From: Zhihao Cheng <chengzhihao1@huawei.com>
To: <mathias.nyman@intel.com>, <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<chengzhihao1@huawei.com>, <yi.zhang@huawei.com>,
<yukuai3@huawei.com>
Subject: [PATCH] usb: xhci: Remove useless variable
Date: Sat, 15 May 2021 16:46:47 +0800 [thread overview]
Message-ID: <20210515084647.179580-1-chengzhihao1@huawei.com> (raw)
Fix the following gcc warning:
drivers/usb/host/xhci.c:1349:15: warning: variable ‘len’ set but not
used [-Wunused-but-set-variable ]
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
---
drivers/usb/host/xhci.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index ca9385d22f68..b38a14ef2e15 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1346,7 +1346,6 @@ static bool xhci_urb_temp_buffer_required(struct usb_hcd *hcd,
static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb)
{
- unsigned int len;
unsigned int buf_len;
enum dma_data_direction dir;
@@ -1362,10 +1361,10 @@ static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb)
dir);
if (usb_urb_dir_in(urb))
- len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs,
- urb->transfer_buffer,
- buf_len,
- 0);
+ sg_pcopy_from_buffer(urb->sg, urb->num_sgs,
+ urb->transfer_buffer,
+ buf_len,
+ 0);
urb->transfer_flags &= ~URB_DMA_MAP_SINGLE;
kfree(urb->transfer_buffer);
--
2.25.4
next reply other threads:[~2021-05-15 8:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-15 8:46 Zhihao Cheng [this message]
2021-05-15 8:51 ` [PATCH] usb: xhci: Remove useless variable Greg KH
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