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| author | Jan Polensky <japo@linux.ibm.com> | 2026-06-01 19:46:22 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2026-06-10 16:25:13 +0200 |
| commit | fc1118cdc3618bef1433040bf5fa09b438ec3428 (patch) | |
| tree | 6b9f4400a9e17911d6f94fd3932311d0fe6d72ad | |
| parent | 6900bec59d0f54dbb94d0799d204bcd44fbdb623 (diff) | |
rust/bindgen_parameters: Mark s390 types as opaque to prevent repr conflicts
Bindgen attempts to generate Rust layouts for a number of s390 structs
that are packed but contain, or transitively contain, aligned fields.
Rust rejects such layouts with E0588 ("packed type cannot transitively
contain a #[repr(align)] type").
Add the affected s390 types to the opaque type list so bindgen emits
opaque blob types instead of full representations. This matches existing
workarounds for x86 types such as alt_instr and x86_msi_data.
Link: https://lore.kernel.org/all/e5c7aa10-590d-0d20-dd3b-385bee2377e7@intel.com/
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
| -rw-r--r-- | rust/bindgen_parameters | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/rust/bindgen_parameters b/rust/bindgen_parameters index 6f02d9720ad2..8402b0c93545 100644 --- a/rust/bindgen_parameters +++ b/rust/bindgen_parameters @@ -14,6 +14,13 @@ --opaque-type alt_instr --opaque-type x86_msi_data --opaque-type x86_msi_addr_lo +# s390-only: same packed/align issue as above (E0588). +--opaque-type lowcore +--opaque-type tod_clock +--opaque-type tpi_info +--opaque-type uv_cb.* +--opaque-type uv_secret.* +--opaque-type zpci_fib # If SMP is disabled, `arch_spinlock_t` is defined as a ZST which triggers a Rust # warning. We don't need to peek into it anyway. |