-----Original Message----- From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Sent: Wednesday, February 12, 2020 7:00 AM To: Jean Delvare <jdelvare@xxxxxxx>; Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx>; linux-acpi@xxxxxxxxxxxxxxx; Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx>; Guenter Roeck <linux@xxxxxxxxxxxx>; linux-watchdog@xxxxxxxxxxxxxxx; Moore, Robert <robert.moore@xxxxxxxxx>; Kaneda, Erik <erik.kaneda@xxxxxxxxx>; Tom Abraham <tabraham@xxxxxxxx>; Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Subject: [PATCH v2 1/3] ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro Sometimes it is useful to find the access_width field value in bytes and not in bits so add a helper that can be used for this purpose. Suggested-by: Jean Delvare <jdelvare@xxxxxxx> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Reviewed-by: Jean Delvare <jdelvare@xxxxxxx> --- include/acpi/actypes.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index a2583c2bc054..4defed58ea33 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -532,11 +532,12 @@ typedef u64 acpi_integer; strnlen (a, ACPI_NAMESEG_SIZE) == ACPI_NAMESEG_SIZE) /* - * Algorithm to obtain access bit width. + * Algorithm to obtain access bit or byte width. * Can be used with access_width of struct acpi_generic_address and access_size of * struct acpi_resource_generic_register. */ #define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + 2)) +#define ACPI_ACCESS_BYTE_WIDTH(size) (1 << ((size) - 1)) OK, we've taken this one into ACPICA. Thanks, Bob /******************************************************************************* * -- 2.25.0
