ERR_CAST(9)

💅 ERR_CAST(9) — Kernel API Manual, bestie edition ✨

okay so welcome to ERR_CAST(9) from the Kernel API Manual. It's short, it's sweet, and it has serious main character energy: explicit casting of an error-valued pointer to another pointer type. No cap. 🫶

📛 NAME

ERR_CAST — Explicitly cast an error-valued pointer to another pointer type. That's the whole assignment, bestie. Periodt. 🌸

✨ SYNOPSIS

void * ERR_CAST (__force const void *ptr );

🎀 ARGUMENTS

• ptr — the pointer to cast. Literally that. Nothing extra. 💅

💖 DESCRIPTION

Explicitly cast an error-valued pointer to another pointer type in such a way as to make it clear that's what's going on. It's giving “yes, this cast is on purpose, bestie” — and honestly? Obsessed with the clarity. ✨

👀 SEE ALSO

• Kernel file ./tools/include/linux/err.h — go peek, iykyk. 🦋

vibe check: short page, explicit cast, no cap. 💖

made with 💖 from ./tools/include/linux · October 2026 · ERR_CAST(9) ✨🧚