On Tue, Nov 7, 2017 at 11:48 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: > The XPS13 workaround caused a build regression in configurations without > CONFIG_ACPI_SLEEP. > > drivers/acpi/sleep.c:95:5: error: redefinition of 'acpi_target_system_state' > u32 acpi_target_system_state(void) > ^~~~~~~~~~~~~~~~~~~~~~~~ > In file included from include/linux/acpi.h:44:0, > from drivers/acpi/sleep.c:20: > include/acpi/acpi_bus.h:661:19: note: previous definition of 'acpi_target_system_state' was here > static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } > ^~~~~~~~~~~~~~~~~~~~~~~~ > drivers/acpi/sleep.c:495:13: error: 'acpi_pm_end' defined but not used [-Werror=unused-function] > > This adds back the #ifdef checks required to make it build cleanly again. > The patch that caused the regression is marked for backports to v4.13, the > same should apply to this one. > > Fixes: 8d7a4756fef9 ("ACPI / PM: Blacklist Low Power S0 Idle _DSM for Dell XPS13 9360") > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> This should have been fixed in my tree already. Unfortunately, linux-next picked up an earlier version with this issue. Thanks, Rafael