Re: [PATCH] mm: export copy_to_kernel_nofault

From: David Hildenbrand
Date: Fri Oct 18 2024 - 11:13:22 EST


On 18.10.24 17:11, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@xxxxxxxx>

This symbol is now used on the kasan test module, so it needs to be
exported.

ERROR: modpost: "copy_to_kernel_nofault" [mm/kasan/kasan_test.ko] undefined!

Fixes: 44749130ffb4 ("kasan: migrate copy_user_test to kunit")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
mm/maccess.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/maccess.c b/mm/maccess.c
index 3ca55ec63a6a..8f0906180a94 100644
--- a/mm/maccess.c
+++ b/mm/maccess.c
@@ -82,6 +82,7 @@ long copy_to_kernel_nofault(void *dst, const void *src, size_t size)
pagefault_enable();
return -EFAULT;
}
+EXPORT_SYMBOL_GPL(copy_to_kernel_nofault);
long strncpy_from_kernel_nofault(char *dst, const void *unsafe_addr, long count)
{

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb