struct_group_attr(9)

💖 struct_group_attr 💖

okay so bestie, welcome to the Kernel API Manual page for struct_group_attr — yes, this is a real man page from the kernel docs, and yes, it's lowkey iconic 🎀

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✨ NAME ✨

struct_group_attr — the one that creates a struct_group() with trailing attributes 🦋

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✨ SYNOPSIS ✨

struct_group_attr (NAME , ATTRS , MEMBERS... );

like that's the whole vibe. no cap, that's the signature, don't touch it 💅

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✨ ARGUMENTS ✨

• NAME — the identifier name of the mirrored sub-struct. basically the name tag for the named twin 🏷️
• ATTRS — any struct attributes you wanna apply. this is the part that earns the _attr in the name, periodt ✨
• MEMBERS — the member declarations for the mirrored structs. the actual contents, the main character energy of the whole thing 👑

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✨ DESCRIPTION ✨

so here's the tea ☕ — this is used to create an anonymous union of two structs with identical layout and size: one anonymous and one named.

the former (the anonymous one) can be used normally without sub-struct naming — just vibes, no prefix needed. and the latter (the named one) can be used to reason about the start, end, and size of the group of struct members 🫶

and the whole point of this specific one: it includes structure attributes argument — that's the ATTRS bit, that's the flex 💅✨

ngl this is the struct_group()-but-with-attributes variant, so if you don't need attributes, go hang with the plain one instead 🧚

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✨ SEE ALSO ✨

• kernel file ./include/linux/stddef.h — the home base for all this 🏠
• sizeof_field(9)
• offsetofend(9)
• struct_group(9)
• struct_group_tagged(9)
• DECLARE_FLEX_ARRAY(9)
• __TRAILING_OVERLAP(9)
• TRAILING_OVERLAP(9)

like, the whole friend group fr fr 🌸

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and that's the page!! much love from ./include/linux, dated October 2026, brought to you by the kernel docs gang — slay, study up, and go read stddef.h bestie 💜🎀🦋