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authorIngo Molnar <mingo@elte.hu>2009-11-14 01:35:29 +0100
committerIngo Molnar <mingo@elte.hu>2009-11-14 15:32:53 +0100
commit68efa37df779b3e04280598e8b5b3a1919b65fee (patch)
tree6954b55c7a22d9f13871771437407de13a6edfb4 /arch/x86
parent688bcaff291cf2fe2734e43f2793d4d05b850518 (diff)
hw-breakpoints, x86: Fix modular KVM build
This build error: arch/x86/kvm/x86.c:3655: error: implicit declaration of function 'hw_breakpoint_restore' Happens because in the CONFIG_KVM=m case there's no 'CONFIG_KVM' define in the kernel - it's CONFIG_KVM_MODULE in that case. Make the prototype available unconditionally. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <1258114575-32655-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/debugreg.h2
-rw-r--r--arch/x86/kernel/hw_breakpoint.c4
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
index 0f6e92af422..fdabd843576 100644
--- a/arch/x86/include/asm/debugreg.h
+++ b/arch/x86/include/asm/debugreg.h
@@ -96,9 +96,7 @@ static inline int hw_breakpoint_active(void)
extern void aout_dump_debugregs(struct user *dump);
-#ifdef CONFIG_KVM
extern void hw_breakpoint_restore(void);
-#endif
#endif /* __KERNEL__ */
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index 57dcee5fa95..752daebe91c 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -43,6 +43,7 @@
/* Per cpu debug control register value */
DEFINE_PER_CPU(unsigned long, dr7);
+EXPORT_PER_CPU_SYMBOL(dr7);
/* Per cpu debug address registers values */
static DEFINE_PER_CPU(unsigned long, cpu_debugreg[HBP_NUM]);
@@ -409,6 +410,7 @@ void aout_dump_debugregs(struct user *dump)
dump->u_debugreg[7] = dr7;
}
+EXPORT_SYMBOL_GPL(aout_dump_debugregs);
/*
* Release the user breakpoints used by ptrace
@@ -424,7 +426,6 @@ void flush_ptrace_hw_breakpoint(struct task_struct *tsk)
}
}
-#ifdef CONFIG_KVM
void hw_breakpoint_restore(void)
{
set_debugreg(__get_cpu_var(cpu_debugreg[0]), 0);
@@ -435,7 +436,6 @@ void hw_breakpoint_restore(void)
set_debugreg(__get_cpu_var(dr7), 7);
}
EXPORT_SYMBOL_GPL(hw_breakpoint_restore);
-#endif
/*
* Handle debug exception notifications.