apply_mips_fdt_fixups(9)

✨ apply_mips_fdt_fixups(9) ✨

okay so bestie, welcome to the kernel API manual for apply_mips_fdt_fixups — yes it's a real function name and yes it's a mouthful, but honestly? it's giving "tiny utility that does one thing well" and I respect it 💅

This page lives in the Kernel API Manual, section 9. Let's get into it 🫶

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🌸 NAME 🌸

apply_mips_fdt_fixups — apply fixups to an FDT blob ✨

🦋 SYNOPSIS 🦋

int apply_mips_fdt_fixups (void *fdt_out , size_t fdt_out_size , const
void *fdt_in , const struct mips_fdt_fixup *fixups );

literally one function, four arguments, no drama 😌

🎀 ARGUMENTS 🎀

• fdt_out — the buffer where the fixed-up FDT gets placed 💖
• fdt_out_size — the size of that fdt_out buffer, so nobody writes off the end (we love a size parameter, no cap)
• fdt_in — the FDT blob itself, the raw material 🦋
• fixups — pointer to an array of fixups that need to be applied, aka the to-do list 🎀

🔥 DESCRIPTION 🔥

So here's the whole vibe: it loops through the array of fixups that fixups points to, and it calls the apply function on each one 💅

It keeps going until one of two things happens:

1. one of those apply functions returns an error 😭 — then we stop
2. we reach the end of the list — and the end is marked by an entry whose apply field is NULL 👑

That's it. That's the whole function. Simple, iconic, does exactly what it says ✨

heads up bestie: that NULL apply field is the actual end-of-list marker, so don't go forgetting it, iykyk 🫶

🌈 RETURN 🌈

zero on success 🎉 — otherwise -errno 💀

⭐ SEE ALSO ⭐

• Kernel file ./arch/mips/include/asm/machine.h
• mips_machine_is_compatible(9)
• struct mips_fdt_fixup(9)

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and that's the page, bestie 🧚 mwah 💜 this came to you courtesy of the source path ./arch/mips/include/asm, dated October 2026, and it's literally gonna live in your brain rent free now 🍓