linux-kernel - Re: [PATCH v3] scsi: ufs: WB is only available on LUN #0 to #7

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Date:   Thu, 14 Jan 2021 23:08:25 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     kernel-team@...roid.com, Jaegeuk Kim <jaegeuk@...nel.org>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        Jaegeuk Kim <jaegeuk@...gle.com>, alim.akhtar@...sung.com,
        avri.altman@....com, bvanassche@....org, cang@...eaurora.org,
        stanley.chu@...iatek.com
Subject: Re: [PATCH v3] scsi: ufs: WB is only available on LUN #0 to #7

On Mon, 11 Jan 2021 01:59:27 -0800, Jaegeuk Kim wrote:

> Kernel stack violation when getting unit_descriptor/wb_buf_alloc_units from
> rpmb lun. The reason is the unit descriptor length is different per LU.
> 
> The lengh of Normal LU is 45, while the one of rpmb LU is 35.
> 
> int ufshcd_read_desc_param(struct ufs_hba *hba, ...)
> {
> 	param_offset=41;
> 	param_size=4;
> 	buff_len=45;
> 	...
> 	buff_len=35 by rpmb LU;
> 
> [...]

Applied to 5.12/scsi-queue, thanks!

[1/1] scsi: ufs: WB is only available on LUN #0 to #7
      https://git.kernel.org/mkp/scsi/c/a2fca52ee640

-- 
Martin K. Petersen	Oracle Linux Engineering