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Commit 09d1223a authored by Dave Martin's avatar Dave Martin Committed by Marc Zyngier
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arm64: Use update{,_tsk}_thread_flag() 



This patch uses the new update_thread_flag() helpers to simplify a
couple of if () set; else clear; constructs.

No functional change.

Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Acked-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 93ee37c2

arch/arm64/kernel/fpsimd.c

+8 −10
Original line number Diff line number Diff line
@@ -618,10 +618,8 @@ int sve_set_vector_length(struct task_struct *task, 
	task->thread.sve_vl = vl;



out:

	if (flags & PR_SVE_VL_INHERIT)

		set_tsk_thread_flag(task, TIF_SVE_VL_INHERIT);

	else

		clear_tsk_thread_flag(task, TIF_SVE_VL_INHERIT);

	update_tsk_thread_flag(task, TIF_SVE_VL_INHERIT,

			       flags & PR_SVE_VL_INHERIT);



	return 0;

}
@@ -910,12 +908,12 @@ void fpsimd_thread_switch(struct task_struct *next) 
		 * the TIF_FOREIGN_FPSTATE flag so the state will be loaded

		 * upon the next return to userland.

		 */

		if (__this_cpu_read(fpsimd_last_state.st) ==

			&next->thread.uw.fpsimd_state

		    && next->thread.fpsimd_cpu == smp_processor_id())

			clear_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);

		else

			set_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);

		bool wrong_task = __this_cpu_read(fpsimd_last_state.st) !=

					&next->thread.uw.fpsimd_state;

		bool wrong_cpu = next->thread.fpsimd_cpu != smp_processor_id();



		update_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE,

				       wrong_task || wrong_cpu);

	}

}