On Mon, Dec 16, 2024 at 6:25 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > After merging the rust tree, today's linux-next build (x86_64 > allmodconfig) failed like this: Apologies, fixed now, thanks! Jocelyn: we are performing the remapping via the new `ffi` crate in this cycle. I had to add a change to `drm_panic_qr.rs` to take `c_char` instead of `i8` in `drm_panic_qr_generate`, so that types match both before and after the remapping. I think this signature would have been better anyway, but please let me know if you disagree! https://github.com/Rust-for-Linux/linux/commit/e1157aee5f038c2c91af269cd48653133e99f3fb (Diff copied below too) Thanks! Cheers, Miguel [1] diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs index ef2d490965ba..bcf248f69252 100644 --- a/drivers/gpu/drm/drm_panic_qr.rs +++ b/drivers/gpu/drm/drm_panic_qr.rs @@ -931,7 +931,7 @@ fn draw_all(&mut self, data: impl Iterator<Item = u8>) { /// They must remain valid for the duration of the function call. #[no_mangle] pub unsafe extern "C" fn drm_panic_qr_generate( - url: *const i8, + url: *const kernel::ffi::c_char, data: *mut u8, data_len: usize, data_size: usize,