pr_notice(9)

💜 pr_notice — Kernel API Manual ✨

okay so bestie, welcome to the pr_notice(9) page 🎀 this is one of those tiny-but-iconic kernel macros and honestly? she ate. let's get into it 💅

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🌸 NAME 🌸

pr_notice — the girl who prints a notice-level message 💖 that's it, that's the job, and she does it flawlessly, no cap.

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✨ SYNOPSIS ✨

pr_notice (fmt , ... );

like, you call her, you hand her a format string, you hand her the args, she handles the rest 🫶

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🦋 ARGUMENTS 🦋

• fmt — the format string 💫 literally the template for whatever you wanna say
• ... — the arguments for the format string 🍓 i.e. all the little values that get slotted into fmt

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🌈 DESCRIPTION 🌈

so here's the tea ☕ this is a macro, right? and it expands into a printk call rocking the KERN_NOTICE loglevel 🔥 so everything you print through her shows up tagged as notice-level, periodt.

and the way that she's so smart?? she uses pr_fmt to generate the format string 💅 so your output gets that nice prefixed treatment, iykyk. it's giving "small macro, big main character energy" 👑

no like genuinely, don't sleep on this one — she's doing a lot of work behind the scenes for something that looks like one little line 🧚

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👑 SEE ALSO 👑

go check out the kernel file ./include/linux/printk.h for the whole squad 💖 and then these icons, fr fr:

• printk_cpu_sync_get_irqsave(9)
• printk_cpu_sync_put_irqrestore(9)
• pr_fmt(9)
• printk(9)
• pr_emerg(9)
• pr_alert(9)
• pr_crit(9)
• pr_err(9)
• pr_warn(9)
• pr_info(9)
• pr_cont(9)
• pr_devel(9)
• pr_debug(9)
• print_hex_dump_bytes(9)

like the whole printk friend group 😭💀 every loglevel has her moment and honestly? we love a supportive family 🌸

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and that's the page bestie!! 🌈 this lil beauty lives over in ./include/linux and the version we're looking at is dated October 2026 🎀 so yeah — go forth, print your notices, and slay 💅✨💜