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arm64: hugetlbpage: avoid unused-but-set-parameter warning (gcc-16)

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gcc-16 warns about an instance that older compilers did not:

arch/arm64/mm/hugetlbpage.c: In function 'huge_pte_clear':
arch/arm64/mm/hugetlbpage.c:369:57: error: parameter 'addr' set but not used [-Werror=unused-but-set-parameter=]

The issue here is that __pte_clear() does not actually use its second
argument, but when CONFIG_ARM64_CONTPTE is enabled it still gets
updated.

Replace the macro with an inline function to let the compiler see
the argument getting passed down.

Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Arnd Bergmann 2026-02-16 11:54:21 +01:00 committed by Will Deacon
parent 29cc0f3aa7
commit 729a2e8e9a
1 changed files with 7 additions and 2 deletions
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9
arch/arm64/include/asm/pgtable.h
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@ -179,8 +179,6 @@ static inline pteval_t __phys_to_pte_val(phys_addr_t phys)
__pte(__phys_to_pte_val((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
#define pte_none(pte) (!pte_val(pte))
#define __pte_clear(mm, addr, ptep) \
__set_pte(ptep, __pte(0))
#define pte_page(pte) (pfn_to_page(pte_pfn(pte)))
/*
@ -1320,6 +1318,13 @@ static inline bool pud_user_accessible_page(pud_t pud)
/*
* Atomic pte/pmd modifications.
*/
static inline void __pte_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
__set_pte(ptep, __pte(0));
}
static inline int __ptep_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address,
pte_t *ptep)