resource_set_size(9)

resource_set_size(9) 💅

okay so bestie, welcome to the Kernel API Manual page for resource_set_size(9) 🦋 this one is short, sweet, and does exactly one little resource-math job. let’s get into it 💖

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✨ NAME ✨

resource_set_size — Calculate resource end address from size and start

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🎀 SYNOPSIS 🎀

void resource_set_size (struct resource *res , resource_size_t size );

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🌸 ARGUMENTS 🌸

• res — Resource descriptor. the resource cutie we’re working with 🫶
• size — Size of the resource. the size value going into the calculation ✨

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💜 DESCRIPTION 💜

Calculate the end address for res based on size. that’s the whole vibe: you give it the size, and it sorts out the end address for the resource 💫

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🔥 NOTE 🔥

The start address of res must be set when calling this function. Prefer resource_set_range if setting both the start address and size.

no cap, that’s important — the start address has to be set already when you call this one. and if you’re setting both the start address and the size, bestie, use resource_set_range instead 💅

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🫶 SEE ALSO 🫶

• Kernel file ./include/linux/ioport.h — resource_alignf(9), struct resource_constraint(9), resource_set_range(9)

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okay that’s the whole page, bestie 🎀✨ source/version: ./include/linux; date: October 2026. go slay some resource math 💖💅