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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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8
arch/powerpc/platforms/maple/setup.c
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@@ -94,7 +94,7 @@ static unsigned long maple_find_nvram_base(void)
return result;
}
static void maple_restart(char *cmd)
static void __noreturn maple_restart(char *cmd)
{
unsigned int maple_nvram_base;
const unsigned int *maple_nvram_offset, *maple_nvram_command;
@@ -119,9 +119,10 @@ static void maple_restart(char *cmd)
for (;;) ;
fail:
printk(KERN_EMERG "Maple: Manual Restart Required\n");
for (;;) ;
}
static void maple_power_off(void)
static void __noreturn maple_power_off(void)
{
unsigned int maple_nvram_base;
const unsigned int *maple_nvram_offset, *maple_nvram_command;
@@ -146,9 +147,10 @@ static void maple_power_off(void)
for (;;) ;
fail:
printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
for (;;) ;
}
static void maple_halt(void)
static void __noreturn maple_halt(void)
{
maple_power_off();
}