mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-04 08:33:27 +01:00
Alexandre Courbot
b345c917d7
There are a few cases where we need the lowercase name of a given chipset, notably to resolve firmware files paths for dynamic loading or to build the module information. So far, we relied on a static `NAMES` array for the latter, and some CString hackery for the former. Replace both with a new `name` const method that returns the lowercase name of a chipset instance. We can generate it using the `paste!` macro. Using this method removes the need to create a `CString` when loading firmware, and lets us remove a couple of utility functions that now have no user. Acked-by: Danilo Krummrich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexandre Courbot <[email protected]>
28 lines
844 B
Rust
28 lines
844 B
Rust
// SPDX-License-Identifier: GPL-2.0
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use kernel::prelude::*;
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use kernel::time::{Delta, Instant, Monotonic};
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/// Wait until `cond` is true or `timeout` elapsed.
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///
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/// When `cond` evaluates to `Some`, its return value is returned.
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///
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/// `Err(ETIMEDOUT)` is returned if `timeout` has been reached without `cond` evaluating to
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/// `Some`.
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///
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/// TODO[DLAY]: replace with `read_poll_timeout` once it is available.
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/// (https://lore.kernel.org/lkml/[email protected]/)
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pub(crate) fn wait_on<R, F: Fn() -> Option<R>>(timeout: Delta, cond: F) -> Result<R> {
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let start_time = Instant::<Monotonic>::now();
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loop {
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if let Some(ret) = cond() {
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return Ok(ret);
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}
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if start_time.elapsed().as_nanos() > timeout.as_nanos() {
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return Err(ETIMEDOUT);
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}
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}
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}
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