rust: kernel: add blank lines in front of code blocks
Throughout the code base, blank lines are used before starting a code block. Adapt outliers to improve consistency within the kernel crate. Signed-off-by: Valentin Obst <kernel@valentinobst.de> Reviewed-by: Trevor Gross <tmgross@umich.edu> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20240131-doc-fixes-v3-v3-9-0c8af94ed7de@valentinobst.de Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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@ -90,6 +90,7 @@ impl ForeignOwnable for () {
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///
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/// In the example below, we have multiple exit paths and we want to log regardless of which one is
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/// taken:
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///
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/// ```
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/// # use kernel::types::ScopeGuard;
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/// fn example1(arg: bool) {
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@ -108,6 +109,7 @@ impl ForeignOwnable for () {
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///
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/// In the example below, we want to log the same message on all early exits but a different one on
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/// the main exit path:
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///
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/// ```
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/// # use kernel::types::ScopeGuard;
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/// fn example2(arg: bool) {
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@ -129,6 +131,7 @@ impl ForeignOwnable for () {
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///
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/// In the example below, we need a mutable object (the vector) to be accessible within the log
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/// function, so we wrap it in the [`ScopeGuard`]:
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///
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/// ```
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/// # use kernel::types::ScopeGuard;
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/// fn example3(arg: bool) -> Result {
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