linux-kernel - Re: [PATCH 1/1] fentry: x86, cleanup function

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Message-ID: <5110276c-7a4f-77b9-6ffb-efcfa4734b60@suse.cz>
Date:   Wed, 15 Mar 2017 16:49:54 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     mingo@...hat.com, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 1/1] fentry: x86, cleanup function_hook uses

On 03/15/2017, 04:40 PM, Steven Rostedt wrote:
>> -#else
>> -# define function_hook	mcount
>> -EXPORT_SYMBOL(mcount)
>> -#endif
>> -
>>  /* All cases save the original rbp (8 bytes) */
>>  #ifdef CONFIG_FRAME_POINTER
>>  # ifdef CC_USING_FENTRY
>> @@ -297,6 +290,7 @@ trace:
>>  	jmp fgraph_trace
>>  END(function_hook)
>>  #endif /* CONFIG_DYNAMIC_FTRACE */
>> +EXPORT_SYMBOL(function_hook)
> 
> Under certain configs, this will fail the build. EXPORT_SYMBOL() does
> not take the function_hook as a macro nicely. See commit 5de0a8c0c24033.

Ok, thanks, forget about it then. I had the patch in my tree since Feb 3
2014, so I can finally drop it...


-- 
js
suse labs