eeh_addr_cache_insert_dev(9)

💖 eeh_addr_cache_insert_dev — the Kernel API Manual glow-up ✨

okay so real talk, this page lives in the Kernel API Manual (yes bestie, that's the man page collection we're in) and it's about one tiny little function that does one tiny little job, and honestly? she serves. let's get into it 🎀

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✨ NAME ✨

eeh_addr_cache_insert_dev — add a device to the address cache</p> 🫶

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🌸 SYNOPSIS 🌸

void eeh_addr_cache_insert_dev (struct pci_dev *dev );

that's it. that's the whole signature. void return, one pointer, no drama 💅

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🦋 ARGUMENTS 🦋

• dev — the PCI device whose I/O addresses we are interested in 👀 like, that's literally the whole thing she wants from you. hand her a struct pci_dev * and she'll go look at its I/O addresses.

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⭐ DESCRIPTION ⭐

okay so here's the vibe, bestie: in order to support the fast lookup of devices based on addresses, the kernel maintains a cache of devices that can be quickly searched 😌 think of it like the kernel's little contact list but indexed by address instead of by name, and the whole point is speed.

this routine adds a device to that cache. that's it. that's her job. she inserts, she does not remove, she does not look anything up — she just puts dev in the cache so future lookups can find it. no cap 🧚

lowkey important: this is the insert half of the trio — there's a getter and a remover chilling in SEE ALSO if you need them 🔥

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👑 SEE ALSO 👑

• Kernel file ./arch/powerpc/kernel/eeh_cache.c Overview(9)
• eeh_addr_cache_get_dev(9)
• eeh_addr_cache_rmv_dev(9)
• eeh_addr_cache_init(9)

go read the overview, she's the main character of this whole file ngl 📖✨

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mwah 💋 that's a wrap! this page came to you from ./arch/powerpc/kernel, stamped October 2026, and it's part of the Kernel API Manual — go forth and insert your devices responsibly, bestie 🌈💜