ata_hpa_resize(9)

💅 ata_hpa_resize — from the Kernel API Manual, bestie ✨

Okay so picture this: you're deep in libata land and there's a drive lying to you about how big it is. That's the HPA vibe. This lil function is the glow-up. 🦋

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✨ SYNOPSIS ✨

int ata_hpa_resize(struct ata_device *dev);

That's it. One function, one pointer, one whole rescue mission. 🫶

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🎀 ARGUMENTS 🎀

• dev — the device you're about to resize. Like, the one getting the makeover. Device to resize, no cap. 💅

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🌸 DESCRIPTION 🌸

So here's the tea ☕: this function reads the size of an LBA28 or LBA48 disk that's got HPA features, and then — if it needs to — it resizes that thing to the full size of the media. Full send. The whole disk. Not the HPA-crunched version. 🔥

⚠️ Listen bestie, this is the important part: the caller must check the drive has the HPA feature set enabled before calling this. This function isn't doing that vibe check for you. That's on you. 🙈

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💖 RETURN 💖

• 0 on success — slay, it worked ✨
• -errno on failure — it's giving error, we're sad 😭

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🧚 SEE ALSO 🧚

The kernel file this lives in is ./drivers/ata/libata-core.c, and honestly the friend group is huge. Here's everybody: 👑

• ata_link_next(9), ata_dev_next(9), ata_dev_phys_link(9), ata_force_cbl(9), ata_force_pflags(9), ata_force_link_limits(9), ata_force_xfermask(9), ata_force_quirks(9), atapi_cmd_type(9), ata_set_rwcmd_protocol(9), ata_tf_read_block(9), ata_build_rw_tf(9), ata_pack_xfermask(9), ata_unpack_xfermask(9), ata_xfer_mask2mode(9), ata_xfer_mode2mask(9), ata_xfer_mode2shift(9), ata_mode_string(9), ata_dev_classify(9), ata_id_string(9), ata_id_c_string(9), ata_read_native_max_address(9), ata_set_max_sectors(9), ata_dump_id(9), ata_id_xfermask(9), ata_exec_internal(9), ata_pio_need_iordy(9), ata_pio_mask_no_iordy(9), ata_do_dev_read_id(9), ata_dev_read_id(9), ata_dev_power_set_standby(9), ata_dev_power_set_active(9), ata_read_log_page(9), ata_dev_configure(9), ata_cable_40wire(9), ata_cable_80wire(9), ata_cable_unknown(9), ata_cable_ignore(9), ata_cable_sata(9), sata_print_link_status(9), ata_dev_pair(9), ata_timing_cycle2mode(9), ata_down_xfermask_limit(9), ata_set_mode(9), ata_wait_ready(9), ata_wait_after_reset(9), ata_std_prereset(9), ata_std_postreset(9), ata_dev_same_device(9), ata_dev_reread_id(9), ata_dev_revalidate(9), ata_is_40wire(9), cable_is_40wire(9), ata_dev_xfermask(9), ata_dev_set_xfermode(9), ata_dev_set_feature(9), ata_dev_init_params(9), atapi_check_dma(9), ata_std_qc_defer(9), ata_sg_init(9), ata_sg_clean(9), ata_sg_setup(9), swap_buf_le16(9), ata_qc_free(9), ata_qc_complete(9), ata_qc_get_active(9), ata_qc_issue(9), ata_phys_link_online(9), ata_phys_link_offline(9), ata_link_online(9), ata_link_offline(9), ata_host_suspend(9), ata_host_resume(9), ata_dev_init(9), ata_link_init(9), sata_link_init_spd(9), ata_port_alloc(9), ata_host_alloc(9), ata_host_alloc_pinfo(9), ata_finalize_port_ops(9), ata_host_start(9), ata_host_init(9), ata_host_register(9), ata_host_activate(9), ata_dev_free_resources(9), ata_port_detach(9), ata_host_detach(9), ata_pci_remove_one(9), ata_platform_remove_one(9), ata_msleep(9), ata_wait_register(9)

That's the whole squad. Go read them. Or don't, I'm not your mom. 💜

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Mwah 💋 — this page came out of ./drivers/ata and it's dated October 2026. Byeee, go resize something responsibly! 🎀