rust: finish using custom FFI integer types

commit 27c7518e7f1ccaaa43eb5f25dc362779d2dc2ccb upstream.

In the last kernel cycle we migrated most of the `core::ffi` cases in
commit d072acda4862 ("rust: use custom FFI integer types"):

    Currently FFI integer types are defined in libcore. This commit
    creates the `ffi` crate and asks bindgen to use that crate for FFI
    integer types instead of `core::ffi`.

    This commit is preparatory and no type changes are made in this
    commit yet.

Finish now the few remaining/new cases so that we perform the actual
remapping in the next commit as planned.

Acked-by: Jocelyn Falempe <jfalempe@redhat.com> # drm
Link: https://lore.kernel.org/rust-for-linux/CANiq72m_rg42SvZK=bF2f0yEoBLVA33UBhiAsv8THhVu=G2dPA@mail.gmail.com/
Link: https://lore.kernel.org/all/cc9253fa-9d5f-460b-9841-94948fb6580c@redhat.com/
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs
index ef2d490965ba20ffe20dda1cc064df6956fa9d05..bcf248f69252c2d8c0ec2aeb6e4826f2a97247b7 100644 (file)
--- a/drivers/gpu/drm/drm_panic_qr.rs
+++ b/drivers/gpu/drm/drm_panic_qr.rs
@@ -931,7 +931,7 @@ impl QrImage<'_> {
 /// 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,