diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 1538a6853822..1b4c45815695 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -362,7 +362,7 @@
  *
  * A less-safe version of the macros is provided for optional use if the
  * compiler uses excessive CPU stack (for example, this may happen in the
- * debug case if code optimzation is disabled.)
+ * debug case if code optimization is disabled.)
  */
 
 /* Exit trace helper macro */
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 0cd4f61d4248..f6656be81760 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -61,7 +61,7 @@ typedef __builtin_va_list va_list;
 #endif
 
 /*
- * Explictly mark intentional explicit fallthrough to silence
+ * Explicitly mark intentional explicit fallthrough to silence
  * -Wimplicit-fallthrough in GCC 7.1+.
  */
 
diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c
index 9ea2c0aeb86c..185b8c588e1d 100644
--- a/tools/power/acpi/common/cmfsize.c
+++ b/tools/power/acpi/common/cmfsize.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 /******************************************************************************
  *
- * Module Name: cfsize - Common get file size function
+ * Module Name: cmfsize - Common get file size function
  *
  * Copyright (C) 2000 - 2021, Intel Corp.
  *