[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [XEN][PATCH v5 11/17] asm/smp.h: Fix circular dependency for device_tree.h and rwlock.h
Dynamic programming ops will modify the dt_host and there might be other function which are browsing the dt_host at the same time. To avoid the race conditions, adding rwlock for browsing the dt_host. But adding rwlock in device_tree.h causes following circular dependency: device_tree.h->rwlock.h->smp.h->asm/smp.h->device_tree.h To fix this, removed the "#include <xen/device_tree.h> and forward declared "struct dt_device_node". Signed-off-by: Vikram Garhwal <vikram.garhwal@xxxxxxx> --- xen/arch/arm/include/asm/smp.h | 3 ++- xen/arch/arm/smpboot.c | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/include/asm/smp.h b/xen/arch/arm/include/asm/smp.h index 8133d5c295..afe6129276 100644 --- a/xen/arch/arm/include/asm/smp.h +++ b/xen/arch/arm/include/asm/smp.h @@ -3,13 +3,14 @@ #ifndef __ASSEMBLY__ #include <xen/cpumask.h> -#include <xen/device_tree.h> #include <asm/current.h> #endif DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_mask); DECLARE_PER_CPU(cpumask_var_t, cpu_core_mask); +struct dt_device_node; + #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) #define smp_processor_id() get_processor_id() diff --git a/xen/arch/arm/smpboot.c b/xen/arch/arm/smpboot.c index 412ae22869..336a7d418b 100644 --- a/xen/arch/arm/smpboot.c +++ b/xen/arch/arm/smpboot.c @@ -11,6 +11,7 @@ #include <xen/cpumask.h> #include <xen/delay.h> #include <xen/domain_page.h> +#include <xen/device_tree.h> #include <xen/errno.h> #include <xen/init.h> #include <xen/mm.h> -- 2.17.1
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