diff mbox series

[RFC,v3,01/21] ARM: mm: make nommu pgd_t a scalar

Message ID 20260902-dummy_ptxp3-v3-1-5d8f5b17c25c@arm.com
State New
Headers show
Series mm: change behavior of pXdp_get()/pXd_page() in compile-time folded pgtable | expand

Commit Message

Yeoreum Yun Sept. 2, 2026, 11:56 a.m. UTC 
From: "David Hildenbrand (Arm)" <david@kernel.org>

As pgd_t is returned  from a function, like pgdp_get(). pgd_t shouldn't be
an array.

There is no need to match the actual arm page tables, because with nommu
there are no page tables. It's all just in place to make the compiler
happy. Making it a scalar will make the compiler happy.

So let's just use an u32.

Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
 arch/arm/include/asm/page-nommu.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm/include/asm/page-nommu.h b/arch/arm/include/asm/page-nommu.h
index e74415c959be..88659b38e236 100644
--- a/arch/arm/include/asm/page-nommu.h
+++ b/arch/arm/include/asm/page-nommu.h
@@ -18,12 +18,12 @@ 
  */
 typedef unsigned long pte_t;
 typedef unsigned long pmd_t;
-typedef unsigned long pgd_t[2];
+typedef unsigned long pgd_t;
 typedef unsigned long pgprot_t;
 
 #define pte_val(x)      (x)
 #define pmd_val(x)      (x)
-#define pgd_val(x)	((x)[0])
+#define pgd_val(x)      (x)
 #define pgprot_val(x)   (x)
 
 #define __pte(x)        (x)