Re: [PATCH RESEND] ARM: trusted_foundations: fix compile error on non-SMP

From: Sergei Shtylyov
Date: Fri May 23 2014 - 14:24:38 EST


Hello.

On 05/23/2014 04:23 AM, Alexandre Courbot wrote:

The setup_max_cpus variable is only defined if CONFIG_SMP is set. Add
a preprocessor condition to avoid the following compilation error if
CONFIG_SMP is not set:

arch/arm/include/asm/trusted_foundations.h: In function 'register_trusted_foundations':
arch/arm/include/asm/trusted_foundations.h:57:2: error: 'setup_max_cpus' undeclared (first use in this function)

Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>
Reported-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
---
Hi Stephen,

This patch has been originally submitted through Russell's patch tracker,
where it has stayed untouched for ~3 weeks now. Considering that this
fixes a compilation error and should thus be made available quickly, and
that Tegra is the only user of Trusted Foundations, would you agree to take
it into your tree?

arch/arm/include/asm/trusted_foundations.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm/include/asm/trusted_foundations.h b/arch/arm/include/asm/trusted_foundations.h
index b5f7705..624e1d4 100644
--- a/arch/arm/include/asm/trusted_foundations.h
+++ b/arch/arm/include/asm/trusted_foundations.h
@@ -54,7 +54,9 @@ static inline void register_trusted_foundations(
*/
pr_err("No support for Trusted Foundations, continuing in degraded mode.\n");
pr_err("Secondary processors as well as CPU PM will be disabled.\n");
+#if IS_ENABLED(CONFIG_SMP)

if (IS_ENABLED(CONFIG_SMP))

setup_max_cpus = 0;
+#endif

WBR, Sergei

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