devm_phy_package_join(9)

💅 devm_phy_package_join(9) — from the Kernel API Manual, bestie ✨

okay so picture this: you're a driver, you've got a PHY package situation, and you want the kernel to handle the cleanup so you don't have to. that's literally this function. it's devm_phy_package_join() and it's giving responsible-adult energy 🫶

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🌸 SYNOPSIS 🌸

int devm_phy_package_join (struct device *dev , struct phy_device
*phydev , int base_addr , size_t priv_size );

four args, one int back. simple. clean. we love to see it 💖

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🎀 ARGUMENTS 🎀

• dev — the device that's registering this PHY package. yes, this one. the one doing the registering. main character behavior honestly 👑
• phydev — the target struct phy_device we're pointing at. that's the vibe check target 🦋
• base_addr — the cookie and the base PHY address of the PHY package. it's used for offset calculation when you do global register access, so don't just toss a random number in there, iykyk 💀
• priv_size — if this is non-zero, the function allocates this many bytes for private data. if it's zero? then no allocation, no problem, we move 🧚

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✨ DESCRIPTION ✨

this is phy_package_join() but managed — like, the grown-up version with a safety net 🌈

the shared storage gets fetched by this function, and phy_package_leave is automatically called on driver detach. automatic. no cap. you don't have to remember, the kernel remembers for you 😭💜

want the full lore? go read phy_package_join — this one just points you there. no gatekeeping 💅

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/phy/phy_package.c struct
• phy_package_shared(9)
• phy_package_lock(9)
• phy_package_unlock(9)
• __phy_package_read_mmd(9)
• __phy_package_write_mmd(9)
• phy_package_join(9)
• of_phy_package_join(9)
• phy_package_leave(9)
• devm_of_phy_package_join(9)

a whole friend group of package functions fr fr, go say hi to all of them 🫶🌸

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ngl bestie, the whole point is the managed part. let devm clean up after you on detach, that's the entire slay 💖

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okay that's the page!! sourced from ./drivers/net/phy, dated October 2026, and it's devm_phy_package_join(9) forever and always ⭐👑 bye bestie, go join a package responsibly 🎀💜