lkml.org 
[lkml]   [2020]   [Dec]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 4/6] scsi: ufs: Remove d_wb_alloc_units from struct ufs_dev_info
Date
From: Bean Huo <beanhuo@micron.com>

d_wb_alloc_units only be used while WB probe, just used to confirm the
condition that "if bWriteBoosterBufferType is set to 01h but
dNumSharedWriteBoosterBufferAllocUnits is set to zero, the WriteBooster
feature is disabled". So, don't need to keep it in runtime.

Signed-off-by: Bean Huo <beanhuo@micron.com>
---
drivers/scsi/ufs/ufs.h | 1 -
drivers/scsi/ufs/ufshcd.c | 6 ++----
2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 45bebca29fdd..8ed342e43883 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -544,7 +544,6 @@ struct ufs_dev_info {
bool wb_buf_flush_enabled;
u8 wb_dedicated_lu;
u8 b_wb_buffer_type;
- u32 d_wb_alloc_units;

bool b_rpm_dev_flush_capable;
u8 b_presrv_uspc_en;
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 528c257df48c..0998e6103cd7 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7243,10 +7243,8 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
desc_buf[DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN];

if (dev_info->b_wb_buffer_type == WB_BUF_MODE_SHARED) {
- dev_info->d_wb_alloc_units =
- get_unaligned_be32(desc_buf +
- DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS);
- if (!dev_info->d_wb_alloc_units)
+ if (!get_unaligned_be32(desc_buf +
+ DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS))
goto wb_disabled;
} else {
for (lun = 0; lun < UFS_UPIU_MAX_WB_LUN_ID; lun++) {
--
2.17.1
\
 
 \ /
  Last update: 2020-12-11 15:08    [W:0.139 / U:0.456 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site