commit 79cb6879135b7441f0955ca3f86be8c8d21c7199
author Michael Ellerman <mpe@ellerman.id.au> Fri Sep 13 23:50:06 2019 +1000
committer Michael Ellerman <mpe@ellerman.id.au> Sat Sep 14 00:03:00 2019 +1000
tree c4587e3ae92905e970193614cdb5180b5fef9652
parent 1b7f3b6c43675ef2cfb9d8f48bde057794820f7c

powerpc/powernv: Fix build with IOMMU_API=n

The builds breaks when IOMMU_API=n, eg. skiroot_defconfig:

  arch/powerpc/platforms/powernv/npu-dma.c:96:28: error: 'get_gpu_pci_dev_and_pe' defined but not used
  arch/powerpc/platforms/powernv/npu-dma.c:126:13: error: 'pnv_npu_set_window' defined but not used

Fixes: b4d37a7b6934 ("powerpc/powernv: Remove unused pnv_npu_try_dma_set_bypass() function")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/npu-dma.c

diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index a570a24..b95b9e3 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -89,6 +89,7 @@
 }
 EXPORT_SYMBOL(pnv_pci_get_npu_dev);
 
+#ifdef CONFIG_IOMMU_API
 /*
  * Returns the PE assoicated with the PCI device of the given
  * NPU. Returns the linked pci device if pci_dev != NULL.
@@ -192,7 +193,6 @@
 	return 0;
 }
 
-#ifdef CONFIG_IOMMU_API
 /* Switch ownership from platform code to external user (e.g. VFIO) */
 static void pnv_npu_take_ownership(struct iommu_table_group *table_group)
 {