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>

diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 12e1c96..9d85373 100644 (file)
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -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);
        }
 }