On March 3, 2020 12:41:44 PM PST, Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:
>g++ insists that function declaration must start with extern "C"
>(which asmlinkage expands to).
>
>gcc doesn't care.
>
>Signed-off-by: _Z6Alexeyv <adobriyan@xxxxxxxxx>
>---
>
> arch/x86/kernel/acpi/sleep.c | 2 +-
> arch/x86/kernel/acpi/sleep.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
>--- a/arch/x86/kernel/acpi/sleep.c
>+++ b/arch/x86/kernel/acpi/sleep.c
>@@ -43,7 +43,7 @@ unsigned long acpi_get_wakeup_address(void)
> *
> * Wrapper around acpi_enter_sleep_state() to be called by assmebly.
> */
>-acpi_status asmlinkage __visible x86_acpi_enter_sleep_state(u8 state)
>+asmlinkage acpi_status __visible x86_acpi_enter_sleep_state(u8 state)
> {
> return acpi_enter_sleep_state(state);
> }
>--- a/arch/x86/kernel/acpi/sleep.h
>+++ b/arch/x86/kernel/acpi/sleep.h
>@@ -19,4 +19,4 @@ extern void do_suspend_lowlevel(void);
>
> extern int x86_acpi_suspend_lowlevel(void);
>
>-acpi_status asmlinkage x86_acpi_enter_sleep_state(u8 state);
>+asmlinkage acpi_status x86_acpi_enter_sleep_state(u8 state);
Are you building the kernel with C++?!
--
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