rpmsg_sg_init(9)

💖 NAME 💖

okay bestie, welcome to rpmsg_sg_init(9) from the Kernel API Manual ✨ this one is literally: rpmsg_sg_init — initialize scatterlist according to cpu address location. periodt 💅

🌸 SYNOPSIS 🌸

the whole call is giving one-liner energy:

void rpmsg_sg_init (struct scatterlist *sg , void *cpu_addr , unsigned int len );

🦋 ARGUMENTS 🦋

• sg — scatterlist to fill 🫶
• cpu_addr — virtual address of the buffer ✨
• len — buffer length 💜

✨ DESCRIPTION ✨

okay so this is an internal function, and what it does is fill the scatterlist according to the virtual address location — in vmalloc or in kernel. no cap, that’s the vibe: it’s looking at where the virtual address lives and filling sg accordingly 💅

🔥 SEE ALSO 🔥

• Kernel file ./drivers/rpmsg/virtio_rpmsg_bus.c
• struct virtproc_info(9)
• struct rpmsg_hdr(9)
• struct virtio_rpmsg_channel(9)
• __ept_release(9)
• __rpmsg_destroy_ept(9)
• rpmsg_send_offchannel_raw(9)

source/version: ./drivers/rpmsg · date: October 2026 — byeee bestie, go fill those scatterlists responsibly 🫶✨💜