warnf(9)

okay so bestie, welcome to warnf(9) from the Kernel API Manual — it’s giving “tiny but important kernel helper” energy, and we’re gonna get into it. 💖

🌸 NAME 🌸

warnf — Store supplementary warning message

✨ SYNOPSIS ✨

warnf (fc , fmt , ... );

🎀 ARGUMENTS 🎀

• fc — the context in which to log the error message. Basically the situation/context vibe for the log. 🫶
• fmt — the format string. You know the drill, bestie. ✨
• ... — variable arguments. The extra lil’ arguments that come along for the ride. 🎀

🦋 DESCRIPTION 🦋

So this one stores the supplementary warning message for the process — but only if the process has enabled the facility. That’s the whole move. No cap. 💅

💅 SEE ALSO 💅

• Kernel file ./include/linux/fs_context.h — plus the related besties infof(9), errorf(9), and invalf(9). 👑

xoxo, source/version stamp: ./include/linux · date: October 2026 · manual page: warnf(9) — bye bestie, go log responsibly 💜✨