[PATCH v2 01/21] openrisc: prefer memblock APIs returning virtual address

Mike Rapoport
2019-01-21T08:03:48Z

The allocation of the page tables memory in openrics uses
memblock_phys_alloc() and then converts the returned physical address to
virtual one. Use memblock_alloc_raw() and add a panic() if the allocation
fails.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/openrisc/mm/init.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index d157310..caeb418 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -105,7 +105,10 @@ static void __init map_ram(void)
}

/* Alloc one page for holding PTE's... */
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
+ pte = memblock_alloc_raw(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate page for PTEs\n",
+ __func__);
set_pmd(pme, __pmd(_KERNPG_TABLE + __pa(pte)));

/* Fill the newly allocated page with PTE'S */
--
2.7.4