lkml.org 
[lkml]   [2017]   [Aug]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] iio: imu: inv_mpu6050: make arrays hz and d static
Date
From: Colin Ian King <colin.king@canonical.com>

Don't populate the arrays on the stack, instead make them static.
Makes the object code smaller by 135 bytes:

Before:
text data bss dec hex filename
15135 4240 128 19503 4c2f inv_mpu_core.o

After:
text data bss dec hex filename
14840 4400 128 19368 4ba8 inv_mpu_core.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 44830bce13df..6692f5e08dc8 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -570,10 +570,12 @@ static int inv_mpu6050_write_raw(struct iio_dev *indio_dev,
*/
static int inv_mpu6050_set_lpf(struct inv_mpu6050_state *st, int rate)
{
- const int hz[] = {188, 98, 42, 20, 10, 5};
- const int d[] = {INV_MPU6050_FILTER_188HZ, INV_MPU6050_FILTER_98HZ,
- INV_MPU6050_FILTER_42HZ, INV_MPU6050_FILTER_20HZ,
- INV_MPU6050_FILTER_10HZ, INV_MPU6050_FILTER_5HZ};
+ static const int hz[] = {188, 98, 42, 20, 10, 5};
+ static const int d[] = {
+ INV_MPU6050_FILTER_188HZ, INV_MPU6050_FILTER_98HZ,
+ INV_MPU6050_FILTER_42HZ, INV_MPU6050_FILTER_20HZ,
+ INV_MPU6050_FILTER_10HZ, INV_MPU6050_FILTER_5HZ
+ };
int i, h, result;
u8 data;

--
2.14.1
\
 
 \ /
  Last update: 2017-08-30 13:17    [W:0.030 / U:1.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site