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From:   Mike Rapoport <rppt@linux.ibm.com>
To:     linux-mm@kvack.org
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Subject: [PATCH v2 01/21] openrisc: prefer memblock APIs returning virtual address
Date:   Mon, 21 Jan 2019 10:03:48 +0200
In-Reply-To: <1548057848-15136-1-git-send-email-rppt@linux.ibm.com>
References: <1548057848-15136-1-git-send-email-rppt@linux.ibm.com>
Message-Id: <1548057848-15136-2-git-send-email-rppt@linux.ibm.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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