linux-kernel - RE: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to ufshcd_send_bsg_uic

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Message-ID:
 <SA2PR16MB42515681881747A6B5C83352F4D52@SA2PR16MB4251.namprd16.prod.outlook.com>
Date: Fri, 7 Mar 2025 09:18:25 +0000
From: Arthur Simchaev <Arthur.Simchaev@...disk.com>
To: Bean Huo <huobean@...il.com>, "martin.petersen@...cle.com"
	<martin.petersen@...cle.com>, "quic_mapa@...cinc.com"
	<quic_mapa@...cinc.com>, "quic_cang@...cinc.com" <quic_cang@...cinc.com>
CC: Avri Altman <Avri.Altman@...disk.com>, Avi Shchislowski
	<Avi.Shchislowski@...disk.com>, "linux-scsi@...r.kernel.org"
	<linux-scsi@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "bvanassche@....org" <bvanassche@....org>
Subject: RE: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to
 ufshcd_send_bsg_uic_cmd



> -----Original Message-----
> From: Bean Huo <huobean@...il.com>
> Sent: Thursday, March 6, 2025 2:50 PM
> To: Arthur Simchaev <Arthur.Simchaev@...disk.com>;
> martin.petersen@...cle.com; quic_mapa@...cinc.com;
> quic_cang@...cinc.com
> Cc: Avri Altman <Avri.Altman@...disk.com>; Avi Shchislowski
> <Avi.Shchislowski@...disk.com>; linux-scsi@...r.kernel.org; linux-
> kernel@...r.kernel.org; bvanassche@....org
> Subject: Re: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to
> ufshcd_send_bsg_uic_cmd
> 
> 
> Arthur,
> 
> At present, we lack a user-space tool to initiate eye monitor measurements.
> Additionally, opening a channel for users in user land to send MP commands
> seems unsafe.
> 
> 
> Kind regards,
> Bean
> 

Hi Bean.

Actually,  the EOM tool was published two months ago
See the mail from Can Guo. The patch simply extends the UIC debugging functionality from user space.
I think it is quite safe to use hibern8 functionality for debugging purposes.

Regards
Arthur