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authorMark Rutland <mark.rutland@arm.com>2025-04-09 17:39:59 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2025-04-09 18:06:30 +0100
commit61db0e0ba398a3726ca0e6a6399898d3d4c7b0f9 (patch)
treebb0994891f5d535f6525f6d2a2cbd0aa5420c7a5
parent95507570fb2f75544af69760cd5d8f48fc5c7f20 (diff)
arm64/fpsimd: Remove unused fpsimd_force_sync_to_sve()
There have been no users of fpsimd_force_sync_to_sve() since commit: bbc6172eefdb276b ("arm64/fpsimd: SME no longer requires SVE register state") Remove fpsimd_force_sync_to_sve(). Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20250409164010.3480271-3-mark.rutland@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r--arch/arm64/include/asm/fpsimd.h1
-rw-r--r--arch/arm64/kernel/fpsimd.c14
2 files changed, 0 insertions, 15 deletions
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index 564bc09b3e06..9c3e88ec873a 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -196,7 +196,6 @@ struct vl_info {
extern void sve_alloc(struct task_struct *task, bool flush);
extern void fpsimd_release_task(struct task_struct *task);
extern void fpsimd_sync_to_sve(struct task_struct *task);
-extern void fpsimd_force_sync_to_sve(struct task_struct *task);
extern void sve_sync_to_fpsimd(struct task_struct *task);
extern void sve_sync_from_fpsimd_zeropad(struct task_struct *task);
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 1ee5f330b8ed..1391a491f222 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -758,20 +758,6 @@ void sve_alloc(struct task_struct *task, bool flush)
kzalloc(sve_state_size(task), GFP_KERNEL);
}
-
-/*
- * Force the FPSIMD state shared with SVE to be updated in the SVE state
- * even if the SVE state is the current active state.
- *
- * This should only be called by ptrace. task must be non-runnable.
- * task->thread.sve_state must point to at least sve_state_size(task)
- * bytes of allocated kernel memory.
- */
-void fpsimd_force_sync_to_sve(struct task_struct *task)
-{
- fpsimd_to_sve(task);
-}
-
/*
* Ensure that task->thread.sve_state is up to date with respect to
* the user task, irrespective of when SVE is in use or not.