[v2 03/11] rsi: Changes in USB read and write operations

[Amitkumar Karwar]

From: Prameela Rani Garnepudi <prameela.j0...@gmail.com>

USB read and write registers maximum size is limited 2^16. More than
this size is not used in the driver.

Signed-off-by: Prameela Rani Garnepudi <prameela.j0...@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.kar...@redpinesignals.com>
---
 drivers/net/wireless/rsi/rsi_91x_usb.c     | 6 +++---
 drivers/net/wireless/rsi/rsi_91x_usb_ops.c | 9 +++++----
 drivers/net/wireless/rsi/rsi_usb.h         | 2 +-
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c 
b/drivers/net/wireless/rsi/rsi_91x_usb.c
index cc8deec..dfb8a75 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -286,11 +286,11 @@ static int rsi_rx_urb_submit(struct rsi_hw *adapter)
 int rsi_usb_write_register_multiple(struct rsi_hw *adapter,
                                    u32 addr,
                                    u8 *data,
-                                   u32 count)
+                                   u16 count)
 {
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
        u8 *buf;
-       u8 transfer;
+       u16 transfer;
        int status = 0;
 
        buf = kzalloc(4096, GFP_KERNEL);
@@ -298,7 +298,7 @@ int rsi_usb_write_register_multiple(struct rsi_hw *adapter,
                return -ENOMEM;
 
        while (count) {
-               transfer = (u8)(min_t(u32, count, 4096));
+               transfer = min_t(u16, count, 4096);
                memcpy(buf, data, transfer);
                status = usb_control_msg(dev->usbdev,
                                         usb_sndctrlpipe(dev->usbdev, 0),
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb_ops.c 
b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
index de49008..1c3e654 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
@@ -33,12 +33,12 @@
 static int rsi_copy_to_card(struct rsi_common *common,
                            const u8 *fw,
                            u32 len,
-                           u32 num_blocks)
+                           u16 num_blocks)
 {
        struct rsi_hw *adapter = common->priv;
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
        u32 indx, ii;
-       u32 block_size = dev->tx_blk_size;
+       u16 block_size = dev->tx_blk_size;
        u32 lsb_address;
        u32 base_address;
 
@@ -134,9 +134,10 @@ static int rsi_load_ta_instructions(struct rsi_common 
*common)
        struct rsi_hw *adapter = common->priv;
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
        const struct firmware *fw_entry = NULL;
-       u32 block_size = dev->tx_blk_size;
+       u16 block_size = dev->tx_blk_size;
        const u8 *fw;
-       u32 num_blocks, len;
+       u16 num_blocks;
+       u32 len;
        int status = 0;
 
        status = request_firmware(&fw_entry, FIRMWARE_RSI9113, adapter->device);
diff --git a/drivers/net/wireless/rsi/rsi_usb.h 
b/drivers/net/wireless/rsi/rsi_usb.h
index ebea0c4..52379c6 100644
--- a/drivers/net/wireless/rsi/rsi_usb.h
+++ b/drivers/net/wireless/rsi/rsi_usb.h
@@ -63,6 +63,6 @@ static inline int rsi_usb_event_timeout(struct rsi_hw 
*adapter)
 
 int rsi_usb_device_init(struct rsi_common *common);
 int rsi_usb_write_register_multiple(struct rsi_hw *adapter, u32 addr,
-                                   u8 *data, u32 count);
+                                   u8 *data, u16 count);
 void rsi_usb_rx_thread(struct rsi_common *common);
 #endif
-- 
2.7.4