devl_linecard_create(9)

💅 devl_linecard_create(9)

okay so bestie, welcome to the Kernel API Manual — this one's called devl_linecard_create, and yes it's a (9) page which means it's a kernel function, not a command you type into your shell. iykyk 🎀

It lives in ./net/devlink. slay.

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✨ NAME ✨

devl_linecard_create — create a devlink linecard. that's it, that's the whole vibe. literally just making a linecard. 💅

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🌸 SYNOPSIS 🌸

struct devlink_linecard * devl_linecard_create (struct devlink *devlink
, unsigned int linecard_index , const struct devlink_linecard_ops *ops ,
void *priv );

bestie look at her. four arguments, one return value, zero chill. ✨

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🦋 ARGUMENTS 🦋

• devlink — the devlink. yeah. that's the whole description. it's a devlink. 🫶
• linecard_index — the driver-specific numerical identifier of the linecard. key word here is driver-specific, so it's literally whatever numbering your driver feels like, no cap.
• ops — the linecard's ops. the operations. the moves. 💃
• priv — user priv pointer. it's yours, do what you want with it. 🙈

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💖 DESCRIPTION 💖

okay so here's the tea: this creates a devlink linecard instance with the linecard index you provided. and the caller — that's you, bestie — can use any indexing you want. literally any. even a hw-related one. it's giving "you do you". 🔥

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⭐ RETURN ⭐

you get back either the line card structure (slay 🎀) or an ERR_PTR encoded error code (not slay 😭). check it before you deref it, please, i'm begging.

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🌈 SEE ALSO 🌈

okay so the kernel file it lives in is ./net/devlink/linecard.c, and here's the whole friend group — go say hi 👑:

• devl_linecard_destroy(9)
• devlink_linecard_provision_set(9)
• devlink_linecard_provision_clear(9)
• devlink_linecard_provision_fail(9)
• devlink_linecard_activate(9)
• devlink_linecard_deactivate(9)
• devlink_linecard_nested_dl_set(9)

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and that's the page, bestie 🧚 this one came out of ./net/devlink and it's dated October 2026 — yes, the future. we stay ahead. 💜✨