arc_reg_clr(9)

💅 arc_reg_clr — the Kernel API Manual moment

okay so bestie, this is arc_reg_clr(9) from the Kernel API Manual, and it's honestly such a clean little function. let me tell you everything 🫶

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✨ NAME ✨

arc_reg_clr — applies a mask to a specified EMAC register, and it does it like this: ("reg" & ~"mask"). yes ma'am, that tilde is doing the heavy lifting 💅

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🌸 SYNOPSIS 🌸

void arc_reg_clr (struct arc_emac_priv *priv , int reg , int mask );

that's it. that's the whole vibe. void, three args, no notes ✨

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🎀 ARGUMENTS 🎀

• priv — pointer to the ARC EMAC private data structure. it's giving "here's where all the gossip lives" 💖
• reg — the register offset from the base address. so like, which register we're pulling up on 🦋
• mask — the mask you're applying to that specified register. this is the main character of the operation ngl 👑

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🔥 DESCRIPTION 🔥

okay so here's the whole lore: this function reads the initial register value first, then applies the provided mask to it, and then writes it right back. three steps, zero drama, and honestly? it ate 😭

read → mask → write. no cap, that's the entire bit and it slays 💀

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/net/ethernet/arc/emac.h
• struct arc_emac_bd(9)
• struct buffer_state(9)
• struct arc_emac_priv(9)
• arc_reg_set(9)
• arc_reg_get(9)
• arc_reg_or(9)

the whole friend group, fr fr 🌈 — go read arc_reg_set, arc_reg_get and arc_reg_or next, they're literally the siblings of this one 🍓

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and that's the page, bestie 💜 this iconic lil manual page lives under ./drivers/net/ethernet/arc, it's dated October 2026, and it goes by arc_reg_clr(9) — periodt ✨👑