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| author |   Sean Christopherson <sean.j.christopherson@intel.com> | 2019-11-26 08:54:16 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-12-10 10:15:48 +0100 |
| commit | 8c53b318b222eff55d2900b554094a099b1a30f6 (patch) | |
| tree | eeee7f57178086e00a21befe9bd4c577230218dc /drivers/acpi/sleep.c | |
| parent | x86/ACPI/sleep: Remove an unnecessary include of asm/realmode.h (diff) | |
| download | wireguard-linux-8c53b318b222eff55d2900b554094a099b1a30f6.tar.xz wireguard-linux-8c53b318b222eff55d2900b554094a099b1a30f6.zip | |
ACPI/sleep: Convert acpi_wakeup_address into a function
Convert acpi_wakeup_address from a raw variable into a function so that
x86 can wrap its dereference of the real mode boot header in a function
instead of broadcasting it to the world via a #define. This sets the
stage for a future patch to move x86's definition of the new function,
acpi_get_wakeup_address(), out of asm/acpi.h and thus break acpi.h's
dependency on asm/realmode.h.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Link: https://lkml.kernel.org/r/20191126165417.22423-12-sean.j.christopherson@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/acpi/sleep.c')
| -rw-r--r-- | drivers/acpi/sleep.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 6747a279621b..439880629839 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -61,8 +61,11 @@ static struct notifier_block tts_notifier = { static int acpi_sleep_prepare(u32 acpi_state) { #ifdef CONFIG_ACPI_SLEEP + unsigned long acpi_wakeup_address; + /* do we have a wakeup address for S2 and S3? */ if (acpi_state == ACPI_STATE_S3) { + acpi_wakeup_address = acpi_get_wakeup_address(); if (!acpi_wakeup_address) return -EFAULT; acpi_set_waking_vector(acpi_wakeup_address); |