drm_gem_is_...rted_dma_buf(9)

💅 NAME 💅

drm_gem_is_prime_exported_dma_buf — okay so this one checks if the DMA-BUF was exported from a GEM object belonging to @dev. That's it, that's the whole job bestie 🫶

✨ SYNOPSIS ✨

bool drm_gem_is_prime_exported_dma_buf (struct drm_device *dev , struct dma_buf *dma_buf );

🎀 ARGUMENTS 🎀

• dev — the drm_device you're checking against. Like, this is the device we're asking about 💖
• dma_buf — the dma-buf object to import. The one on trial, basically 🦋

⭐ RETURN ⭐

Returns true if the DMA-BUF was exported from a GEM object belonging to dev, and false otherwise. Iconic boolean behaviour, no notes 👑

🌈 SEE ALSO 🌈

Like the whole friend group, fr fr — go read these too:

• Kernel file ./drivers/gpu/drm/drm_prime.c overview and lifetime rules(9) 👑
• drm_gem_dmabuf_export(9)
• drm_gem_dmabuf_release(9)
• drm_gem_prime_fd_to_handle(9)
• drm_gem_prime_handle_to_dmabuf(9)
• drm_gem_prime_handle_to_fd(9)
• PRIME Helpers(9) ✨
• drm_gem_map_attach(9)
• drm_gem_map_detach(9)
• drm_gem_map_dma_buf(9)
• drm_gem_unmap_dma_buf(9)
• drm_gem_dmabuf_vmap(9)
• drm_gem_dmabuf_vunmap(9)
• drm_gem_prime_mmap(9)
• drm_gem_dmabuf_mmap(9)
• drm_prime_pages_to_sg(9)
• drm_prime_get_contiguous_size(9)
• drm_gem_prime_export(9)
• drm_gem_prime_import_dev(9)
• drm_gem_prime_import(9)
• drm_prime_sg_to_page_array(9)
• drm_prime_sg_to_dma_addr_array(9)
• drm_prime_gem_destroy(9) 💀

Okay that's the whole page, mwah 💋 this lives in ./drivers/gpu/drm and it's dated October 2026, from the Kernel API Manual. Go forth and vibe check your dma-bufs bestie 🌸🧚💜