linux-kernel - [PATCH v5 1/4] ufs: core: Remove redundant wb check

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Message-Id: <1670763911-8695-2-git-send-email-Arthur.Simchaev@wdc.com>
Date:   Sun, 11 Dec 2022 15:05:08 +0200
From:   Arthur Simchaev <Arthur.Simchaev@....com>
To:     martin.petersen@...cle.com
Cc:     beanhuo@...ron.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Arthur Simchaev <Arthur.Simchaev@....com>
Subject: [PATCH v5 1/4] ufs: core: Remove redundant wb check

We used to use the extended-feature field in the device descriptor,
as an indication that the device supports ufs2.2 or later.
Remove that as this check is specifically done few lines above.

Reviewed-by: Bart Van Assche <bvanassche@....org>
Reviewed-by: Bean Huo <beanhuo@...ron.com>
Signed-off-by: Arthur Simchaev <Arthur.Simchaev@....com>
---
 drivers/ufs/core/ufshcd.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 2dbe249..2e47c69 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -7608,10 +7608,6 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, const u8 *desc_buf)
 	     (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES)))
 		goto wb_disabled;
 
-	if (hba->desc_size[QUERY_DESC_IDN_DEVICE] <
-	    DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP + 4)
-		goto wb_disabled;
-
 	ext_ufs_feature = get_unaligned_be32(desc_buf +
 					DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP);
 
-- 
2.7.4