1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 5e56fc81..a65ca6c2 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -309,6 +309,11 @@ int gk20a_restore_registers(struct gk20a *g)
         return 0;
 }
 
+void __gk20a_warn_on_no_regs(void)
+{
+        WARN_ONCE(1, "Attempted access to GPU regs after unmapping!");
+}
+
 static void kunmap_and_free_iopage(void **kvaddr, struct page **page)
 {
         if (*kvaddr) {