From: Vaishali Thakkar <vthakkar1994@gmail.com>
To: Valentina Manea <valentina.manea.m@gmail.com>
Cc: Shuah Khan <shuah.kh@samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] usbip: vhci_hcd: Convert use of __constant_cpu_to_le16 to cpu_to_le16
Date: Wed, 19 Aug 2015 10:47:46 +0530 [thread overview]
Message-ID: <20150819051746.GA3250@localhost> (raw)
In big endian cases, macro cpu_to_le16 unfolds to __swab16 which
provides special case for constants. In little endian cases,
__constant_cpu_to_le16 and cpu_to_le16 expand directly to the
same expression. So, replace __constant_cpu_to_le16 with
cpu_to_le16 with the goal of getting rid of the definition of
__constant_cpu_to_le16 completely.
The semantic patch that performs this transformation is as follows:
@@expression x;@@
- __constant_cpu_to_le16(x)
+ cpu_to_le16(x)
Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
---
drivers/usb/usbip/vhci_hcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index e9ef1ec..42c8231 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -218,7 +218,7 @@ static inline void hub_descriptor(struct usb_hub_descriptor *desc)
memset(desc, 0, sizeof(*desc));
desc->bDescriptorType = USB_DT_HUB;
desc->bDescLength = 9;
- desc->wHubCharacteristics = __constant_cpu_to_le16(
+ desc->wHubCharacteristics = cpu_to_le16(
HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
desc->bNbrPorts = VHCI_NPORTS;
desc->u.hs.DeviceRemovable[0] = 0xff;
--
1.9.1
reply other threads:[~2015-08-19 5:17 UTC|newest]
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