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arm64/sve: Move sve_free() into SVE code section

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If CONFIG_ARM64_SVE is not set:

    arch/arm64/kernel/fpsimd.c:294:13: warning: ‘sve_free’ defined but not used [-Wunused-function]

Fix this by moving sve_free() and __sve_free() into the existing section
protected by "#ifdef CONFIG_ARM64_SVE", now the last user outside that
section has been removed.

Fixes: a1259dd807 ("arm64/sve: Delay freeing memory in fpsimd_flush_thread()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/cd633284683c24cb9469f8ff429915aedf67f868.1652798894.git.geert+renesas@glider.be
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Geert Uytterhoeven 2022-05-17 16:52:03 +02:00 committed by Catalin Marinas
parent 696207d425
commit 8e1f78a921
1 changed files with 16 additions and 17 deletions
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33
arch/arm64/kernel/fpsimd.c
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@ -281,23 +281,6 @@ static bool have_cpu_fpsimd_context(void)
return !preemptible() && __this_cpu_read(fpsimd_context_busy);
}
/*
* Call __sve_free() directly only if you know task can't be scheduled
* or preempted.
*/
static void __sve_free(struct task_struct *task)
{
kfree(task->thread.sve_state);
task->thread.sve_state = NULL;
}
static void sve_free(struct task_struct *task)
{
WARN_ON(test_tsk_thread_flag(task, TIF_SVE));
__sve_free(task);
}
unsigned int task_get_vl(const struct task_struct *task, enum vec_type type)
{
return task->thread.vl[type];
@ -690,6 +673,22 @@ static void sve_to_fpsimd(struct task_struct *task)
}
#ifdef CONFIG_ARM64_SVE
/*
* Call __sve_free() directly only if you know task can't be scheduled
* or preempted.
*/
static void __sve_free(struct task_struct *task)
{
kfree(task->thread.sve_state);
task->thread.sve_state = NULL;
}
static void sve_free(struct task_struct *task)
{
WARN_ON(test_tsk_thread_flag(task, TIF_SVE));
__sve_free(task);
}
/*
* Return how many bytes of memory are required to store the full SVE