diff options
| -rw-r--r-- | drivers/usb/wusbcore/security.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index 170f2c38de9b..724490580c1e 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -28,6 +28,7 @@ #include <linux/random.h> #include <linux/export.h> #include "wusbhc.h" +#include <asm/unaligned.h> static void wusbhc_gtk_rekey_work(struct work_struct *work); @@ -367,7 +368,6 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, struct usb_device *usb_dev = wusb_dev->usb_dev; struct device *dev = &usb_dev->dev; u32 tkid; - __le32 tkid_le; struct usb_handshake *hs; struct aes_ccm_nonce ccm_n; u8 mic[8]; @@ -385,11 +385,10 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, goto error_dev_set_encryption; tkid = wusbhc_next_tkid(wusbhc, wusb_dev); - tkid_le = cpu_to_le32(tkid); hs[0].bMessageNumber = 1; hs[0].bStatus = 0; - memcpy(hs[0].tTKID, &tkid_le, sizeof(hs[0].tTKID)); + put_unaligned_le32(tkid, hs[0].tTKID); hs[0].bReserved = 0; memcpy(hs[0].CDID, &wusb_dev->cdid, sizeof(hs[0].CDID)); get_random_bytes(&hs[0].nonce, sizeof(hs[0].nonce)); @@ -441,7 +440,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, /* Setup the CCM nonce */ memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */ - memcpy(ccm_n.tkid, &tkid_le, sizeof(ccm_n.tkid)); + put_unaligned_le32(tkid, ccm_n.tkid); ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr; ccm_n.dest_addr.data[0] = wusb_dev->addr; ccm_n.dest_addr.data[1] = 0; @@ -472,7 +471,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, /* Send Handshake3 */ hs[2].bMessageNumber = 3; hs[2].bStatus = 0; - memcpy(hs[2].tTKID, &tkid_le, sizeof(hs[2].tTKID)); + put_unaligned_le32(tkid, hs[2].tTKID); hs[2].bReserved = 0; memcpy(hs[2].CDID, &wusb_dev->cdid, sizeof(hs[2].CDID)); memcpy(hs[2].nonce, hs[0].nonce, sizeof(hs[2].nonce)); |