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-rw-r--r--drivers/acpi/acpica/acutils.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 2b3c5bd222f1..d49f5c7a20d9 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -251,7 +251,7 @@ extern const u8 _acpi_ctype[];
#define _ACPI_DI 0x04 /* '0'-'9' */
#define _ACPI_LO 0x02 /* 'a'-'z' */
#define _ACPI_PU 0x10 /* punctuation */
-#define _ACPI_SP 0x08 /* space */
+#define _ACPI_SP 0x08 /* space, tab, CR, LF, VT, FF */
#define _ACPI_UP 0x01 /* 'A'-'Z' */
#define _ACPI_XD 0x80 /* '0'-'9', 'A'-'F', 'a'-'f' */