ib_port_regi...lient_groups(9)

💅 ib_port_regi...lient_groups(9) — like, the truncated-est name in the whole Kernel API Manual bestie

okay so first thing's first: yes, the title is literally cut off with ... in the middle. That's not me being lazy, that's the actual header, and honestly? It's giving mystery. It's giving "you'll have to open the file to find out." Queen behaviour, no notes. This page lives in the Kernel API Manual section, and it's about one very specific tiny little function, so let's get into it 🎀

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✨ NAME ✨

ib_port_register_client_groups — adds an ib_client's attributes to the port. That's the whole job. That's the assignment. 🫶

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🌸 SYNOPSIS 🌸

int ib_port_register_client_groups (struct ib_device *ibdev , u32
port_num , const struct attribute_group **groups );

returns an int, takes three args, and yes the line break in the middle of u32 port_num is exactly how it's written. we don't fix it. we respect it. 💜

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🦋 ARGUMENTS 🦋

• ibdev — the IB device you're adding counters to. this is your main character. the device in question. 🔥
• port_num — a valid port number. valid, bestie. do not come in here with an invalid one, that's not the vibe. 😭
• groups — the group list of attributes. it's const struct attribute_group ** so it's a whole list of groups, pointer-to-pointer style. slay. ✨

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💀 DESCRIPTION 💀

Do not use. Only for legacy sysfs compatibility.

that's it. that's the entire description. the manpage literally opens with "do not use." no cap. it's a whole red flag and the red flag is the documentation itself 🚩

so like, for real: this one exists purely to keep legacy sysfs compatibility alive. it's not for new code, it's not for your fresh little driver, it's not for whatever you're cooking up at 2am. it's a museum piece. it's the glass case with the little "please don't touch" sign. admire it, walk past it, keep it moving 💅

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/infiniband/core/sysfs.c — go read the source if you're that curious, iykyk 🧚

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and that's the whole page, bestie, short and iconic. this was /drivers/infiniband/core, brought to you by the fine folks of October 2026. mwah 💖 ⭐ 👑