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From:   Bean Huo <huobean@gmail.com>
To:     alim.akhtar@samsung.com, avri.altman@wdc.com,
        asutoshd@codeaurora.org, jejb@linux.ibm.com,
        martin.petersen@oracle.com, stanley.chu@mediatek.com,
        beanhuo@micron.com, bvanassche@acm.org, tomas.winkler@intel.com,
        cang@codeaurora.org
Cc:     linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
        beanhuo@outlook.com
Subject: [RESENT PATCH v5 1/5] scsi: ufs: remove max_t in ufs_get_device_desc
Date:   Wed,  3 Jun 2020 11:19:55 +0200
Message-Id: <20200603091959.27618-2-huobean@gmail.com>
In-Reply-To: <20200603091959.27618-1-huobean@gmail.com>
References: <20200603091959.27618-1-huobean@gmail.com>
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From: Bean Huo <beanhuo@micron.com>

For the UFS device, the maximum descriptor size is 255, max_t called
in ufs_get_device_desc() is useless.

Signed-off-by: Bart van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
---
 drivers/scsi/ufs/ufshcd.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ad4fc829cbb2..2cf077ab9dfd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6903,14 +6903,11 @@ static void ufs_fixup_device_setup(struct ufs_hba *hba)
 static int ufs_get_device_desc(struct ufs_hba *hba)
 {
 	int err;
-	size_t buff_len;
 	u8 model_index;
 	u8 *desc_buf;
 	struct ufs_dev_info *dev_info = &hba->dev_info;
 
-	buff_len = max_t(size_t, hba->desc_size.dev_desc,
-			 QUERY_DESC_MAX_SIZE + 1);
-	desc_buf = kmalloc(buff_len, GFP_KERNEL);
+	desc_buf = kmalloc(QUERY_DESC_MAX_SIZE, GFP_KERNEL);
 	if (!desc_buf) {
 		err = -ENOMEM;
 		goto out;
-- 
2.17.1