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s390/mm: fix -Wunused-but-set-variable warnings

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Convert two functions to static inline to get ride of W=1 GCC warnings
like,

mm/gup.c: In function 'gup_pte_range':
mm/gup.c:1816:16: warning: variable 'ptem' set but not used
[-Wunused-but-set-variable]
  pte_t *ptep, *ptem;
                ^~~~

mm/mmap.c: In function 'acct_stack_growth':
mm/mmap.c:2322:16: warning: variable 'new_start' set but not used
[-Wunused-but-set-variable]
  unsigned long new_start;
                ^~~~~~~~~

Signed-off-by: Qian Cai <cai@lca.pw>
Link: https://lore.kernel.org/lkml/1570138596-11913-1-git-send-email-cai@lca.pw/
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Qian Cai 2019-10-03 17:36:36 -04:00 committed by Vasily Gorbik
parent 5c8e10f832
commit 51ce02216d
2 changed files with 9 additions and 3 deletions
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9
arch/s390/include/asm/hugetlb.h
View File

@ -12,8 +12,6 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#define is_hugepage_only_range(mm, addr, len) 0
#define hugetlb_free_pgd_range free_pgd_range
#define hugepages_supported() (MACHINE_HAS_EDAT1)
@ -23,6 +21,13 @@ pte_t huge_ptep_get(pte_t *ptep);
pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
static inline bool is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr,
unsigned long len)
{
return false;
}
/*
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.

3
arch/s390/include/asm/pgtable.h
View File

@ -1269,7 +1269,8 @@ static inline pte_t *pte_offset(pmd_t *pmd, unsigned long address)
#define pte_offset_kernel(pmd, address) pte_offset(pmd, address)
#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
#define pte_unmap(pte) do { } while (0)
static inline void pte_unmap(pte_t *pte) { }
static inline bool gup_fast_permitted(unsigned long start, unsigned long end)
{