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 <acour...@nvidia.com> Reported-by: Russell King <rmk+ker...@arm.linux.org.uk> --- 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) setup_max_cpus = 0; +#endif cpu_idle_poll_ctrl(true); } -- 1.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/