batadv_param_set_ra(9)

✨ batadv_param_set_ra(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one's a little function from batman-adv and it's literally the bouncer at the club door for your routing algorithm setting 🎀

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💖 NAME 💖

batadv_param_set_ra — validate and store the routing_algo module parameter. that's it, that's the whole job, and it does it flawlessly 💅

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🌸 SYNOPSIS 🌸

int batadv_param_set_ra (const char *val , const struct kernel_param *kp
);

like, it takes two things and gives you back an int. classic. no notes. ✨

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🦋 ARGUMENTS 🦋

• val — the new value for the routing_algo module parameter. this is the main character of the function ngl, it's the thing you actually wanna set 🫶
• kp — the kernel parameter description, and it's the one that actually stores the value. lowkey the backbone of the operation 💜

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🎀 DESCRIPTION 🎀

so here's the vibe check: it checks that the algorithm you're asking for is actually known to batman-adv — like, does this algorithm even go here?? and if it does, it stores the name as the new default routing algorithm. slay. 🏆

that's the whole flow: validate first, then store. no cap, it does not skip the validation step, and honestly? iconic behaviour. 👑

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⭐ RETURN ⭐

• 0 on success 🎉
• a negative error number in case of failure 😭 (yes, negative — that's the convention, don't come for me)

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🌈 SEE ALSO 🌈

Kernel file ./net/batman-adv/bat_algo.c — go read it, it's giving lore:

• batadv_algo_init(9)
• batadv_algo_get(9)
• batadv_algo_register(9)
• batadv_algo_select(9)
• batadv_algo_dump_entry(9)
• batadv_algo_dump(9)

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annnnd that's the page bestie 💖 this one lives in ./net/batman-adv, dated October 2026, and it's batadv_param_set_ra(9) all the way down. periodt. 🧚‍♀️🌸