There is a few cases where braces are not needed. This patch removes
unnecessary '& 255' pieces as well when lvalue type is u8.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/usb/class/usbtmc.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index cb2d672..60dd891 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -392,12 +392,12 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t
*/
buffer[0] = 2;
buffer[1] = data->bTag;
- buffer[2] = ~(data->bTag);
+ buffer[2] = ~data->bTag;
buffer[3] = 0; /* Reserved */
- buffer[4] = (transfer_size) & 255;
- buffer[5] = ((transfer_size) >> 8) & 255;
- buffer[6] = ((transfer_size) >> 16) & 255;
- buffer[7] = ((transfer_size) >> 24) & 255;
+ buffer[4] = transfer_size >> 0;
+ buffer[5] = transfer_size >> 8;
+ buffer[6] = transfer_size >> 16;
+ buffer[7] = transfer_size >> 24;
buffer[8] = data->TermCharEnabled * 2;
/* Use term character? */
buffer[9] = data->TermChar;
@@ -416,7 +416,7 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t
/* Increment bTag -- and increment again if zero */
data->bTag++;
if (!data->bTag)
- (data->bTag)++;
+ data->bTag++;
if (retval < 0) {
dev_err(&data->intf->dev, "usb_bulk_msg in send_request_dev_dep_msg_in() returned %d\n", retval);
@@ -471,7 +471,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
done = 0;
while (remaining > 0) {
- if (!(data->rigol_quirk)) {
+ if (!data->rigol_quirk) {
dev_dbg(dev, "usb_bulk_msg_in: remaining(%zu), count(%zu)\n", remaining, count);
if (remaining > USBTMC_SIZE_IOBUFFER - USBTMC_HEADER_SIZE - 3)
@@ -508,7 +508,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
}
/* Parse header in first packet */
- if ((done == 0) || (!(data->rigol_quirk))) {
+ if ((done == 0) || !data->rigol_quirk) {
/* Sanity checks for the header */
if (actual < USBTMC_HEADER_SIZE) {
dev_err(dev, "Device sent too small first packet: %u < %u\n", actual, USBTMC_HEADER_SIZE);
@@ -568,7 +568,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
remaining -= actual;
/* Terminate if end-of-message bit received from device */
- if ((buffer[8] & 0x01) && (actual >= n_characters))
+ if ((buffer[8] & 0x01) && (actual >= n_characters))
remaining = 0;
dev_dbg(dev, "Bulk-IN header: remaining(%zu), buf(%p), buffer(%p) done(%zu)\n", remaining,buf,buffer,done);
@@ -649,12 +649,12 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf,
/* Setup IO buffer for DEV_DEP_MSG_OUT message */
buffer[0] = 1;
buffer[1] = data->bTag;
- buffer[2] = ~(data->bTag);
+ buffer[2] = ~data->bTag;
buffer[3] = 0; /* Reserved */
- buffer[4] = this_part & 255;
- buffer[5] = (this_part >> 8) & 255;
- buffer[6] = (this_part >> 16) & 255;
- buffer[7] = (this_part >> 24) & 255;
+ buffer[4] = this_part >> 0;
+ buffer[5] = this_part >> 8;
+ buffer[6] = this_part >> 16;
+ buffer[7] = this_part >> 24;
/* buffer[8] is set above... */
buffer[9] = 0; /* Reserved */
buffer[10] = 0; /* Reserved */
--
1.8.3.2
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