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Date: Sat, 21 Nov 2009 13:39:22 GMT From: tip-bot for Ingo Molnar <mingo@...e.hu> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com, fweisbec@...il.com, tglx@...utronix.de, prasad@...ux.vnet.ibm.com, mingo@...e.hu Subject: [tip:perf/core] hw-breakpoints, x86: Fix modular KVM build Commit-ID: 68efa37df779b3e04280598e8b5b3a1919b65fee Gitweb: http://git.kernel.org/tip/68efa37df779b3e04280598e8b5b3a1919b65fee Author: Ingo Molnar <mingo@...e.hu> AuthorDate: Sat, 14 Nov 2009 01:35:29 +0100 Committer: Ingo Molnar <mingo@...e.hu> CommitDate: Sat, 14 Nov 2009 15:32:53 +0100 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@...il.com> Cc: Prasad <prasad@...ux.vnet.ibm.com> LKML-Reference: <1258114575-32655-1-git-send-email-fweisbec@...il.com> Signed-off-by: Ingo Molnar <mingo@...e.hu> --- arch/x86/include/asm/debugreg.h | 2 -- arch/x86/kernel/hw_breakpoint.c | 4 ++-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h index 0f6e92a..fdabd84 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 57dcee5..752daeb 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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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