qla4_82xx_idc_lock(9)

💅 qla4_82xx_idc_lock(9) — the Kernel API Manual glow-up 🎀

okay so bestie, welcome to the Kernel API Manual entry for qla4_82xx_idc_lock, and no cap this one is a little baddie of a function. it's a lock. she locks. that's the vibe. let's get into it ✨

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🌸 NAME 🌸

qla4_82xx_idc_lock — hw_lock 💅 (yes that's the whole name, she's mysterious like that)

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✨ SYNOPSIS ✨

int qla4_82xx_idc_lock (struct scsi_qla_host *ha );

that's it. one argument. one int coming back at you. iconic minimalism honestly 🫶

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🦋 ARGUMENTS 🦋

• ha — pointer to the adapter structure 🌈 like, the whole adapter. hand her over and she'll do her thing.

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💖 DESCRIPTION 💖

so what does she do? she's the general purpose lock, bestie. the main character lock. her whole job is to synchronize access to stuff like CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc. 🎀

basically when multiple things wanna touch those registers at the same time, this lock is the bouncer at the door like "one at a time please, we're not doing chaos today" 💀

note the "etc." fr fr — the manpage says CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc., so there's more in the club, but those are the named VIPs 🍓

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🧚 CONTEXT 🧚

• task, can sleep 😴

translation: this is task context, and yes she can sleep. so don't be out here calling her from somewhere that can't snooze, iykyk 🙈

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👑 SEE ALSO 👑

the kernel file in question, right here in all her glory:

• Kernel file ./drivers/scsi/qla4xxx/ql4_nx.c ⭐

and the whole friend group, all linked up:

• qla4_8xxx_ms_mem_write_128b(9)
• qla4_8xxx_collect_md_data(9)
• qla4_8xxx_uevent_emit(9)
• qla4_8xxx_device_bootstrap(9)
• qla4_82xx_need_reset_handler(9)
• qla4_8xxx_need_qsnt_handler(9)
• qla4_8xxx_device_state_handler(9)
• qla4_8xxx_stop_firmware(9)
• qla4_82xx_isp_reset(9)
• qla4_8xxx_get_sys_info(9)

go read those too, they're all part of the same squad 🦋💜

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and that's the page!! mwah 💋

this little love letter came to you from ./drivers/scsi/qla4xxx, dated October 2026 — catch you in the next manpage bestie 🌈✨💖