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Revert "mt76: usb: use full intermediate buffer in mt76u_copy"

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This reverts commit 5e1e5b75d6.
This commit is contained in:
Felix Fietkau
2019-07-12 15:51:58 +02:00
parent 0ce46825b8
commit 3b08966d99
1 changed files with 7 additions and 12 deletions
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usb.c
+7 -12
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@@ -160,24 +160,19 @@ static void mt76u_copy(struct mt76_dev *dev, u32 offset,
const void *data, int len)
{
struct mt76_usb *usb = &dev->usb;
int ret, req_len;
const u32 *val = data;
int i, ret;
mutex_lock(&usb->usb_ctrl_mtx);
do {
req_len = min_t(int, len, sizeof(usb->data));
memcpy(usb->data, data, req_len);
for (i = 0; i < DIV_ROUND_UP(len, 4); i++) {
put_unaligned(val[i], usb->data);
ret = __mt76u_vendor_request(dev, MT_VEND_MULTI_WRITE,
USB_DIR_OUT | USB_TYPE_VENDOR,
0, offset, usb->data, req_len);
0, offset + i * 4, usb->data,
sizeof(u32));
if (ret < 0)
break;
data += req_len;
offset += req_len;
len -= req_len;
} while (len > 0);
}
mutex_unlock(&usb->usb_ctrl_mtx);
}