Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
rust: uaccess: take advantage of the prelude and `Result`'s defaults
The `kernel` prelude brings `Result` and the error codes; and the prelude
itself is already available in the examples automatically.
In addition, `Result` already defaults to `T = ()`.
Thus simplify.
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250429151445.438977-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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rust/kernel/uaccess.rs
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rust/kernel/uaccess.rs
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///
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/// ```no_run
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/// use kernel::ffi::c_void;
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/// use kernel::error::Result;
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/// use kernel::uaccess::{UserPtr, UserSlice};
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///
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/// fn bytes_add_one(uptr: UserPtr, len: usize) -> Result<()> {
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/// fn bytes_add_one(uptr: UserPtr, len: usize) -> Result {
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/// let (read, mut write) = UserSlice::new(uptr, len).reader_writer();
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///
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/// let mut buf = KVec::new();
···
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///
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/// ```no_run
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/// use kernel::ffi::c_void;
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/// use kernel::error::{code::EINVAL, Result};
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/// use kernel::uaccess::{UserPtr, UserSlice};
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///
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/// /// Returns whether the data in this region is valid.