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authorColin Ian King <colin.king@canonical.com>2017-10-19 15:46:22 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2017-10-21 17:56:09 +0100
commit59dba8facb4ba20ffa6b6a1c76c41f3c662e075a (patch)
tree867d52483641a5e1d4ef55f040ce7e93757ba72e /drivers/iio
parentf66f18e99a253f5cf8c1cf7f2910b7ddcee92970 (diff)
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iio: adc: adc12138: make array ch_to_mux static, makes object code smaller
Don't populate const array ch_to_mux on the stack, instead make it static. Makes the object code smaller by over 200 bytes: Before: text data bss dec hex filename 12663 1648 128 14439 3867 drivers/iio/adc/ti-adc12138.o After text data bss dec hex filename 12353 1744 128 14225 3791 drivers/iio/adc/ti-adc12138.o (gcc version 7.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/ti-adc12138.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c
index bf890244789a..703d68ae96b7 100644
--- a/drivers/iio/adc/ti-adc12138.c
+++ b/drivers/iio/adc/ti-adc12138.c
@@ -164,7 +164,7 @@ static int __adc12138_start_conv(struct adc12138 *adc,
void *data, int len)
{
- const u8 ch_to_mux[] = { 0, 4, 1, 5, 2, 6, 3, 7 };
+ static const u8 ch_to_mux[] = { 0, 4, 1, 5, 2, 6, 3, 7 };
u8 mode = (ch_to_mux[channel->channel] << 4) |
(channel->differential ? 0 : 0x80);