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Printk improvements #300

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Printk improvements #300

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93524a1
rust: printk refactor
nbdd0121 May 17, 2021
6a1bd01
rust: add `LogTarget` to print.rs
nbdd0121 May 26, 2021
7f936e8
rust: add empty `__LOG_PREFIX` to the prelude
nbdd0121 Jun 7, 2021
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2 changes: 1 addition & 1 deletion rust/kernel/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,7 @@ pub use crate::types::{Mode, ScopeGuard};
pub const PAGE_SIZE: usize = 1 << bindings::PAGE_SHIFT;

/// Prefix to appear before log messages printed from within the kernel crate.
const __LOG_PREFIX: &[u8] = b"rust_kernel\0";
const __LOG_PREFIX: &str::CStr = c_str!("rust_kernel");

/// The top level entrypoint to implementing a kernel module.
///
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4 changes: 4 additions & 0 deletions rust/kernel/prelude.rs
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Expand Up @@ -26,3 +26,7 @@ pub use super::static_assert;
pub use super::{Error, KernelModule, Result};

pub use crate::traits::TryPin;

// Default log prefix to none so crates without `module!` can use printk macros.
#[doc(hidden)]
pub const __LOG_PREFIX: () = ();
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