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staging: most: hdm-usb: Use macro DIV_ROUND_UP

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The macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /(d)).
It clarifies the divisor calculations. This occurence was detected using the
coccinelle script:
@@
expression e1;
expression e2;
@@
(
- ((e1) + e2 - 1) / (e2)
+ DIV_ROUND_UP(e1,e2)
|
- ((e1) + (e2 - 1))/ (e2)
+ DIV_ROUND_UP(e1,e2)
)

The macro CEILING was dropped altogether and has been replaced with
DIV_ROUND_UP.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhaktipriya Shridhar 2016-02-22 17:57:42 +05:30 committed by Greg Kroah-Hartman
parent 3e8b9fe060
commit dce57aef61
1 changed files with 1 additions and 2 deletions
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3
drivers/staging/most/hdm-usb/hdm_usb.c
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@ -40,7 +40,6 @@
#define MAX_SUFFIX_LEN 10
#define MAX_STRING_LEN 80
#define MAX_BUF_SIZE 0xFFFF
#define CEILING(x, y) (((x) + (y) - 1) / (y))
#define USB_VENDOR_ID_SMSC 0x0424 /* VID: SMSC */
#define USB_DEV_ID_BRDG 0xC001 /* PID: USB Bridge */
@ -786,7 +785,7 @@ static int hdm_configure_channel(struct most_interface *iface, int channel,
temp_size += tail_space;
/* calculate extra length to comply w/ HW padding */
conf->extra_len = (CEILING(temp_size, USB_MTU) * USB_MTU)
conf->extra_len = (DIV_ROUND_UP(temp_size, USB_MTU) * USB_MTU)
- conf->buffer_size;
exit:
mdev->conf[channel] = *conf;