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authorMario Limonciello <mario.limonciello@amd.com>2025-04-07 13:36:55 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-27 11:11:27 +0100
commit66613b13cde9d10ebe8c548a13fa08f441e21437 (patch)
tree3e5bac0dfdc5fd3ed606fa01bef3dc284177c16e
parentb01a29a80cca28f0c7d0864e2d62fb9616051bfc (diff)
ACPI: Add missing prototype for non CONFIG_SUSPEND/CONFIG_X86 case
[ Upstream commit e1bdbbc98279164d910d2de82a745f090a8b249f ] acpi_register_lps0_dev() and acpi_unregister_lps0_dev() may be used in drivers that don't require CONFIG_SUSPEND or compile on !X86. Add prototypes for those cases. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202502191627.fRgoBwcZ-lkp@intel.com/ Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://patch.msgid.link/20250407183656.1503446-1-superm1@kernel.org Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--include/linux/acpi.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 4d5ee84c468ba..f826bb59556af 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -1110,13 +1110,13 @@ void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
u32 val_a, u32 val_b);
-#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
struct acpi_s2idle_dev_ops {
struct list_head list_node;
void (*prepare)(void);
void (*check)(void);
void (*restore)(void);
};
+#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
int acpi_get_lps0_constraint(struct acpi_device *adev);
@@ -1125,6 +1125,13 @@ static inline int acpi_get_lps0_constraint(struct device *dev)
{
return ACPI_STATE_UNKNOWN;
}
+static inline int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg)
+{
+ return -ENODEV;
+}
+static inline void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg)
+{
+}
#endif /* CONFIG_SUSPEND && CONFIG_X86 */
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
#else