qla4xxx_is_flash_ddb_exists(9)

💅 qla4xxx_is_flash_ddb_exists — kernel API manual, bestie edition

okay so you found yourself in the Kernel API Manual page for qla4xxx_is_flash_ddb_exists(9) and honestly? iconic of you. let's get into it ✨

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🌸 NAME 🌸

qla4xxx_is_flash_ddb_exists — the little function that checks if fw_ddb_entry already exists in list_nt 🫶

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✨ SYNOPSIS ✨

int qla4xxx_is_flash_ddb_exists (struct scsi_qla_host *ha , struct list_head *list_nt , struct dev_db_entry *fw_ddb_entry );

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🎀 ARGUMENTS 🎀

• ha — pointer to the host adapter structure. the main character of the story tbh 👑
• list_nt — the list of nt target 🌈
• fw_ddb_entry — the firmware ddb entry. yes bestie, that one 💅

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💖 DESCRIPTION 💖

so what does this routine do? it checks whether fw_ddb_entry already exists in list_nt, literally just so we don't end up with duplicate ddb chillin' in list_nt. no duplicates allowed, we don't do that here 🚫✨

and it returns QLA_SUCCESS if a duplicate ddb exists in list_nl — that's what the docs say, ok, list_nl, i'm just the messenger 🙈💀

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🔥 NOTE 🔥

this function also updates the isid of the DDB if required. lowkey doing two jobs, highkey slaying 🫶

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🦋 SEE ALSO 🦋

kernel file ./drivers/scsi/qla4xxx/ql4_os.c — and honestly the whole friend group:

• qla4xxx_create_chap_list(9)
• qla4xxx_find_free_chap_index(9)
• qla4xxx_set_chap_entry(9)
• qla4xxx_mark_all_devices_missing(9)
• qla4xxx_queuecommand(9)
• qla4xxx_mem_free(9)
• qla4xxx_mem_alloc(9)
• qla4_8xxx_check_temp(9)
• qla4_8xxx_check_fw_alive(9)
• qla4_8xxx_watchdog(9)
• qla4xxx_timer(9)
• qla4xxx_cmd_wait(9)
• qla4xxx_soft_reset(9)
• qla4xxx_abort_active_cmds(9)
• qla4xxx_recover_adapter(9)
• qla4xxx_do_dpc(9)
• qla4xxx_free_adapter(9)
• qla4xxx_get_bidi_chap(9)
• qla4xxx_check_existing_isid(9)
• qla4xxx_update_isid(9)
• qla4xxx_should_update_isid(9)
• qla4xxx_remove_failed_ddb(9)
• qla4xxx_sysfs_ddb_is_non_persistent(9)
• qla4xxx_sysfs_ddb_tgt_create(9)
• qla4xxx_sysfs_ddb_add(9)
• qla4xxx_sysfs_ddb_apply(9)
• qla4xxx_sysfs_ddb_login(9)
• qla4xxx_sysfs_ddb_logout_sid(9)
• qla4xxx_sysfs_ddb_logout(9)
• qla4xxx_sysfs_ddb_set_param(9)
• qla4xxx_sysfs_ddb_delete(9)
• qla4xxx_sysfs_ddb_export(9)
• qla4xxx_build_ddb_list(9)
• qla4xxx_wait_login_resp_boot_tgt(9)
• qla4xxx_probe_adapter(9)
• qla4xxx_prevent_other_port_reinit(9)
• qla4xxx_remove_adapter(9)
• qla4xxx_config_dma_addressing(9)
• qla4xxx_del_from_active_array(9)
• qla4xxx_eh_wait_on_command(9)
• qla4xxx_wait_for_hba_online(9)
• qla4xxx_eh_wait_for_commands(9)
• qla4xxx_eh_abort(9)
• qla4xxx_eh_device_reset(9)
• qla4xxx_eh_target_reset(9)
• qla4xxx_is_eh_active(9)
• qla4xxx_eh_host_reset(9)
• qla4xxx_pci_mmio_enabled(9)

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ngl bestie, that's a lot of friends. read them if you dare 💀 but like, respectfully, they're all right there in the same neighborhood.

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and that's the whole page! 🎀 brought to you by ./drivers/scsi/qla4xxx, dated October 2026, and yes it's the qla4xxx_is_flash_ddb_exists(9) page — go forth and never duplicate a ddb in list_nt, periodt 💜🦋