linux/arch/powerpc/mm/book3s32/kuep.c
Christophe Leroy c89e632658 powerpc/32s: Fix setup_{kuap/kuep}() on SMP
On SMP, setup_kup() is also called from start_secondary().

start_secondary() is not an __init function.

Remove the __init marker from setup_kuep() and setup_kuap().

Fixes: 86f46f3432 ("powerpc/32s: Initialise KUAP and KUEP in C")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/42f4bd12b476942e4d5dc81c0e839d8871b20b1c.1624863319.git.christophe.leroy@csgroup.eu
2021-06-30 22:20:39 +10:00

21 lines
378 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
#include <asm/kup.h>
#include <asm/smp.h>
struct static_key_false disable_kuep_key;
void setup_kuep(bool disabled)
{
if (!disabled)
kuep_lock();
if (smp_processor_id() != boot_cpuid)
return;
if (disabled)
static_branch_enable(&disable_kuep_key);
else
pr_info("Activating Kernel Userspace Execution Prevention\n");
}