[PATCH] usb: gadget: ncm: correct endianess conversion

[Dmytro Milinevskyy]

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@xxxxxxxxx>
---
 drivers/usb/gadget/f_ncm.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c
index b651b52..a7cdd47 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;
--
1.8.0


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