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From: Bart Van Assche <bvanassche@acm.org>
To: Can Guo <quic_cang@quicinc.com>, Rohit Ner <rohitner@google.com>,
	Bean Huo <beanhuo@micron.com>,
	Stanley Chu <stanley.chu@mediatek.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Avri Altman <avri.altman@wdc.com>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] scsi: ufs: core: Fix setup_xfer_req invocation
Date: Wed, 21 Feb 2024 09:55:06 -0800	[thread overview]
Message-ID: <0f959cca-ad29-4b8b-966d-55eb37156ef8@acm.org> (raw)
In-Reply-To: <c7635c10-1724-4db5-9568-d554e1c64f72@quicinc.com>

On 2/21/24 01:13, Can Guo wrote:
> I am going to push some BUG fixes for Qualcomm UFSHCI MCQ engine, one of 
> which would count on a vops in ufshcd_send_command(). My original plan 
> was to add a new vops.mcq_setup_xfer_req() to differentiate from the 
> existing one used in legacy mode. But if Rohit moves the existing 
> .setup_xfer_req() up, I can use it instead of introducing the new one.

Hi Can,

If an if-statement can be avoided in the hot path by introducing a new
callback pointer for MCQ code then I prefer the approach of introducing
a new callback instead of moving the setup_xfer_req() call.

Thanks,

Bart.


  reply	other threads:[~2024-02-21 17:55 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-20  9:08 [PATCH] scsi: ufs: core: Fix setup_xfer_req invocation Rohit Ner
2024-02-20 17:21 ` Bart Van Assche
     [not found]   ` <CAGt9f=Qd8P4OUuT=KJQqpwJPYVB7zeCJjWn_4CTiXWce6ZRERg@mail.gmail.com>
2024-02-20 18:19     ` Bart Van Assche
2024-02-21  9:13   ` Can Guo
2024-02-21 17:55     ` Bart Van Assche [this message]
2024-02-22  2:05       ` Can Guo
2024-02-22  3:09         ` Bart Van Assche
2024-02-22  8:27     ` Rohit Ner
2024-02-22 15:25       ` Bart Van Assche
2025-01-07 10:23         ` Rohit Ner

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