linux-kernel - [PATCH 3.16 007/133] powerpc/mm: Build fix for non SPARSEMEM

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Date:   Wed, 22 Nov 2017 01:58:12 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Alexey Kardashevskiy" <aik@...abs.ru>,
        "Michael Ellerman" <mpe@...erman.id.au>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH 3.16 007/133] powerpc/mm: Build fix for non
 SPARSEMEM_VMEMAP config

3.16.51-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>

commit 7e7dc66adcf490a619bc3c7763a8cebadfba73e3 upstream.

We can use pfn_to_page() in realmode for other configs. Hence remove the
CONFIG_FLATMEM ifdef.

Fixes: 8e0861fa3c4e ("powerpc: Prepare to support kernel handling of IOMMU map/unmap")
Cc: Alexey Kardashevskiy <aik@...abs.ru>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
[mpe: Also fix up the #endif comment]
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/powerpc/mm/init_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -345,7 +345,7 @@ struct page *realmode_pfn_to_page(unsign
 }
 EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
 
-#elif defined(CONFIG_FLATMEM)
+#else
 
 struct page *realmode_pfn_to_page(unsigned long pfn)
 {
@@ -354,4 +354,4 @@ struct page *realmode_pfn_to_page(unsign
 }
 EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
 
-#endif /* CONFIG_SPARSEMEM_VMEMMAP/CONFIG_FLATMEM */
+#endif /* CONFIG_SPARSEMEM_VMEMMAP */