diff -drupN a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
--- a/arch/arm/mm/proc-macros.S	2018-08-06 17:23:04.000000000 +0300
+++ b/arch/arm/mm/proc-macros.S	2022-06-12 05:28:14.000000000 +0300
@@ -34,8 +34,7 @@
  * act_mm - get current->active_mm
  */
 	.macro	act_mm, rd
-	bic	\rd, sp, #8128
-	bic	\rd, \rd, #63
+	get_thread_info \rd
 	ldr	\rd, [\rd, #TI_TASK]
 	ldr	\rd, [\rd, #TSK_ACTIVE_MM]
 	.endm