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powerpc/rtas: move syscall filter setup into separate function

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Reduce conditionally compiled sections within rtas_initialize() by
moving the filter table initialization into its own function already
guarded by CONFIG_PPC_RTAS_FILTER. No behavior change intended.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210408140630.205502-5-nathanl@linux.ibm.com
This commit is contained in:
Nathan Lynch
2021-04-08 09:06:29 -05:00
committed by Michael Ellerman
parent 0ab1c929ae
commit 0649cdc823
1 changed files with 13 additions and 8 deletions
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21
arch/powerpc/kernel/rtas.c
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@@ -1051,6 +1051,14 @@ static bool block_rtas_call(int token, int nargs,
return true;
}
static void __init rtas_syscall_filter_init(void)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(rtas_filters); i++)
rtas_filters[i].token = rtas_token(rtas_filters[i].name);
}
#else
static bool block_rtas_call(int token, int nargs,
@@ -1059,6 +1067,10 @@ static bool block_rtas_call(int token, int nargs,
return false;
}
static void __init rtas_syscall_filter_init(void)
{
}
#endif /* CONFIG_PPC_RTAS_FILTER */
/* We assume to be passed big endian arguments */
@@ -1162,9 +1174,6 @@ void __init rtas_initialize(void)
unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
u32 base, size, entry;
int no_base, no_size, no_entry;
#ifdef CONFIG_PPC_RTAS_FILTER
int i;
#endif
/* Get RTAS dev node and fill up our "rtas" structure with infos
* about it.
@@ -1203,11 +1212,7 @@ void __init rtas_initialize(void)
rtas_last_error_token = rtas_token("rtas-last-error");
#endif
#ifdef CONFIG_PPC_RTAS_FILTER
for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) {
rtas_filters[i].token = rtas_token(rtas_filters[i].name);
}
#endif
rtas_syscall_filter_init();
}
int __init early_init_dt_scan_rtas(unsigned long node,