[PATCH] powerpc/pseries/svm: Make mem_encrypt.h self contained

[Jason Gunthorpe]

Add the missing forward declarations and includes so it does not have
implicit dependencies. mem_encrypt.h is a public header imported by
drivers. Users should not have to guess what include files are needed.

Resolves a kbuild splat:

   In file included from drivers/iommu/generic_pt/fmt/iommu_amdv1.c:15:
   In file included from drivers/iommu/generic_pt/fmt/iommu_template.h:36:
   In file included from drivers/iommu/generic_pt/fmt/amdv1.h:23:
   In file included from include/linux/mem_encrypt.h:17:
>> arch/powerpc/include/asm/mem_encrypt.h:13:49: warning: declaration of 'struct device' will not be visible outside of this function [-Wvisibility]
      13 | static inline bool force_dma_unencrypted(struct device *dev)

Fixes: 879ced2bab1b ("iommupt: Add the AMD IOMMU v1 page table format")
Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511161358.rS5pSb3U-lkp@intel.com/
Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
---
 arch/powerpc/include/asm/mem_encrypt.h | 3 +++
 1 file changed, 3 insertions(+)

Joerg, can you pick this up too please?

diff --git a/arch/powerpc/include/asm/mem_encrypt.h b/arch/powerpc/include/asm/mem_encrypt.h
index 2f26b8fc8d297c..e355ca46fad933 100644
--- a/arch/powerpc/include/asm/mem_encrypt.h
+++ b/arch/powerpc/include/asm/mem_encrypt.h
@@ -9,6 +9,9 @@
 #define _ASM_POWERPC_MEM_ENCRYPT_H
 
 #include <asm/svm.h>
+#include <linux/types.h>
+
+struct device;
 
 static inline bool force_dma_unencrypted(struct device *dev)
 {

base-commit: 7e06063a43d317c1ca9278b6662555f687f43f03
-- 
2.43.0