diff options
| author | Dmytro Milinevskyy <milinevskyy@gmail.com> | 2012-10-04 22:44:04 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-11-08 14:05:39 (GMT) |
| commit | f72e3b78867142a19b77f1de0698ce8b03dc6cbd (patch) | |
| tree | d516544d63e566385e5a745e9b7dfed94ee60899 /drivers/usb/gadget | |
| parent | 23834e533184bd2185bce500c789f86b3668739b (diff) | |
| download | linux-f72e3b78867142a19b77f1de0698ce8b03dc6cbd.tar.xz | |
usb: gadget: ncm: correct endianess conversion
Convert USB descriptor's fields to CPU byte order before using locally in USB
NCM gadget driver.
Tested on MIPS32 big-endian device.
Signed-off-by: Dmytro Milinevskyy <milinevskyy@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/f_ncm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index f1f66e9..6c8362f 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -102,7 +102,7 @@ static inline unsigned ncm_bitrate(struct usb_gadget *g) USB_CDC_NCM_NTB32_SUPPORTED) static struct usb_cdc_ncm_ntb_parameters ntb_parameters = { - .wLength = sizeof ntb_parameters, + .wLength = cpu_to_le16(sizeof(ntb_parameters)), .bmNtbFormatsSupported = cpu_to_le16(FORMATS_SUPPORTED), .dwNtbInMaxSize = cpu_to_le32(NTB_DEFAULT_IN_SIZE), .wNdpInDivisor = cpu_to_le16(4), @@ -869,15 +869,19 @@ static struct sk_buff *ncm_wrap_ntb(struct gether *port, struct sk_buff *skb2; int ncb_len = 0; __le16 *tmp; - int div = ntb_parameters.wNdpInDivisor; - int rem = ntb_parameters.wNdpInPayloadRemainder; + int div; + int rem; int pad; - int ndp_align = ntb_parameters.wNdpInAlignment; + int ndp_align; int ndp_pad; unsigned max_size = ncm->port.fixed_in_len; struct ndp_parser_opts *opts = ncm->parser_opts; unsigned crc_len = ncm->is_crc ? sizeof(uint32_t) : 0; + div = le16_to_cpu(ntb_parameters.wNdpInDivisor); + rem = le16_to_cpu(ntb_parameters.wNdpInPayloadRemainder); + ndp_align = le16_to_cpu(ntb_parameters.wNdpInAlignment); + ncb_len += opts->nth_size; ndp_pad = ALIGN(ncb_len, ndp_align) - ncb_len; ncb_len += ndp_pad; |