netdev - [PATCH v4 3/7] ARM: Use smp_processor_id() in vfp_pm

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Date:   Wed,  8 Sep 2021 12:06:01 -0700
From:   Keith Packard <keithpac@...zon.com>
To:     linux-kernel@...r.kernel.org
Cc:     Abbott Liu <liuwenliang@...wei.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Ben Segall <bsegall@...gle.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        bpf@...r.kernel.org, Christoph Lameter <cl@...ux.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Dennis Zhou <dennis@...nel.org>, devicetree@...r.kernel.org,
        Dietmar Eggemann <dietmar.eggemann@....com>,
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        Joe Perches <joe@...ches.com>,
        John Fastabend <john.fastabend@...il.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Keith Packard <keithpac@...zon.com>,
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        Linus Walleij <linus.walleij@...aro.org>,
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Subject: [PATCH v4 3/7] ARM: Use smp_processor_id() in vfp_pm_suspend instead of ti->cpu

These are equivalent when thread_info contains the CPU value, but when
THREAD_INFO_IN_TASK is enabled, cpu moves to task_struct. Using the macro
allows either.

Signed-off-by: Keith Packard <keithpac@...zon.com>
---
 arch/arm/vfp/vfpmodule.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 2cb355c1b5b7..d7a3818da671 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -458,16 +458,16 @@ static int vfp_pm_suspend(void)
 
 		/* disable, just in case */
 		fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN);
-	} else if (vfp_current_hw_state[ti->cpu]) {
+	} else if (vfp_current_hw_state[smp_processor_id()]) {
 #ifndef CONFIG_SMP
 		fmxr(FPEXC, fpexc | FPEXC_EN);
-		vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc);
+		vfp_save_state(vfp_current_hw_state[smp_processor_id()], fpexc);
 		fmxr(FPEXC, fpexc);
 #endif
 	}
 
 	/* clear any information we had about last context state */
-	vfp_current_hw_state[ti->cpu] = NULL;
+	vfp_current_hw_state[smp_processor_id()] = NULL;
 
 	return 0;
 }
-- 
2.33.0