From: Mike Travis Date: Tue, 14 Jan 2014 16:25:53 +0000 (-0600) Subject: x86/uv/nmi: Fix Sparse warnings X-Git-Tag: v3.14-rc1~24^2~3 X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=74c93f9d39b556ff9ac2340d568ad5caf8446c65;hp=fc8b13740b2978b34872650cc8e928392e3758aa;p=cascardo%2Flinux.git x86/uv/nmi: Fix Sparse warnings Make uv_register_nmi_notifier() and uv_handle_nmi_ping() static to address sparse warnings. Fix problem where uv_nmi_kexec_failed is unused when CONFIG_KEXEC is not defined. Signed-off-by: Mike Travis Reviewed-by: Hedi Berriche Cc: Russ Anderson Cc: Jason Wessel Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/r/20140114162551.480872353@asylum.americas.sgi.com Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h index 6b964a0b86d1..062921ef34e9 100644 --- a/arch/x86/include/asm/uv/uv.h +++ b/arch/x86/include/asm/uv/uv.h @@ -12,7 +12,6 @@ extern enum uv_system_type get_uv_system_type(void); extern int is_uv_system(void); extern void uv_cpu_init(void); extern void uv_nmi_init(void); -extern void uv_register_nmi_notifier(void); extern void uv_system_init(void); extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, @@ -26,7 +25,6 @@ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } static inline int is_uv_system(void) { return 0; } static inline void uv_cpu_init(void) { } static inline void uv_system_init(void) { } -static inline void uv_register_nmi_notifier(void) { } static inline const struct cpumask * uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, unsigned long start, unsigned long end, unsigned int cpu) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index ad0dc0428baf..d263b1307de1 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -980,7 +980,6 @@ void __init uv_system_init(void) uv_nmi_setup(); uv_cpu_init(); uv_scir_register_cpu_notifier(); - uv_register_nmi_notifier(); proc_mkdir("sgi_uv", NULL); /* register Legacy VGA I/O redirection handler */ diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c index 7486c21cbf0a..3a3c425275a0 100644 --- a/arch/x86/platform/uv/uv_nmi.c +++ b/arch/x86/platform/uv/uv_nmi.c @@ -74,7 +74,6 @@ static atomic_t uv_in_nmi; static atomic_t uv_nmi_cpu = ATOMIC_INIT(-1); static atomic_t uv_nmi_cpus_in_nmi = ATOMIC_INIT(-1); static atomic_t uv_nmi_slave_continue; -static atomic_t uv_nmi_kexec_failed; static cpumask_var_t uv_nmi_cpu_mask; /* Values for uv_nmi_slave_continue */ @@ -504,6 +503,7 @@ static void uv_nmi_touch_watchdogs(void) } #if defined(CONFIG_KEXEC) +static atomic_t uv_nmi_kexec_failed; static void uv_nmi_kdump(int cpu, int master, struct pt_regs *regs) { /* Call crash to dump system state */ @@ -634,7 +634,7 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs) /* * NMI handler for pulling in CPUs when perf events are grabbing our NMI */ -int uv_handle_nmi_ping(unsigned int reason, struct pt_regs *regs) +static int uv_handle_nmi_ping(unsigned int reason, struct pt_regs *regs) { int ret; @@ -651,7 +651,7 @@ int uv_handle_nmi_ping(unsigned int reason, struct pt_regs *regs) return ret; } -void uv_register_nmi_notifier(void) +static void uv_register_nmi_notifier(void) { if (register_nmi_handler(NMI_UNKNOWN, uv_handle_nmi, 0, "uv")) pr_warn("UV: NMI handler failed to register\n"); @@ -695,6 +695,5 @@ void uv_nmi_setup(void) uv_hub_nmi_per(cpu) = uv_hub_nmi_list[nid]; } BUG_ON(!alloc_cpumask_var(&uv_nmi_cpu_mask, GFP_KERNEL)); + uv_register_nmi_notifier(); } - -