This is a note to let you know that I've just added the patch titled
ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-ux500-fix-prcmu_is_cpu_in_wfi-calculation.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f0e8faa7a5e894b0fc99d24be1b18685a92ea466 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed, 16 Nov 2016 16:20:37 +0100
Subject: ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
From: Arnd Bergmann <arnd@xxxxxxxx>
commit f0e8faa7a5e894b0fc99d24be1b18685a92ea466 upstream.
This function clearly never worked and always returns true,
as pointed out by gcc-7:
arch/arm/mach-ux500/pm.c: In function 'prcmu_is_cpu_in_wfi':
arch/arm/mach-ux500/pm.c:137:212: error: ?:
using integer constants in boolean context, the expression
will always evaluate to 'true' [-Werror=int-in-bool-context]
With the added braces, the condition actually makes sense.
Fixes: 34fe6f107eab ("mfd : Check if the other db8500 core is in WFI")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-ux500/pm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/mach-ux500/pm.c
+++ b/arch/arm/mach-ux500/pm.c
@@ -134,8 +134,8 @@ bool prcmu_pending_irq(void)
*/
bool prcmu_is_cpu_in_wfi(int cpu)
{
- return readl(PRCM_ARM_WFI_STANDBY) & cpu ? PRCM_ARM_WFI_STANDBY_WFI1 :
- PRCM_ARM_WFI_STANDBY_WFI0;
+ return readl(PRCM_ARM_WFI_STANDBY) &
+ (cpu ? PRCM_ARM_WFI_STANDBY_WFI1 : PRCM_ARM_WFI_STANDBY_WFI0);
}
/*
Patches currently in stable-queue which might be from arnd@xxxxxxxx are
queue-4.4/arm-ux500-fix-prcmu_is_cpu_in_wfi-calculation.patch
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