onenand_block_isbad(9)

okay bestie, this is onenand_block_isbad(9) from the Kernel API Manual 💖 the whole page is about one tiny but important vibe check: is this block bad or not? no cap.

✨ NAME ✨

onenand_block_isbad — [MTD Interface] Check whether the block at the given offset is bad. that's literally the name-line, bestie 🎀

🌸 SYNOPSIS 🌸

here's the signature, character for character, don't come for me:

int onenand_block_isbad (struct mtd_info *mtd , loff_t ofs );

🎀 ARGUMENTS 🎀

two arguments, both iconic:

• mtd — MTD device structure. the device in question, fr fr.
• ofs — offset relative to mtd start. that's where we're checking, iykyk.

💅 DESCRIPTION 💅

Check whether the block is bad. that's it. that's the function's whole main-character job: check whether the block is bad 💀 no extra plot twists on this page.

🦋 SEE ALSO 🦋

Kernel file ./drivers/mtd/nand/onenand/onenand_base.c — and the SEE ALSO crew is long, so buckle up 🎢

• onenand_readw(9)
• onenand_writew(9)
• onenand_block_address(9)
• onenand_bufferram_address(9)
• onenand_page_address(9)
• onenand_buffer_address(9)
• flexonenand_block(9)
• flexonenand_addr(9)
• onenand_get_density(9)
• flexonenand_region(9)
• onenand_command(9)
• onenand_read_ecc(9)
• onenand_wait(9)
• onenand_bufferram_offset(9)
• onenand_read_bufferram(9)
• onenand_sync_read_bufferram(9)
• onenand_write_bufferram(9)
• onenand_get_2x_blockpage(9)
• onenand_check_bufferram(9)
• onenand_update_bufferram(9)
• onenand_invalidate_bufferram(9)
• onenand_get_device(9)
• onenand_release_device(9)
• onenand_transfer_auto_oob(9)
• onenand_recover_lsb(9)
• onenand_mlc_read_ops_nolock(9)
• onenand_read_ops_nolock(9)
• onenand_read_oob_nolock(9)
• onenand_read_oob(9)
• onenand_bbt_wait(9)
• onenand_bbt_read_oob(9)
• onenand_verify_oob(9)
• onenand_verify(9)
• onenand_panic_write(9)
• onenand_fill_auto_oob(9)
• onenand_write_ops_nolock(9)
• onenand_write_oob_nolock(9)
• onenand_write_oob(9)
• onenand_block_isbad_nolock(9)
• onenand_multiblock_erase(9)
• onenand_block_by_block_erase(9)
• onenand_erase(9)
• onenand_sync(9)
• onenand_default_block_markbad(9)
• onenand_block_markbad(9)
• onenand_do_lock_cmd(9)
• onenand_lock(9)
• onenand_unlock(9)
• onenand_check_lock_status(9)
• onenand_unlock_all(9)
• onenand_otp_command(9)
• onenand_otp_write_oob_nolock(9)
• do_otp_read(9)
• do_otp_write(9)
• do_otp_lock(9)
• onenand_otp_walk(9)
• onenand_get_fact_prot_info(9)
• onenand_read_fact_prot_reg(9)
• onenand_get_user_prot_info(9)
• onenand_read_user_prot_reg(9)
• onenand_write_user_prot_reg(9)
• onenand_lock_user_prot_reg(9)
• onenand_check_features(9)
• onenand_print_device_info(9)
• onenand_check_maf(9)
• flexonenand_get_boundary(9)
• flexonenand_get_size(9)
• flexonenand_check_blocks_erased(9)
• onenand_chip_probe(9)
• onenand_probe(9)
• onenand_suspend(9)
• onenand_resume(9)
• onenand_scan(9)
• onenand_release(9)

that's the page, bestie 💅 — signing off with source/version ./drivers/mtd/nand/onenand and date October 2026 🎀