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>
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 @@
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 @@
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;