ACPI: remove acpi_os_readable(), acpi_os_writable() (fc955f67) · Commits · 戴 / test

drivers/acpi/osl.c

+0 −20

Original line number	Diff line number	Diff line
		@@ -890,26 +890,6 @@ u32 acpi_os_get_line(char *buffer)
		}
		#endif /* ACPI_FUTURE_USAGE */

		/* Assumes no unreadable holes inbetween */
		u8 acpi_os_readable(void *ptr, acpi_size len)
		{
		#if defined(__i386__) \|\| defined(__x86_64__)
		char tmp;
		return !__get_user(tmp, (char __user *)ptr)
		&& !__get_user(tmp, (char __user *)ptr + len - 1);
		#endif
		return 1;
		}

		#ifdef ACPI_FUTURE_USAGE
		u8 acpi_os_writable(void *ptr, acpi_size len)
		{
		/* could do dummy write (racy) or a kernel page table lookup.
		The later may be difficult at early boot when kmap doesn't work yet. */
		return 1;
		}
		#endif

		acpi_status acpi_os_signal(u32 function, void *info)
		{
		switch (function) {

+0 −6

Original line number	Diff line number	Diff line
		@@ -240,12 +240,6 @@ acpi_status
		acpi_os_validate_address(u8 space_id,
		acpi_physical_address address, acpi_size length);

		u8 acpi_os_readable(void *pointer, acpi_size length);

		#ifdef ACPI_FUTURE_USAGE
		u8 acpi_os_writable(void *pointer, acpi_size length);
		#endif

		u64 acpi_os_get_timer(void);

		acpi_status acpi_os_signal(u32 function, void *info);