param_set_dyndbg_classes(9)

💅 param_set_dyndbg_classes(9)

okay bestie, welcome to the Kernel API Manual — this one's a 9 section situation, and honestly? it's giving "tiny function, big responsibilities" energy. let's get into it 🫶

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✨ NAME ✨

param_set_dyndbg_classes — literally the class FOO >control moment. that's the whole name, no cap 💖

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🌸 SYNOPSIS 🌸

int param_set_dyndbg_classes (const char *instr , const struct
       kernel_param *kp );

look at her. two args, one int return, absolute main character energy 👑

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🎀 ARGUMENTS 🎀

• instr — the string that's been echo>d into sysfs. heads up: what it actually means depends on your map_type, so like… it's flexible 💅
• kp — this is where the state lives. specifically kp->arg has the goods: bits/lvl, map, and map_type. all three, together, iconic 🔥

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🦋 DESCRIPTION 🦋

so what does she do? she enables/disables prdbgs by their class — the classes being the ones you handed over in the arguments to DECLARE_DYNDBG_CLASSMAP. periodt ✨

and for LEVEL map-types specifically? she enforces relative levels by bitpos. that's the rule, that's the vibe check 😌

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⭐ RETURN ⭐

0 or <0 if there's an error. that's it, that's the whole story — success or sadness, no in-between 😭

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🌈 SEE ALSO 🌈

• Kernel file ./lib/dynamic_debug.c
• param_get_dyndbg_classes(9) — yeah, her counterpart, the getter to this setter, iykyk 💜

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ngl, the getter/setter duo in ./lib/dynamic_debug.c is lowkey a matched set. go read both fr fr 🧚

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and that's the page, bestie! this lil beauty comes to you from ./lib, dated October 2026, and it's param_set_dyndbg_classes(9) all the way through. slay, stay debugged, and may all your classes map correctly 💖🎀✨