csio_rnode_lookup_portid(9)

💅 csio_rnode_lookup_portid

okay bestie, welcome to section 9 of the Kernel API Manual — yes we're in the kernel, yes we're being adorable about it. This one's a little lookup function and honestly? She's serving "where's my rnode" realness. Let's get into it ✨

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🌸 NAME 🌸

csio_rnode_lookup_portid — finds the rnode with the given portid 🎀

Like, that's literally her whole job. She looks, she finds, she slays.

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✨ SYNOPSIS ✨

struct csio_rnode * csio_rnode_lookup_portid (struct csio_lnode *ln ,
uint32_t portid );

That's the whole signature, no cap. She takes two things and hands you back a struct csio_rnode * — or <italic>not that</italic>, which we'll get to 👀

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🦋 ARGUMENTS 🦋

• ln — the lnode. your girl needs to know which lnode we're even talking about before she goes looking, obviously 💅
• portid — the port id. this is the thing she's hunting for, like the one specific vibe you're trying to find in a crowded group chat 🔍

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💖 DESCRIPTION 💖

So here's the tea: she looks up the rnode list for a given portid. That's it, that's the function.

And if no matching entry is found? She returns NULL. Periodt. No match, no rnode, you get the empty hand 🫶 It's giving "sorry bestie, not in the list."

ngl, <red>always check for that NULL` — she will absolutely hand it to you and walk away 💀

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/scsi/csiostor/csio_rnode.c — go read the source, iykyk 📖
• csio_rnode_fwevt_handler(9) — her friend, also iconic, also worth a look 👑

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and that's the whole page, bestie!! 🧚‍♀️

this cutie lives in ./drivers/scsi/csiostor, the version/date stamp is October 2026, and it's filed under Kernel API Manual. mwah, go forth and look up those portids 💜🍓