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This mirrors the standard library's alloc::sync::Arc::downcast().
Based on the Rust standard library implementation, ver 1.62.0,
licensed under "Apache-2.0 OR MIT", from:
https://github.com/rust-lang/rust/tree/1.62.0/library/alloc/src
For copyright details, please see:
https://github.com/rust-lang/rust/blob/1.62.0/COPYRIGHT
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Asahi Lina <lina@asahilina.net>
Link: https://lore.kernel.org/r/20230224-rust-arc-v2-1-5c97a865b276@asahilina.net
[ Moved `mod std_vendor;` up. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Modules can (and usually do) have multiple alias tags, in order to
specify multiple possible device matches for autoloading. Allow this by
changing the alias ModuleInfo field to an Option<Vec<String>>.
Note: For normal device IDs this is autogenerated by modpost (which is
not properly integrated with Rust support yet), so it is useful to be
able to manually add device match aliases for now, and should still be
useful in the future for corner cases that modpost does not handle.
This pulls in the expect_group() helper from the rfl/rust branch
(with credit to authors).
Co-developed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Co-developed-by: Finn Behrens <me@kloenk.dev>
Signed-off-by: Finn Behrens <me@kloenk.dev>
Co-developed-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Asahi Lina <lina@asahilina.net>
Link: https://lore.kernel.org/r/20230224-rust-macros-v2-1-7396e8b7018d@asahilina.net
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add some missing fallible methods that we need.
They are all marked as:
#[stable(feature = "kernel", since = "1.0.0")]
for easy identification.
Lina: Extracted from commit 487d7578bd03 ("rust: alloc: add some `try_*`
methods we need") in rust-for-linux/rust.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Asahi Lina <lina@asahilina.net>
Link: https://github.com/Rust-for-Linux/linux/commit/487d7578bd03
Link: https://lore.kernel.org/r/20230224-rust-vec-v1-4-733b5b5a57c5@asahilina.net
[ Match the non-fallible methods from version 1.62.0, since those
in commit 487d7578bd03 were written for 1.54.0-beta.1. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the missing SPDX headers to these modules, which were just imported
from the Rust stdlib. Doing this in a separate commit makes it easier to
audit that the files have not been modified in the original import.
See the preceding two commits for attribution and licensing details.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Link: https://lore.kernel.org/r/20230224-rust-vec-v1-3-733b5b5a57c5@asahilina.net
[ Reworded for typo. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Asahi Lina
Miguel Ojeda