rust: print: avoid evaluating arguments in `pr_*` macros in `unsafe` blocks

At the moment it is possible to perform unsafe operations in
the arguments of `pr_*` macros since they are evaluated inside
an `unsafe` block:

    let x = &10u32 as *const u32;
    pr_info!("{}", *x);

In other words, this is a soundness issue.

Fix it so that it requires an explicit `unsafe` block.

Reported-by: Wedson Almeida Filho <[email protected]>
Reported-by: Domen Puncer Kugler <[email protected]>
Link: https://github.com/Rust-for-Linux/linux/issues/479
Signed-off-by: Miguel Ojeda <[email protected]>
Reviewed-by: Boqun Feng <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Reviewed-by: Björn Roy Baron <[email protected]>
Reviewed-by: Vincenzo Palazzo <[email protected]>

0 files changed, 0 insertions, 0 deletions