ipv6_rearrange_destopt(9)

💅 ipv6_rearrange_destopt — a Kernel API Manual moment (section 9, bestie)

okay so picture this: you're deep in the kernel, section 9 of the manual, and there's this little function called ipv6_rearrange_destopt that literally just rearranges the IPv6 destination options header. that's it. that's the whole vibe. ✨

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🌸 NAME 🌸

ipv6_rearrange_destopt — rearrange IPv6 destination options header 🎀

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✨ SYNOPSIS ✨

void ipv6_rearrange_destopt (struct ipv6hdr *iph , struct ipv6_opt_hdr
*destopt );

no cap, that's the whole signature. returns void, so don't go looking for a return value, she gives you nothing back and she's iconic for it. 💅

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🫶 ARGUMENTS 🫶

• iph — the IPv6 header. yeah. that one. 👑
• destopt — the "destionation options header" — and yes, bestie, that is exactly how it's spelled in the source, we do not fix it, we respect the typo, it's part of the lore. 🙈 (it's the destination options header, iykyk)

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🔥 SEE ALSO 🔥

• Kernel file ./net/ipv6/ah6.c — go read it, it's giving source-of-truth energy ⭐
• ipv6_rearrange_rthdr(9) — the sibling function, same rearrange agenda, different header 🌈

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lowkey a warning but mostly just a reminder: this page is thin on purpose, she's a one-job function. don't invent extra behaviour for her, that's not the move. 💀

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and that's the page, bestie! 🦋 this one came out of ./net/ipv6, dated October 2026, in the ipv6_rearrange_destopt(9) era — mwah, go rearrange some headers, you got this 💖🎀🌟