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scsi: ufs: Update comment in the function ufshcd_wb_probe() 

USFHCD supports both WriteBooster "LU dedicated buffer" mode and "shared
buffer" mode. Update the comment accordingly in the function
ufshcd_wb_probe().

Link: https://lore.kernel.org/r/20210119163847.20165-4-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bean Huo 2021-01-19 17:38:44 +01:00 committed by Martin K. Petersen
parent 06aea26676
commit ae1ce1fc61
1 changed files with 3 additions and 4 deletions
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7
drivers/scsi/ufs/ufshcd.c
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@ -7291,10 +7291,9 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
goto wb_disabled; goto wb_disabled;
/* /*
* WB may be supported but not configured while provisioning. * WB may be supported but not configured while provisioning. The spec
* The spec says, in dedicated wb buffer mode, * says, in dedicated wb buffer mode, a max of 1 lun would have wb
* a max of 1 lun would have wb buffer configured. * buffer configured.
* Now only shared buffer mode is supported.
*/ */
dev_info->b_wb_buffer_type = dev_info->b_wb_buffer_type =
desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; desc_buf[DEVICE_DESC_PARAM_WB_TYPE];