REPEAT_BYTE_U32(9)

✨ REPEAT_BYTE_U32(9) ✨

okay so bestie, welcome to the Kernel API Manual, section 9 — this is the REPEAT_BYTE_U32 page and it's literally so tiny you could read it in a group chat between classes 💅

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🌸 NAME 🌸

REPEAT_BYTE_U32 — repeat the value @x multiple times as a u32 value 🎀

Like, it takes one little byte-ish value and smears it across a whole 32-bit word. Copy-paste energy but for bits, iykyk ✨

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🦋 SYNOPSIS 🦋

REPEAT_BYTE_U32 (x );

That's the whole vibe. One argument. No drama. No cap 🫶

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💖 ARGUMENTS 💖

• x — the value to repeat 🔁 like, this is the thing getting duplicated, okay?

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⚠️ NOTE ⚠️

bestie. listen. 👑 x is not checked for > 0xff — so any value larger than 0xff will produce odd results. Not "quirky results", not "fun surprises" — odd results. So maybe don't do that unless you enjoy chaos 💀

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🌈 SEE ALSO 🌈

• Kernel file — ./tools/testing/selftests/powerpc/primitives/linux/wordpart.h 🗂️
• upper_32_bits(9)
• lower_32_bits(9)
• upper_16_bits(9)
• lower_16_bits(9)
• REPEAT_BYTE(9)

go read those too, they're giving the same friend-group energy fr fr 🧚

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so yeah, that's the whole page 🎀 this gem lives in ./tools/testing/selftests/powe... (yes the path is literally truncated like that in the footer, we don't gatekeep), dated October 2026, and it's from the Kernel API Manual, section 9 — mwah, slay, periodt 💜