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sparc32: fix build with STRICT_MM_TYPECHECKS

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Based on recent thread on linux-arch (some weeks ago) I
decided to check how much work was required to build sparc32
with STRICT_MM_TYPECHECKS enabled.

The resulting binary (checked srmmu.o) was to my suprise smaller with
STRICT_MM_TYPECHECKS defined, than without.

As I have no working gear to test sparc32 bits at for the moment,
I did not enable STRICT_MM_TYPECHECKS - but was tempeted to do so.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg
2016-04-22 19:41:06 +02:00
committed by David S. Miller
parent 3c46e2d61c
commit 6e6e41879e
5 changed files with 14 additions and 11 deletions
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15
arch/sparc/mm/srmmu.c
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@@ -107,7 +107,12 @@ static inline int srmmu_pmd_none(pmd_t pmd)
/* XXX should we hyper_flush_whole_icache here - Anton */
static inline void srmmu_ctxd_set(ctxd_t *ctxp, pgd_t *pgdp)
{ set_pte((pte_t *)ctxp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pgdp) >> 4))); }
{
pte_t pte;
pte = __pte((SRMMU_ET_PTD | (__nocache_pa(pgdp) >> 4)));
set_pte((pte_t *)ctxp, pte);
}
void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
@@ -116,8 +121,8 @@ void pmd_set(pmd_t *pmdp, pte_t *ptep)
ptp = __nocache_pa((unsigned long) ptep) >> 4;
for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4);
set_pte((pte_t *)&pmdp->pmdv[i], __pte(SRMMU_ET_PTD | ptp));
ptp += (SRMMU_REAL_PTRS_PER_PTE * sizeof(pte_t) >> 4);
}
}
@@ -128,8 +133,8 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep)
ptp = page_to_pfn(ptep) << (PAGE_SHIFT-4); /* watch for overflow */
for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4);
set_pte((pte_t *)&pmdp->pmdv[i], __pte(SRMMU_ET_PTD | ptp));
ptp += (SRMMU_REAL_PTRS_PER_PTE * sizeof(pte_t) >> 4);
}
}