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From: Bart Van Assche <bvanassche@acm.org>
To: "Bao D. Nguyen" <quic_nguyenb@quicinc.com>,
	Arthur Simchaev <Arthur.Simchaev@sandisk.com>,
	"quic_cang@quicinc.com" <quic_cang@quicinc.com>,
	"quic_nitirawa@quicinc.com" <quic_nitirawa@quicinc.com>,
	"avri.altman@wdc.com" <avri.altman@wdc.com>,
	"peter.wang@mediatek.com" <peter.wang@mediatek.com>,
	"manivannan.sadhasivam@linaro.org"
	<manivannan.sadhasivam@linaro.org>,
	"minwoo.im@samsung.com" <minwoo.im@samsung.com>,
	"adrian.hunter@intel.com" <adrian.hunter@intel.com>,
	"martin.petersen@oracle.com" <martin.petersen@oracle.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Bean Huo <beanhuo@micron.com>,
	Keoseong Park <keosung.park@samsung.com>,
	Ziqi Chen <quic_ziqichen@quicinc.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Gwendal Grignou <gwendal@chromium.org>,
	Eric Biggers <ebiggers@google.com>,
	open list <linux-kernel@vger.kernel.org>,
	"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
	<linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
	<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v4 1/1] scsi: ufs: core: add device level exception support
Date: Fri, 28 Mar 2025 07:02:20 -0700	[thread overview]
Message-ID: <989e695e-e6a4-4427-9041-e39ecf5b5674@acm.org> (raw)
In-Reply-To: <4cb20c80-9bb0-e147-e3c0-467f4c8828ba@quicinc.com>

On 3/27/25 5:45 PM, Bao D. Nguyen wrote:
> Thanks Bart. How about we change the current utp_upiu_query_v4_0 to
> 
> struct utp_upiu_query_v4_0 {
>          __u8 opcode;
>          __u8 idn;
>          __u8 index;
>          __u8 selector;
>          __u8 cmd_specifics[8];
>          /* private: */
>          __be32 reserved;
> };
> 
> Depending on the opcode/transaction, the cmd_specifics[] can be type 
> casted to access the LENGTH, FLAG_VALUE, VALUE[0:63] fields of the QUERY 
> UPIU. The __u8 array[8] would also prevent the compiler padding to the 
> data.

Are there any user space applications that use the osf3/4/5/6/7 member
names? Has it been considered to preserve these by introducing a union?

Thanks,

Bart.

  reply	other threads:[~2025-03-28 14:02 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-21  3:18 [PATCH v4 1/1] scsi: ufs: core: add device level exception support Bao D. Nguyen
2025-03-21 16:31 ` Bart Van Assche
2025-03-25 16:33 ` Arthur Simchaev
2025-03-25 22:15   ` Bao D. Nguyen
2025-03-26  7:30     ` Arthur Simchaev
2025-03-26 23:28       ` Bao D. Nguyen
2025-03-26 10:49     ` Bart Van Assche
2025-03-26 23:47       ` Bao D. Nguyen
2025-03-27 11:36         ` Bart Van Assche
2025-03-27 21:45           ` Bao D. Nguyen
2025-03-28 14:02             ` Bart Van Assche [this message]
2025-04-02  7:49               ` manivannan.sadhasivam
2025-04-02 19:00                 ` Bao D. Nguyen
2025-04-06 18:23                   ` manivannan.sadhasivam

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