linux-kernel - Re: [PATCH 1/4] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN

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Date:	Tue, 3 Jun 2014 17:37:23 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Suravee Suthikulpanit <suravee.suthikulpanit@....com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Jacob Shin <jacob.w.shin@...il.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	xiakaixu <xiakaixu@...wei.com>
Subject: Re: [PATCH 1/4] perf/x86/amd: AMD support for bp_len >
 HW_BREAKPOINT_LEN_8

On Fri, May 30, 2014 at 08:55:55PM -0500, Suravee Suthikulpanit wrote:
> 
> 
> On 05/30/2014 08:33 AM, Frederic Weisbecker wrote:
> >>diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
> >>>index 4b528a9..145b009 100644
> >>>--- a/arch/x86/include/asm/debugreg.h
> >>>+++ b/arch/x86/include/asm/debugreg.h
> >>>@@ -114,5 +114,10 @@ static inline void debug_stack_usage_inc(void) { }
> >>>  static inline void debug_stack_usage_dec(void) { }
> >>>  #endif /* X86_64 */
> >>>
> >>>+#ifdef CONFIG_CPU_SUP_AMD
> >>>+extern void set_dr_addr_mask(unsigned long mask, int dr);
> >>>+#else
> >>>+static inline void set_dr_addr_mask(unsigned long mask, int dr) { }
> >>>+#endif
> >I see this symbol in the code but it's not defined anywhere in a Kconfig file.
> >Maybe you (or I) forgot to include a file in your patches?
> >
> >Thanks.
> 
> If you are referring to the CONFIG_CPU_SUP_AMD, this is in
> arch/x86/Kconfig.cpu

Ah I thought it was created in the patchset. Nevermind.
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