[v3,05/28] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag()

Message ID 1507660725-7986-6-git-send-email-Dave.Martin@arm.com
State New
Headers show
Series
  • ARM Scalable Vector Extension (SVE)
Related show

Commit Message

Dave Martin Oct. 10, 2017, 6:38 p.m.
The existing FPSIMD context switch code contains a couple of
instances of {set,clear}_ti_thread(task_thread_info(task)).  Since
there are thread flag manipulators that operate directly on
task_struct, this verbosity isn't strictly needed.

For consistency, this patch simplifies the affected calls.  This
should have no impact on behaviour.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm64/kernel/fpsimd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Catalin Marinas Oct. 11, 2017, 2:19 p.m. | #1
On Tue, Oct 10, 2017 at 07:38:22PM +0100, Dave P Martin wrote:
> The existing FPSIMD context switch code contains a couple of
> instances of {set,clear}_ti_thread(task_thread_info(task)).  Since
> there are thread flag manipulators that operate directly on
> task_struct, this verbosity isn't strictly needed.
> 
> For consistency, this patch simplifies the affected calls.  This
> should have no impact on behaviour.
> 
> Signed-off-by: Dave Martin <Dave.Martin@arm.com>
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

Patch

diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 5d547de..7a865c8 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -159,11 +159,9 @@  void fpsimd_thread_switch(struct task_struct *next)
 
 		if (__this_cpu_read(fpsimd_last_state) == st
 		    && st->cpu == smp_processor_id())
-			clear_ti_thread_flag(task_thread_info(next),
-					     TIF_FOREIGN_FPSTATE);
+			clear_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);
 		else
-			set_ti_thread_flag(task_thread_info(next),
-					   TIF_FOREIGN_FPSTATE);
+			set_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);
 	}
 }