[PATCH 3/3] usb: gadget: f_uac2: endianness fixes.

[Ruslan Bilovol]

As per USB spec, multiple-bytes fields are stored
in little-endian order. Use CPU<->LE helpers for
such fields.

Signed-off-by: Ruslan Bilovol <ruslan.bilo...@gmail.com>
---
 drivers/usb/gadget/function/f_uac2.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uac2.c 
b/drivers/usb/gadget/function/f_uac2.c
index 9082ce2..f05c3f3 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -168,7 +168,7 @@ enum {
        .bAssocTerminal = 0,
        .bCSourceID = USB_OUT_CLK_ID,
        .iChannelNames = 0,
-       .bmControls = (CONTROL_RDWR << COPY_CTRL),
+       .bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Input Terminal for I/O-In */
@@ -182,7 +182,7 @@ enum {
        .bAssocTerminal = 0,
        .bCSourceID = USB_IN_CLK_ID,
        .iChannelNames = 0,
-       .bmControls = (CONTROL_RDWR << COPY_CTRL),
+       .bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Ouput Terminal for USB_IN */
@@ -196,7 +196,7 @@ enum {
        .bAssocTerminal = 0,
        .bSourceID = IO_IN_IT_ID,
        .bCSourceID = USB_IN_CLK_ID,
-       .bmControls = (CONTROL_RDWR << COPY_CTRL),
+       .bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Ouput Terminal for I/O-Out */
@@ -210,7 +210,7 @@ enum {
        .bAssocTerminal = 0,
        .bSourceID = USB_OUT_IT_ID,
        .bCSourceID = USB_OUT_CLK_ID,
-       .bmControls = (CONTROL_RDWR << COPY_CTRL),
+       .bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 static struct uac2_ac_header_descriptor ac_hdr_desc = {
@@ -220,9 +220,10 @@ enum {
        .bDescriptorSubtype = UAC_MS_HEADER,
        .bcdADC = cpu_to_le16(0x200),
        .bCategory = UAC2_FUNCTION_IO_BOX,
-       .wTotalLength = sizeof in_clk_src_desc + sizeof out_clk_src_desc
-                        + sizeof usb_out_it_desc + sizeof io_in_it_desc
-                       + sizeof usb_in_ot_desc + sizeof io_out_ot_desc,
+       .wTotalLength = cpu_to_le16(sizeof in_clk_src_desc
+                       + sizeof out_clk_src_desc + sizeof usb_out_it_desc
+                       + sizeof io_in_it_desc + sizeof usb_in_ot_desc
+                       + sizeof io_out_ot_desc),
        .bmControls = 0,
 };
 
@@ -569,10 +570,12 @@ static void set_ep_max_packet_size(const struct 
f_uac2_opts *uac2_opts,
                return ret;
        }
 
-       agdev->in_ep_maxpsize = max(fs_epin_desc.wMaxPacketSize,
-                                       hs_epin_desc.wMaxPacketSize);
-       agdev->out_ep_maxpsize = max(fs_epout_desc.wMaxPacketSize,
-                                       hs_epout_desc.wMaxPacketSize);
+       agdev->in_ep_maxpsize = max_t(u16,
+                               le16_to_cpu(fs_epin_desc.wMaxPacketSize),
+                               le16_to_cpu(hs_epin_desc.wMaxPacketSize));
+       agdev->out_ep_maxpsize = max_t(u16,
+                               le16_to_cpu(fs_epout_desc.wMaxPacketSize),
+                               le16_to_cpu(hs_epout_desc.wMaxPacketSize));
 
        hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
        hs_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
-- 
1.9.1