icssg_is_addr_synced(9)

💅 icssg_is_addr_synced(9) 💅

okay so you found yourself in the Kernel API Manual, bestie, and honestly? slay. this one's a tiny little bool-returning function in the TI ICSSG driver and it's giving "small but important" energy fr fr.

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✨ NAME ✨

icssg_is_addr_synced — checks if an address is synced from the HSR master 🎀

like, literally just a vibe check on a MAC address: did it come from hsr0 or did somebody add it by hand? iykyk.

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🦋 SYNOPSIS 🦋

bool icssg_is_addr_synced (struct net_device *ndev , const u8 *addr );

that's it. two args, one bool back. no cap, she's lowkey minimal. 💜

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🌸 ARGUMENTS 🌸

• ndev — the network device 🫶 (the interface you're asking about, obvi)
• addr — a multicast MAC address ⭐ (yes, multicast, don't come at me with unicast)

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🔥 DESCRIPTION 🔥

so what does she actually do? she checks whether the address was synced over from the HSR master (that's hsr0, bestie) via dev_mc_sync_multiple — or whether it was just added directly to the slave port. 👑

two paths, same address, different origins. this function is the main character who tells them apart. 💅

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🌈 RETURN 🌈

• true — synced from the HSR master (hsr0) ✨ she came from the group chat
• false — added directly to the slave port 🙈 she walked in on her own

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/net/ethernet/ti/icssg/icssg_prueth.c 🍓
• icssg_hsr_fdb_update(9)
• icssg_prueth_hsr_fdb_add_del(9)
• emac_ndo_open(9)
• emac_ndo_stop(9)
• icssg_hsr_handle_multicast_sync(9)
• emac_ndo_set_rx_mode(9)
• emac_xdp_xmit(9)
• emac_xdp_setup(9)
• emac_ndo_bpf(9)
• icssg_mode_firmware_names(9)

the whole friend group, honestly. go read them too. 💖

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ok that's the whole page!! no warnings, no bugs listed, no exit statuses — she's a clean girlie. don't invent problems that aren't there. 🌸

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and that's a wrap, bestie!! 🎀 this lil icon lives over in ./drivers/net/ethernet/ti/icssg, dated October 2026, and yes — the footer still says icssg_is_addr_synced(9) because she's the moment. periodt. 💅✨🦋