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linux/rust/helpers/err.c
Gary Guo e26fa54604 rust: kbuild: auto generate helper exports
This removes the need to explicitly export all symbols.

Generate helper exports similarly to what's currently done for Rust
crates. These helpers are exclusively called from within Rust code and
therefore can be treated similar as other Rust symbols.

Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20240817165302.3852499-1-gary@garyguo.net
[ Fixed dependency path, reworded slightly, edited comment a bit and
  rebased on top of the changes made when applying Andreas' patch
  (e.g. no `README.md` anymore, so moved the edits).  - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-08-19 11:09:02 +02:00

20 lines
309 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/err.h>
#include <linux/export.h>
__force void *rust_helper_ERR_PTR(long err)
{
return ERR_PTR(err);
}
bool rust_helper_IS_ERR(__force const void *ptr)
{
return IS_ERR(ptr);
}
long rust_helper_PTR_ERR(__force const void *ptr)
{
return PTR_ERR(ptr);
}