ubi_dbg_is_bad_hdr(9)

💅 ubi_dbg_is_bad_hdr(9) — like, the Kernel API Manual, bestie ✨

okay so picture this: it's the kernel API manual, it's ubi_dbg_is_bad_hdr(9), and it's here to answer exactly one (1) question for you. ready? slay. 🎀

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🌸 NAME 🌸

ubi_dbg_is_bad_hdr — literally just checking if it is time to emulate a bad header 💀

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✨ SYNOPSIS ✨

bool ubi_dbg_is_bad_hdr (const struct ubi_device *ubi , unsigned int
caller );

that's it. that's the whole signature. no cap. 🫶

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🦋 ARGUMENTS 🦋

• ubi — the UBI device description object, bestie. it's the whole vibe of the device, we love her 👑
• caller — and the manual literally says -- undescribed -- 😭 so yeah, that's all the lore we get. not me being left on read by the docs 🙈

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💖 DESCRIPTION 💖

so here's the tea ☕: this function returns true if a bad header error should be emulated, and otherwise it returns false. that's it. that's the entire plot. simple, iconic, effective. periodt. ✨

like, it's giving "yes or no" main character energy and honestly? obsessed. 💅

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🔥 SEE ALSO 🔥

check out the kernel file ./drivers/mtd/ubi/debug.h (iykyk 👀) and these absolute legends, all in the same friend group:

• ubi_dbg_is_power_cut(9)
• ubi_dbg_is_bitflip(9)
• ubi_dbg_is_write_failure(9)
• ubi_dbg_is_erase_failure(9)
• ubi_dbg_is_eccerr(9)
• ubi_dbg_is_read_failure(9)
• ubi_dbg_is_ff(9)
• ubi_dbg_is_ff_bitflips(9)
• ubi_dbg_is_bad_hdr_ebadmsg(9)
• ubi_dbg_is_bgt_disabled(9)

go read all of them fr fr, it's a whole saga 🌈⭐

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🧚 quick reminder bestie: these are debug helpers, so they're all about pretending things went wrong on purpose. don't @ me if you're confused later — that's the point 💜

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and that's the whole page! brought to you by ./drivers/mtd/ubi, dated October 2026 — mwah, catch you on the next one 💋💖🌸