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powerpc: Make ppc_md.{halt, restart} __noreturn

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powernv marks it's halt and restart calls as __noreturn. However,
ppc_md does not have this annotation. Add the annotation to ppc_md,
and then to every halt/restart function that is missing it.

Additionally, I have verified that all of these functions do not
return. Occasionally I have added a spin loop to be sure.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Daniel Axtens
2016-07-12 10:54:52 +10:00
committed by Michael Ellerman
parent 62c2c5cf38
commit 95ec77c06e
33 changed files with 60 additions and 55 deletions
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4
arch/powerpc/kernel/rtas.c
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@@ -685,7 +685,7 @@ int rtas_set_indicator_fast(int indicator, int index, int new_value)
return rc;
}
void rtas_restart(char *cmd)
void __noreturn rtas_restart(char *cmd)
{
if (rtas_flash_term_hook)
rtas_flash_term_hook(SYS_RESTART);
@@ -704,7 +704,7 @@ void rtas_power_off(void)
for (;;);
}
void rtas_halt(void)
void __noreturn rtas_halt(void)
{
if (rtas_flash_term_hook)
rtas_flash_term_hook(SYS_HALT);