AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

usb: udc: Convert use of __constant_cpu_to_leXX to cpu_to_leXX

Browse Source 
In big endian cases, the macro cpu_to_le{16,32} unfolds to __swab{16,32}
which provides special case for constants. In little endian cases,
__constant_cpu_to_le{16,32} and cpu_to_le{16,32} expand directly to
the same expression. So, replace __constant_cpu_to_le{16,32} with
cpu_to_le{16,32} with the goal of getting rid of the definition of
__constant_cpu_to_le{16,32} completely.

The semantic patch that performs this transformation is as follows:

@@expression x;@@

(
- __constant_cpu_to_le16(x)
+ cpu_to_le16(x)
|
- __constant_cpu_to_le32(x)
+ cpu_to_le32(x)
)

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Vaishali Thakkar 2015-06-10 16:04:25 +05:30 committed by Felipe Balbi
parent ad4676ab58
commit b5c03bffa6
2 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/gadget/udc/net2272.c
View File

@ -1826,9 +1826,9 @@ net2272_handle_stat0_irqs(struct net2272 *dev, u8 stat)
if (!e || u.r.wLength > 2)
goto do_stall;
if (net2272_ep_read(e, EP_RSPSET) & (1 << ENDPOINT_HALT))
status = __constant_cpu_to_le16(1);
status = cpu_to_le16(1);
else
status = __constant_cpu_to_le16(0);
status = cpu_to_le16(0);
/* don't bother with a request object! */
net2272_ep_write(&dev->ep[0], EP_IRQENB, 0);

2
drivers/usb/gadget/udc/pch_udc.c
View File

@ -1793,7 +1793,7 @@ static struct usb_request *pch_udc_alloc_request(struct usb_ep *usbep,
}
/* prevent from using desc. - set HOST BUSY */
dma_desc->status |= PCH_UDC_BS_HST_BSY;
dma_desc->dataptr = __constant_cpu_to_le32(DMA_ADDR_INVALID);
dma_desc->dataptr = cpu_to_le32(DMA_ADDR_INVALID);
req->td_data = dma_desc;
req->td_data_last = dma_desc;
req->chain_len = 1;