dev_addr_flush(9)

💅 dev_addr_flush(9) — the Kernel API Manual, but make it make sense

okay so bestie, welcome to dev_addr_flush(9), straight out of the Kernel API Manual. this one's short and sweet, and honestly? iconic for it.

---

🌸 NAME 🌸

dev_addr_flush — flush the device address list 🧹✨

---

🎀 SYNOPSIS 🎀

void dev_addr_flush (struct net_device *dev );

that's it. that's the whole function signature. no cap. 🫶

---

🦋 ARGUMENTS 🦋

• dev — the device 💻 (yes, that's the whole description in the original, and honestly bestie, same. it's the device. you know the one.)

---

✨ DESCRIPTION ✨

so what does it actually do? it flushes the device address list and resets ->dev_addr. like, wipes it clean, sets it back. that's the vibe check and it passes 🔥

⚠️ and listen — the caller must hold the rtnl_mutex. not optional, not "if you feel like it", it's giving non-negotiable. lock it before you call this or you're gonna have a bad time 💀

---

👑 SEE ALSO 👑

the whole friend group 🫶 — the kernel file lives at ./net/core/dev_addr_lists.c, and here's everybody:

• __hw_addr_sync_dev(9)
• __hw_addr_ref_sync_dev(9)
• __hw_addr_ref_unsync_dev(9)
• __hw_addr_unsync_dev(9)
• __hw_addr_list_snapshot(9)
• __hw_addr_list_reconcile(9)
• dev_addr_init(9)
• dev_addr_add(9)
• dev_addr_del(9)
• dev_uc_add_excl(9)
• dev_uc_add(9)
• dev_uc_del(9)
• dev_uc_sync(9)
• dev_uc_sync_multiple(9)
• dev_uc_unsync(9)
• dev_uc_flush(9)
• dev_uc_init(9)
• dev_mc_add_excl(9)
• dev_mc_add(9)
• dev_mc_add_global(9)
• dev_mc_del(9)
• dev_mc_del_global(9)
• dev_mc_sync(9)
• dev_mc_sync_multiple(9)
• dev_mc_unsync(9)
• dev_mc_flush(9)
• dev_mc_init(9)
• netif_uc_promisc_update(9)
• __dev_set_rx_mode(9)
• netif_rx_mode_sync(9)

like, go read them, they're literally all right there, iykyk 💜

---

and that's the page!! 🌈 this masterpiece lives in ./net/core, dated October 2026, and it's filed under dev_addr_flush(9) — mwah, periodt 💅🎀💖