Commit 61db0e0b authored by Mark Rutland's avatar Mark Rutland Committed by Catalin Marinas
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arm64/fpsimd: Remove unused fpsimd_force_sync_to_sve() 



There have been no users of fpsimd_force_sync_to_sve() since commit:

  bbc6172e ("arm64/fpsimd: SME no longer requires SVE register state")

Remove fpsimd_force_sync_to_sve().

Signed-off-by: default avatarMark 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: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 95507570

arch/arm64/include/asm/fpsimd.h

+0 −1
Original line number Diff line number Diff line
@@ -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);

arch/arm64/kernel/fpsimd.c

+0 −14
Original line number Diff line number Diff line
@@ -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.