diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-03-28 16:03:45 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-05-02 14:18:57 +0300 |
| commit | a1ac2a9c4f98482e49305ab5551b7b32f9cac39b (patch) | |
| tree | a5821463ebb06d372f30253b01d243b1ad00a74b | |
| parent | e620d45065c7b5b8d6ae11217c09c09380103b83 (diff) | |
| download | linux-a1ac2a9c4f98482e49305ab5551b7b32f9cac39b.tar.xz | |
powerpc/book3e: drop BUG_ON() in map_kernel_page()
early_alloc_pgtable() never returns NULL as it panics on failure.
This patch drops the three BUG_ON() which check the non nullity
of early_alloc_pgtable() returned value.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/mm/pgtable-book3e.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/mm/pgtable-book3e.c b/arch/powerpc/mm/pgtable-book3e.c index 1032ef7aaf62..390a6d0b216d 100644 --- a/arch/powerpc/mm/pgtable-book3e.c +++ b/arch/powerpc/mm/pgtable-book3e.c @@ -98,20 +98,17 @@ int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) #ifndef __PAGETABLE_PUD_FOLDED if (pgd_none(*pgdp)) { pudp = early_alloc_pgtable(PUD_TABLE_SIZE); - BUG_ON(pudp == NULL); pgd_populate(&init_mm, pgdp, pudp); } #endif /* !__PAGETABLE_PUD_FOLDED */ pudp = pud_offset(pgdp, ea); if (pud_none(*pudp)) { pmdp = early_alloc_pgtable(PMD_TABLE_SIZE); - BUG_ON(pmdp == NULL); pud_populate(&init_mm, pudp, pmdp); } pmdp = pmd_offset(pudp, ea); if (!pmd_present(*pmdp)) { ptep = early_alloc_pgtable(PAGE_SIZE); - BUG_ON(ptep == NULL); pmd_populate_kernel(&init_mm, pmdp, ptep); } ptep = pte_offset_kernel(pmdp, ea); |