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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
Subject: [PATCH v4 1/4] scsi: ufs: remove max_t in ufs_get_device_desc
Date: Fri, 29 May 2020 18:40:51 +0200	[thread overview]
Message-ID: <20200529164054.27552-2-huobean@gmail.com> (raw)
In-Reply-To: <20200529164054.27552-1-huobean@gmail.com>

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>
---
 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 aca50ed39844..f57acfbf9d60 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6876,14 +6876,11 @@ 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


  reply	other threads:[~2020-05-29 16:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29 16:40 [PATCH v4 0/4] scsi: ufs: cleanup ufs initialization Bean Huo
2020-05-29 16:40 ` Bean Huo [this message]
2020-05-29 17:37   ` [PATCH v4 1/4] scsi: ufs: remove max_t in ufs_get_device_desc Stanley Chu
2020-05-29 16:40 ` [PATCH v4 2/4] scsi: ufs: delete ufshcd_read_desc() Bean Huo
2020-05-29 16:40 ` [PATCH v4 3/4] scsi: ufs: cleanup ufs initialization path Bean Huo
2020-05-30  6:37   ` Avri Altman
2020-05-30 18:38     ` Bean Huo
2020-05-31 15:11     ` Bean Huo
2020-05-29 16:40 ` [PATCH v4 4/4] scsi: ufs: add compatibility with 3.1 UFS unit descriptor length Bean Huo
2020-05-30  6:56   ` Avri Altman
2020-05-30 18:33     ` Bean Huo
2020-05-30 19:43       ` Avri Altman

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