ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (1dade3a7) · Commits · 戴 / test

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@suse.de> Cc: 4.16+ <stable@vger.kernel.org> # 4.16+ Signed-off-by:

include/acpi/actypes.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -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))

		/*******************************************************************************
		*