sg_dma_is_bus_address(9)

okay so bestie, welcome to sg_dma_is_bus_address, straight out of the Kernel API Manual 💅✨

✨ NAME ✨

sg_dma_is_bus_address — return whether a given segment was marked as a bus address. periodt.

🌸 SYNOPSIS 🌸

bool sg_dma_is_bus_address (struct scatterlist *sg );

🎀 ARGUMENTS 🎀

• sg — SG entry. That's the segment we're vibe-checking, bestie 🫶

💖 DESCRIPTION 💖

So like, this function literally returns true if sg_dma_mark_bus_address has been called on this segment.

That's the whole tea. No cap. 🔥

🦋 SEE ALSO 🦋

Kernel file ./include/linux/scatterlist.h is the home base, and the whole squad is:

• sg_next(9)
• sg_assign_page(9)
• sg_set_page(9)
• sg_set_folio(9)
• sg_set_buf(9)
• sg_chain(9)
• sg_mark_end(9)
• sg_unmark_end(9)
• sg_dma_mark_bus_address(9)
• sg_dma_unmark_bus_address(9)
• sg_dma_is_swiotlb(9)
• sg_dma_mark_swiotlb(9)
• sg_phys(9)
• sg_virt(9)
• sg_init_marker(9)
• sg_alloc_table_from_pages(9)
• sg_page_iter_page(9)
• sg_page_iter_dma_address(9)
• for_each_sg_page(9)
• for_each_sg_dma_page(9)
• for_each_sgtable_page(9)
• for_each_sgtable_dma_page(9)

mwah 💋 — source/version vibes come from ./include/linux, dated October 2026, and this iconic page is sg_dma_is_bus_address(9). byeee 🎀