ata_port_pbar_desc(9)

✨ ata_port_pbar_desc 💅 — the Kernel API Manual moment

okay bestie, so this whole thing lives in the kernel API manual, section 9 — yes, the function-manual section, we love her 👑

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🌸 NAME 🌸

ata_port_pbar_desc — append PCI BAR description. that's it, that's the whole job, and she does it flawlessly ✨

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🫶 SYNOPSIS 🫶

void ata_port_pbar_desc (struct ata_port *ap , int bar , ssize_t offset
, const char *name );

literally just copy that signature exactly, no cap, don't get creative with it 🎀

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💖 ARGUMENTS 💖

• ap — the target ATA port. like, the port you're doing this for. main character energy 👑
• bar — the target PCI BAR. yes, BAR. we're going to the BAR. iconic 🍓
• offset — offset into the PCI BAR. and listen, the sign of this one matters a lot, keep reading 👀
• name — name of the area. give it a cute label, she deserves it 🏷️

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🦋 DESCRIPTION 🦋

so here's the vibe check on how this actually behaves 👇

if offset is negative, this function formats a string that contains the name, address, size and type of the BAR, and appends it to the port description. full reveal, all four things, slay 💅

if offset is zero or positive, only the name and the offsetted address get appended. that's it. shorter little blurb, still cute 🌈

LOCKING: None. ngl bestie, that's literally what it says — no locking. don't come for me, I'm just the messenger 😭

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🔥 SEE ALSO 🔥

this list is long bestie, but we're not skipping a single one — every single reference stays, periodt 🧚

Kernel file ./drivers/ata/libata-eh.c:

• __ata_ehi_push_desc(9)
• ata_ehi_push_desc(9)
• ata_ehi_clear_desc(9)
• ata_port_desc(9)
• ata_internal_cmd_timeout(9)
• ata_internal_cmd_timed_out(9)
• ata_eh_acquire(9)
• ata_eh_release(9)
• ata_scsi_error(9)
• ata_scsi_cmd_error_handler(9)
• ata_scsi_port_error_handler(9)
• ata_port_wait_eh(9)
• ata_eh_set_pending(9)
• ata_qc_schedule_eh(9)
• ata_std_sched_eh(9)
• ata_std_end_eh(9)
• ata_port_schedule_eh(9)
• ata_link_abort(9)
• ata_port_abort(9)
• __ata_port_freeze(9)
• ata_port_freeze(9)
• ata_eh_freeze_port(9)
• ata_eh_thaw_port(9)
• ata_eh_qc_complete(9)
• ata_eh_qc_retry(9)
• ata_dev_disable(9)
• ata_eh_detach_dev(9)
• ata_eh_about_to_do(9)
• ata_eh_done(9)
• ata_err_string(9)
• atapi_eh_tur(9)
• ata_eh_decide_disposition(9)
• ata_eh_request_sense(9)
• atapi_eh_request_sense(9)
• ata_eh_analyze_serror(9)
• ata_eh_analyze_tf(9)
• ata_eh_speed_down_verdict(9)
• ata_eh_speed_down(9)
• ata_eh_worth_retry(9)
• ata_eh_quiet(9)
• ata_eh_link_set_lpm(9)
• ata_eh_link_autopsy(9)
• ata_eh_autopsy(9)
• ata_get_cmd_name(9)
• ata_eh_link_report(9)
• ata_eh_report(9)
• ata_eh_set_mode(9)
• atapi_eh_clear_ua(9)
• ata_eh_maybe_retry_flush(9)
• ata_eh_recover(9)
• ata_eh_finish(9)
• ata_std_error_handler(9)
• ata_eh_handle_port_suspend(9)
• ata_eh_handle_port_resume(9)

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okay and the cute little sign-off 🫶 — this page comes from ./drivers/ata, dated October 2026, and it's ata_port_pbar_desc(9) all day every day. bye bestie, go append some BAR descriptions 💜🦋✨