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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: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Dave Martin 2018-04-11 17:59:06 +01:00 committed by Marc Zyngier
parent 93ee37c2a6
commit 09d1223a62
1 changed files with 8 additions and 10 deletions
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18
arch/arm64/kernel/fpsimd.c
View File

@ -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);
}
}