From: Cody Ho <codyho@stanford.edu>
Subject: [PATCH] arm64: export set_direct_map_default_noflush for Apple DRM bring-up

Temporary Gravity early-alpha packaging workaround: appledrm is modular
and references this built-in ARM64 helper. Export it to GPL-compatible
modules without changing its implementation. Drop this patch when the
pinned downstream kernel carries the corresponding export or refactor.

Signed-off-by: Cody Ho <codyho@stanford.edu>
Assisted-By: OpenAI Codex (gpt-6-astra, gpt-5.6-sol)
---
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -276,6 +276,7 @@ int set_direct_map_default_noflush(struct page *page)
 	return update_range_prot((unsigned long)page_address(page),
 				 PAGE_SIZE, set_mask, clear_mask);
 }
+EXPORT_SYMBOL_GPL(set_direct_map_default_noflush);
 
 static int __set_memory_enc_dec(unsigned long addr,
 				int numpages,