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[1/5] powerpc: mm: Simplify page_is_ram by using memblock_is_memory

Message ID 20180222121516.23415-2-j.neuschaefer@gmx.net (mailing list archive)
State Superseded
Headers show
Series PPC32/ioremap: Use memblock API to check for RAM | expand

Commit Message

J. Neuschäfer Feb. 22, 2018, 12:15 p.m. UTC 
Instead of open-coding the search in page_is_ram, call memblock_is_memory.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---
 arch/powerpc/mm/mem.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index fe8c61149fb8..da4e1555d61d 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -85,13 +85,7 @@  int page_is_ram(unsigned long pfn)
 #ifndef CONFIG_PPC64	/* XXX for now */
 	return pfn < max_pfn;
 #else
-	unsigned long paddr = (pfn << PAGE_SHIFT);
-	struct memblock_region *reg;
-
-	for_each_memblock(memory, reg)
-		if (paddr >= reg->base && paddr < (reg->base + reg->size))
-			return 1;
-	return 0;
+	return memblock_is_memory(__pfn_to_phys(pfn));
 #endif
 }