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arm64: alternatives: add __init/__initconst to some functions/variables

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apply_alternatives_vdso(), __apply_alternatives_multi_stop() and
kernel_alternatives are not needed after booting, so mark the two
functions as __init and the var as __initconst.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20221202161859.2228-1-jszhang@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jisheng Zhang 2022-12-03 00:18:59 +08:00 committed by Will Deacon
parent d503d01e50
commit 67bc5b2d6d
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/kernel/alternative.c
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@ -196,7 +196,7 @@ static void __apply_alternatives(const struct alt_region *region,
}
}
static void apply_alternatives_vdso(void)
static void __init apply_alternatives_vdso(void)
{
struct alt_region region;
const struct elf64_hdr *hdr;
@ -220,7 +220,7 @@ static void apply_alternatives_vdso(void)
__apply_alternatives(&region, false, &all_capabilities[0]);
}
static const struct alt_region kernel_alternatives = {
static const struct alt_region kernel_alternatives __initconst = {
.begin = (struct alt_instr *)__alt_instructions,
.end = (struct alt_instr *)__alt_instructions_end,
};
@ -229,7 +229,7 @@ static const struct alt_region kernel_alternatives = {
* We might be patching the stop_machine state machine, so implement a
* really simple polling protocol here.
*/
static int __apply_alternatives_multi_stop(void *unused)
static int __init __apply_alternatives_multi_stop(void *unused)
{
/* We always have a CPU 0 at this point (__init) */
if (smp_processor_id()) {