linux-kernel - Re: [PATCH v2 3/4] scsi: ufs: add trace events and dump prints for debug

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Date:	Sun, 22 Feb 2015 14:58:34 -0000
From:	"Gilad Broner" <gbroner@...eaurora.org>
To:	"Steven Rostedt" <rostedt@...dmis.org>
Cc:	"Gilad Broner" <gbroner@...eaurora.org>,
	james.bottomley@...senpartnership.com,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, santoshsy@...il.com,
	linux-scsi-owner@...r.kernel.org, subhashj@...eaurora.org,
	ygardi@...eaurora.org, draviv@...eaurora.org,
	"Lee Susman" <lsusman@...eaurora.org>,
	"Sujit Reddy Thumma" <sthumma@...eaurora.org>,
	"Vinayak Holikatti" <vinholikatti@...il.com>,
	"James E.J. Bottomley" <jbottomley@...allels.com>,
	"Ingo Molnar" <mingo@...hat.com>
Subject: Re: [PATCH v2 3/4] scsi: ufs: add trace events and dump prints for
 debug

>>  struct ufs_stats {
>> +#ifdef CONFIG_DEBUG_FS
>>  	bool enabled;
>>  	u64 **tag_stats;
>>  	int q_depth;
>>  	int err_stats[UFS_ERR_MAX];
>> +#endif
>
> Can any of the tracepoint code be called that references these when
> CONFIG_DEBUG_FS is not set? Because soon (possibly even this merge
> window), tracing will no longer depend on DEBUG_FS, because it will
> have its own filesystem.

Thanks for the update about this dependency.
None of these are used for the tracepoints, so I don't expect any problems.

Gilad.

-- 
Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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