[PATCH v5 3/3] drm/xe/xe_vm: Add error injection support to lock and prep

[Jonathan Cavitt <jonathan.cavitt@intel.com>]

Add error injection support to the function
vm_bind_ioctl_ops_lock_and_prep.  This necessitates marking the function
as noinline.

v2: Only noinline vm_bind_ioctl_ops_lock_and_prep when function error
injection is enabled (Brost)

v3: Use error_injectable to apply v2 change (Brost, Harrison)

v4: Move error_injectable function attribute (Brost)

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: John Harrison <john.c.harrison@intel.com>
---
 drivers/gpu/drm/xe/xe_vm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 5602e6cb4a72..37f88e157cd9 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -3205,6 +3205,7 @@ static int vm_bind_ioctl_ops_prefetch_ranges(struct xe_vm *vm, struct xe_vma_ops
 	return 0;
 }
 
+error_injectable
 static int vm_bind_ioctl_ops_lock_and_prep(struct drm_exec *exec,
 					   struct xe_vm *vm,
 					   struct xe_vma_ops *vops)
@@ -3224,6 +3225,7 @@ static int vm_bind_ioctl_ops_lock_and_prep(struct drm_exec *exec,
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(vm_bind_ioctl_ops_lock_and_prep, ERRNO);
 
 static void op_trace(struct xe_vma_op *op)
 {
-- 
2.43.0