[PATCH 3/4] xen: Drop CONFIG_XEN_AUTO_XLATE

[Juergen Gross <jgross@suse.com>]

CONFIG_XEN_AUTO_XLATE is referenced only in code built with CONFIG_XEN
enabled. As it is enabled for all architectures supporting Xen, it can
be just dropped.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 drivers/xen/Kconfig   |  6 ------
 drivers/xen/Makefile  |  2 +-
 drivers/xen/privcmd.c |  4 ++--
 include/xen/xen-ops.h | 22 ----------------------
 4 files changed, 3 insertions(+), 31 deletions(-)

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index cfb517cd77dc..32e35a8580ee 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -309,12 +309,6 @@ config XEN_EFI
 	def_bool y
 	depends on (ARM || ARM64 || X86_64) && EFI
 
-config XEN_AUTO_XLATE
-	def_bool y
-	depends on ARM || ARM64 || X86
-	help
-	  Support for auto-translated physmap guests.
-
 config XEN_ACPI
 	def_bool y
 	depends on X86 && ACPI
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index c0503f1c7d5b..6ce2e2a52d47 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -2,6 +2,7 @@
 obj-$(CONFIG_HOTPLUG_CPU)		+= cpu_hotplug.o
 obj-y	+= grant-table.o features.o balloon.o manage.o time.o
 obj-y	+= mem-reservation.o
+obj-y	+= xlate_mmu.o
 obj-y	+= events/
 obj-y	+= xenbus/
 
@@ -29,7 +30,6 @@ obj-$(CONFIG_XEN_PRIVCMD)		+= xen-privcmd.o
 obj-$(CONFIG_XEN_ACPI_PROCESSOR)	+= xen-acpi-processor.o
 obj-$(CONFIG_XEN_EFI)			+= efi.o
 obj-$(CONFIG_XEN_SCSI_BACKEND)		+= xen-scsiback.o
-obj-$(CONFIG_XEN_AUTO_XLATE)		+= xlate_mmu.o
 obj-$(CONFIG_XEN_PVCALLS_BACKEND)	+= pvcalls-back.o
 obj-$(CONFIG_XEN_PVCALLS_FRONTEND)	+= pvcalls-front.o
 xen-evtchn-y				:= evtchn.o
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 725a49a0eee7..7cfc28f1bb86 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -794,7 +794,7 @@ static long privcmd_ioctl_mmap_resource(struct file *file,
 		goto out;
 	}
 
-	if (IS_ENABLED(CONFIG_XEN_AUTO_XLATE) && !xen_pv_domain()) {
+	if (!xen_pv_domain()) {
 		unsigned int nr = DIV_ROUND_UP(kdata.num, XEN_PFN_PER_PAGE);
 		struct page **pages;
 		unsigned int i;
@@ -825,7 +825,7 @@ static long privcmd_ioctl_mmap_resource(struct file *file,
 	if (rc)
 		goto out;
 
-	if (IS_ENABLED(CONFIG_XEN_AUTO_XLATE) && !xen_pv_domain()) {
+	if (!xen_pv_domain()) {
 		rc = xen_remap_vma_range(vma, kdata.addr, kdata.num << PAGE_SHIFT);
 	} else {
 		unsigned int domid =
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 496e6013c689..15e0c3f4b7bb 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -59,7 +59,6 @@ static inline int xen_remap_pfn(struct vm_area_struct *vma, unsigned long addr,
 
 struct vm_area_struct;
 
-#ifdef CONFIG_XEN_AUTO_XLATE
 int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
 			      unsigned long addr,
 			      xen_pfn_t *gfn, int nr,
@@ -68,27 +67,6 @@ int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
 			      struct page **pages);
 int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma,
 			      int nr, struct page **pages);
-#else
-/*
- * These two functions are called from arch/x86/xen/mmu.c and so stubs
- * are needed for a configuration not specifying CONFIG_XEN_AUTO_XLATE.
- */
-static inline int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
-					    unsigned long addr,
-					    xen_pfn_t *gfn, int nr,
-					    int *err_ptr, pgprot_t prot,
-					    unsigned int domid,
-					    struct page **pages)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma,
-					    int nr, struct page **pages)
-{
-	return -EOPNOTSUPP;
-}
-#endif
 
 int xen_remap_vma_range(struct vm_area_struct *vma, unsigned long addr,
 			unsigned long len);
-- 
2.55.0