add_marker_len(9)

💅 add_marker_len(9) — like, the Kernel API Manual era 🎀

okay so bestie, welcome to add_marker_len(9) — yes that's the manual name, we're in the Kernel API Manual, and this little function is out here doing exactly one (1) job and honestly? iconic for that. 🦋

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✨ NAME ✨

add_marker_len — compute the length of the marker in data area 🌸

like, the marker. in the data area. the length of it. that's the whole vibe. 💅

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🫶 SYNOPSIS 🫶

u32 add_marker_len (struct nand_bbt_descr *td );

that's it. one arg. one return. no cap. ✨

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🎀 ARGUMENTS 🎀

• td — the BBT descriptor used for computation 💖 — yes it's a struct nand_bbt_descr *, it's the thing doing the computing, she's the main character here fr fr.

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👑 DESCRIPTION 👑

The length will be 0 if the marker is located in OOB area. ⭐

that's literally the whole description, bestie — the marker lives in OOB? boom, 0. zero. nothing. the way that length just ✨vanishes✨. iykyk 😭

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🌈 SEE ALSO 🌈

Kernel file ./drivers/mtd/nand/raw/nand_bbt.c — go read the source, it's giving lore 🧚

• check_pattern(9)
• check_short_pattern(9)
• read_bbt(9)
• read_abs_bbt(9)
• scan_read_oob(9)
• read_abs_bbts(9)
• create_bbt(9)
• search_bbt(9)
• search_read_bbts(9)
• get_bbt_block(9)
• mark_bbt_block_bad(9)
• write_bbt(9)
• nand_memory_bbt(9)
• check_create(9)
• nand_update_bbt(9)
• mark_bbt_region(9)
• verify_bbt_descr(9)
• nand_scan_bbt(9)
• nand_create_badblock_pattern(9)
• nand_create_bbt(9)
• nand_isreserved_bbt(9)
• nand_isbad_bbt(9)
• nand_markbad_bbt(9)

that's the whole friend group right there, and every single one of them is invited to the group chat 💀🔥

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💖 cute sign-off time: this page lives in ./drivers/mtd/nand/raw, and it's dated October 2026 — mark your calendars bestie, add_marker_len(9) said see you then 🗓️🫶 slay.