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authorIngo Molnar <mingo@kernel.org>2013-11-11 18:53:42 (GMT)
committerIngo Molnar <mingo@kernel.org>2013-11-11 18:53:42 (GMT)
commitb5dfcb09debc38582c3cb72a3c1a88b919b07f2d (patch)
treee74d7000baeab5c3800701c275971dd925cbfa08 /arch/x86
parente379ea82dd53a5cc8e3ac0b7899a8012006c712c (diff)
downloadlinux-b5dfcb09debc38582c3cb72a3c1a88b919b07f2d.tar.xz
Revert "x86/UV: Add uvtrace support"
This reverts commit 8eba18428ac926f436064ac281e76d36d51bd631. uv_trace() is not used by anything, nor is uv_trace_nmi_func, nor uv_trace_func. That's not how we do instrumentation code in the kernel: we add tracepoints, printk()s, etc. so that everyone not just those with magic kernel modules can debug a system. So remove this unused (and misguied) piece of code. Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Mike Travis <travis@sgi.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Hedi Berriche <hedi@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Jason Wessel <jason.wessel@windriver.com> Link: http://lkml.kernel.org/n/tip-tumfBffmr4jmnt8Gyxanoblg@git.kernel.org
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/uv/uv.h8
-rw-r--r--arch/x86/platform/uv/uv_nmi.c13
2 files changed, 1 insertions, 20 deletions
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 8b1283d..6b964a0 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -14,13 +14,6 @@ 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 void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
-extern void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
-#define uv_trace(fmt, ...) \
-do { \
- if (unlikely(uv_trace_func)) \
- (uv_trace_func)(__func__, __LINE__, fmt, ##__VA_ARGS__);\
-} while (0)
extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
struct mm_struct *mm,
unsigned long start,
@@ -33,7 +26,6 @@ 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_trace(void *fmt, ...) { }
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,
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 9b8ac60..2e863ad 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -1,5 +1,5 @@
/*
- * SGI NMI/TRACE support routines
+ * SGI NMI support routines
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -39,13 +39,6 @@
#include <asm/uv/uv_hub.h>
#include <asm/uv/uv_mmrs.h>
-void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
-EXPORT_SYMBOL(uv_trace_func);
-
-void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
-EXPORT_SYMBOL(uv_trace_nmi_func);
-
-
/*
* UV handler for NMI
*
@@ -599,10 +592,6 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
return NMI_DONE;
}
- /* Call possible NMI trace function */
- if (unlikely(uv_trace_nmi_func))
- (uv_trace_nmi_func)(reason, regs);
-
/* Indicate we are the first CPU into the NMI handler */
master = (atomic_read(&uv_nmi_cpu) == cpu);