bpf_cpumask_clear(9)

💅 bpf_cpumask_clear — bestie edition

okay so real talk, this is bpf_cpumask_clear(9) straight out of the Kernel API Manual, and it is genuinely one of the simplest little icons in the whole BPF cpumask family. no cap. she just… clears stuff ✨

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🌸 NAME 🌸

bpf_cpumask_clear — clears, like, all of the bits in a BPF cpumask. every single one. gone. 💅

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🎀 SYNOPSIS 🎀

__bpf_kfunc void bpf_cpumask_clear (struct bpf_cpumask *cpumask );

yep that's the whole signature, copy it exactly, she's sensitive about her whitespace 🫶

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💖 ARGUMENTS 💖

• cpumask — the BPF cpumask that's getting cleared. that's it. that's the argument. she's the main character here and she is about to be empty 🌸

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✨ SEE ALSO ✨

the whole friend group, fr fr. all of these live in the kernel file ./kernel/bpf/cpumask.c:

• struct bpf_cpumask(9)
• bpf_cpumask_create(9)
• bpf_cpumask_acquire(9)
• bpf_cpumask_release(9)
• bpf_cpumask_first(9)
• bpf_cpumask_first_zero(9)
• bpf_cpumask_first_and(9)
• bpf_cpumask_set_cpu(9)
• bpf_cpumask_clear_cpu(9)
• bpf_cpumask_test_cpu(9)
• bpf_cpumask_test_and_set_cpu(9)
• bpf_cpumask_test_and_clear_cpu(9)
• bpf_cpumask_setall(9)
• bpf_cpumask_and(9)
• bpf_cpumask_or(9)
• bpf_cpumask_xor(9)
• bpf_cpumask_equal(9)
• bpf_cpumask_intersects(9)
• bpf_cpumask_subset(9)
• bpf_cpumask_empty(9)
• bpf_cpumask_full(9)
• bpf_cpumask_copy(9)
• bpf_cpumask_any_distribute(9)
• bpf_cpumask_any_and_distribute(9)
• bpf_cpumask_weight(9)
• bpf_cpumask_populate(9)

lowkey go read bpf_cpumask_setall(9) right after this one, she's the exact opposite energy and together they're a whole vibe check 🔥

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mwah 💜 that's the page! this lil beauty ships from ./kernel/bpf and is dated October 2026, so go forth and clear those bits bestie, you're gonna slay 🦋✨