diff options
| author | Oscar Carter <oscar.carter@gmx.com> | 2020-03-26 18:59:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-27 10:05:52 +0100 |
| commit | e681bb287f40e7a9dbcb04cef80fd87a2511ab86 (patch) | |
| tree | d89f838301a2950cdbc9901dfb134baa12d9f0c2 | |
| parent | a10079c6629068b906de5c944cb0e9bcc9517a7e (diff) | |
staging: vt6656: Use DIV_ROUND_UP macro instead of specific code
Use DIV_ROUND_UP macro instead of specific code with the same purpose.
Also, remove the unused variables.
Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Reviewed-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Link: https://lore.kernel.org/r/20200326175902.14467-1-oscar.carter@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/vt6656/baseband.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index 0b5729abcbcd..a19a563d8bcc 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -23,6 +23,7 @@ */ #include <linux/bits.h> +#include <linux/kernel.h> #include "mac.h" #include "baseband.h" #include "rf.h" @@ -133,7 +134,6 @@ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type, { unsigned int frame_time; unsigned int preamble; - unsigned int tmp; unsigned int rate = 0; if (tx_rate > RATE_54M) @@ -147,20 +147,11 @@ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type, else preamble = 192; - frame_time = (frame_length * 80) / rate; - tmp = (frame_time * rate) / 80; - - if (frame_length != tmp) - frame_time++; - + frame_time = DIV_ROUND_UP(frame_length * 80, rate); return preamble + frame_time; } - frame_time = (frame_length * 8 + 22) / rate; - tmp = ((frame_time * rate) - 22) / 8; - - if (frame_length != tmp) - frame_time++; + frame_time = DIV_ROUND_UP(frame_length * 8 + 22, rate); frame_time = frame_time * 4; if (pkt_type != PK_TYPE_11A) @@ -214,11 +205,7 @@ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length, break; case RATE_5M: - count = (bit_count * 10) / 55; - tmp = (count * 55) / 10; - - if (tmp != bit_count) - count++; + count = DIV_ROUND_UP(bit_count * 10, 55); if (preamble_type == 1) phy->signal = 0x0a; |