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@nbdd0121 nbdd0121 commented Nov 2, 2023

Partial fix to https://lore.kernel.org/rust-for-linux/Y8Ax%2FI5qOcVDZljG@zn.tnic/ (not a full fix, because if short below is replaced with a int then the code still fails to compile)

Currently binding for code like this wouldn't compile:

struct outer {
    struct {
        short a: 16;
        short b: 16;
    };
} __attribute__((packed));

because bindgen sticks an extra #[repr(align(2))] on the inner struct.

This extra alignment is not necessary and can be removed. The removed NB line in this PR is no longer relevant because of the addition _bitfield_align field generated starting in #1950.

Reopen of #2388

@emilio emilio merged commit be197f3 into rust-lang:main Dec 11, 2023
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2 participants