devlink_shd_get(9)

💖 devlink_shd_get(9) 💖

okay bestie, straight from the Kernel API Manual: this one is about getting or creating a shared devlink instance. It's giving “you already know them? then you already know them” energy. 🫶

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✨ NAME ✨

devlink_shd_get — Get or create a shared devlink instance. lowkey iconic. 💅

🌸 SYNOPSIS 🌸

       struct devlink * devlink_shd_get (const char *id , const struct
       devlink_ops *ops , size_t priv_size , const struct device_driver *driver
       );

No cap, that's the whole signature. ✨

🎀 ARGUMENTS 🎀

• id — Identifier string (e.g., serial number) for the shared instance. It's the group-chat name, basically.
• ops — Devlink operations structure. The whole ops vibe.
• priv_size — Size of private data structure.
• driver — Driver associated with the shared devlink instance.

🦋 DESCRIPTION 🦋

Get an existing shared devlink instance identified by id, or create a new one if it doesn't exist. Return the devlink instance with a reference held. The caller must call devlink_shd_put when done. 🫶

All callers sharing the same id must pass identical ops, priv_size and driver. A mismatch triggers a warning and returns NULL.

⚠️ bestie, do not play with this: a mismatch triggers a warning and returns NULL. periodt.

🌈 RETURN 🌈

Pointer to the shared devlink instance on success, NULL on failure. That's the whole vibe check. ✅

👑 SEE ALSO 👑

• Kernel file ./net/devlink/sh_dev.c
• devlink_shd_put(9)
• devlink_shd_get_priv(9)

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xoxo, this page's source is ./net/devlink, dated October 2026. slay and read the source. 💜