority_max(int policy)
int sched_get_priority_max([[maybe_unused]] int policy)
{
(void)policy;
return 3; // High
}