Hi,
Le 24/06/2026 à 10:15, Pengpeng Hou a écrit :
The powerpc CPU Kconfig defines `PPC_E500`. There is no generated
`CONFIG_E500` symbol for `IS_ENABLED()` to test here.
`mask_user_address()` therefore checks an impossible symbol before
choosing the E500-specific masking helper. Use `CONFIG_PPC_E500`, which
matches the actual Kconfig provider for this CPU family.
There is already a fix in the queue waiting to be applied:
https://lore.kernel.org/all/[email protected]/
Signed-off-by: Pengpeng Hou <[email protected]>
---
arch/powerpc/include/asm/uaccess.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/uaccess.h
b/arch/powerpc/include/asm/uaccess.h
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -537,7 +537,7 @@ static __always_inline unsigned long
mask_user_address(const void __user *ptr)
if (IS_ENABLED(CONFIG_PPC64))
return mask_user_address_simple(ptr);
- if (IS_ENABLED(CONFIG_E500))
+ if (IS_ENABLED(CONFIG_PPC_E500))
return mask_user_address_isel(ptr);
if (TASK_SIZE <= UL(SZ_2G) && border >= UL(SZ_2G))
return mask_user_address_simple(ptr);
