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Fix doctest of `Devres` which still used `writeb` instead of `write8`.
Fixes: 354fd6e86fac ("rust: io: rename `io::Io` accessors")
Signed-off-by: Fiona Behrens <me@kloenk.dev>
Link: https://lore.kernel.org/r/20250224-rust-iowrite-read8-fix-v1-1-c6abee346897@kloenk.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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So far `DevresInner` is kept alive, even if `Devres` is dropped until
the devres callback is executed to avoid a WARN() when the action has
been released already.
With the introduction of devm_remove_action_nowarn() we can remove the
action in `Devres::drop`, handle the case where the action has been
released already and hence also free `DevresInner`.
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250107122609.8135-2-dakr@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a Rust abstraction for the kernel's devres (device resource
management) implementation.
The Devres type acts as a container to manage the lifetime and
accessibility of device bound resources. Therefore it registers a
devres callback and revokes access to the resource on invocation.
Users of the Devres abstraction can simply free the corresponding
resources in their Drop implementation, which is invoked when either the
Devres instance goes out of scope or the devres callback leads to the
resource being revoked, which implies a call to drop_in_place().
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://lore.kernel.org/r/20241219170425.12036-9-dakr@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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