[RFC PATCH v4 1/4] x86/sgx: Export sgx_encl_eaug_page

[Haitao Huang <haitao.huang@linux.intel.com>]

This function will be called by both the page fault handler
and the fops->fadvise callback.

Signed-off-by: Haitao Huang <haitao.huang@linux.intel.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
---
 arch/x86/kernel/cpu/sgx/encl.c | 4 ++--
 arch/x86/kernel/cpu/sgx/encl.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/sgx/encl.c b/arch/x86/kernel/cpu/sgx/encl.c
index 2a0e90fe2abc..0185c5ab48dd 100644
--- a/arch/x86/kernel/cpu/sgx/encl.c
+++ b/arch/x86/kernel/cpu/sgx/encl.c
@@ -311,8 +311,8 @@ struct sgx_encl_page *sgx_encl_load_page(struct sgx_encl *encl,
  * Returns: Appropriate vm_fault_t: VM_FAULT_NOPAGE when PTE was installed
  * successfully, VM_FAULT_SIGBUS or VM_FAULT_OOM as error otherwise.
  */
-static vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
-				     struct sgx_encl *encl, unsigned long addr)
+vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
+			      struct sgx_encl *encl, unsigned long addr)
 {
 	vm_fault_t vmret = VM_FAULT_SIGBUS;
 	struct sgx_pageinfo pginfo = {0};
diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h
index f94ff14c9486..9f19b06c3ae3 100644
--- a/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@ -125,5 +125,7 @@ struct sgx_encl_page *sgx_encl_load_page(struct sgx_encl *encl,
 					 unsigned long addr);
 struct sgx_va_page *sgx_encl_grow(struct sgx_encl *encl, bool reclaim);
 void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page);
+vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
+			      struct sgx_encl *encl, unsigned long addr);
 
 #endif /* _X86_ENCL_H */
-- 
2.25.1