DEFINE_INTER..._HANDLER_RET(9)

💅 DEFINE_INTER..._HANDLER_RET(9) 💅

okay so bestie, we're in the Kernel API Manual today and this one is a whole macro moment. buckle up 🎀

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✨ NAME ✨

DEFINE_INTERRUPT_HANDLER_RET — the macro that defines you a synchronous interrupt handler function. that's it, that's the vibe 🫶

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🌸 SYNOPSIS 🌸

DEFINE_INTERRUPT_HANDLER_RET (func );

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🦋 ARGUMENTS 🦋

• func — the function name of the entry point. literally just the name you want your new handler function to have, no cap ✨

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💜 RETURN 💜

returns a value back to the asm caller. yes bestie, it actually gives something back — it's giving main character energy 🔥

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🧚 DESCRIPTION 🧚

so here's the tea 💅 — func gets called from the ASM entry code. that's who's sliding into its DMs.

the macro is written so it acts as a function definition. so you append the body with a pair of curly brackets { } and you're done. iconic behavior honestly 🎀

ngl, tiny macro, huge responsibility — it's defining a real function over there 🫶

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🌈 SEE ALSO 🌈

kernel file ./arch/powerpc/include/asm/interrupt.h 👑

• DECLARE_INTERRUPT_HANDLER_RAW(9)
• DEFINE_INTERRUPT_HANDLER_RAW(9)
• DECLARE_INTERRUPT_HANDLER(9)
• DEFINE_INTERRUPT_HANDLER(9)
• DECLARE_INTERRUPT_HANDLER_RET(9)
• DECLARE_INTERRUPT_HANDLER_ASYNC(9)
• DEFINE_INTERRUPT_HANDLER_ASYNC(9)
• DECLARE_INTERRUPT_HANDLER_NMI(9)
• DEFINE_INTERRUPT_HANDLER_NMI(9)

like the whole interrupt handler family tree, we love a supportive ensemble cast ⭐

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aaaand that's the page babes 💖 this came straight out of ./arch/powerpc/include/asm and it's dated October 2026 — go off, powerpc, periodt 💅🌸