ksz9477_flower_parse_key_l2(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ksz9477_flower_parse_key_l2(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes that's Kernel API Manual, capital letters, we're being official today 🎀 and this page is literally all about ksz9477_flower_parse_key_l2. Sit down, hydrate, let's go.

✨ NAME ✨

ksz9477_flower_parse_key_l2 — it parses the Layer 2 key from a flow rule and then configures the ACL entries accordingly. that's it, that's the whole job, and honestly? she ate. 💅

🦋 SYNOPSIS 🦋

int ksz9477_flower_parse_key_l2 (struct ksz_device *dev , int port ,
struct netlink_ext_ack *extack , struct flow_rule *rule , unsigned long
cookie , u32 prio );

no cap, that's the whole signature — six args, one int coming back at you. 🫶

🌸 ARGUMENTS 🌸

every single one, bestie, we're not skipping anybody:

  • dev — a pointer to the struct ksz_device. the main character device struct, everything hangs off her 👑
  • port — the port number. just a plain number, no drama. 🔢
  • extack — a pointer to the struct netlink_ext_ack. she's the messenger when things go sideways, iykyk.
  • rule — a pointer to the struct flow_rule. this is where the Layer 2 key is living and we're about to parse the heck out of it 💖
  • cookie — the cookie you wanna associate with the entry 🍪 (yes, literally called a cookie, we love that for us)
  • prio — the priority of the entry. a u32, iconic, no notes. ⭐

🔥 DESCRIPTION 🔥

so here's the vibe check: this function parses the Layer 2 key out of the flow rule, then configures the corresponding ACL entries. that's the whole arc. 🦋

but before she goes ahead and starts configuring, she does her little pre-flight checks — she checks for unsupported offloads and for available entries before proceeding with the configuration. like a true responsible queen, she looks before she leaps. 🙈✨

fr fr do not skip the vibe check — the whole point is she validates before she configures anything.

🌈 RETURN 🌈

  • 0 on success 💖
  • a negative error code on failure 😭

that's it. zero means slay, negative means the situation has gone off the rails. 💀

🎀 SEE ALSO 🎀

go read these next, bestie, they're the friend group:

all of them, no cap, every single reference is right there. 🫶

and that's the page!! mwah 💋 huge sign-off energy: this little beauty lives in ./drivers/net/dsa/microchip, and she was stamped October 2026 — so yeah, she's dated, she's sourced, she's iconic, periodt. 🌈👑🍓

📦 where this page comes from