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Subject[PATCH] media: atomisp: make const arrays static, makes object smaller
Date
From: Colin Ian King <colin.king@canonical.com>

Don't populate const arrays on the stack but instead make them
static. Makes the object code smaller by 150 bytes.

Before:
text data bss dec hex filename
111083 23692 64 134839 20eb7 atomisp/pci/atomisp_compat_css20.o

After:
text data bss dec hex filename
110773 23852 64 134689 20e21 atomisp/pci/atomisp_compat_css20.o

After:

(gcc version 9.3.0, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/staging/media/atomisp/pci/atomisp_compat_css20.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
index 71914d364ad9..9498aecf3be7 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
@@ -2410,13 +2410,13 @@ static void __configure_preview_pp_input(struct atomisp_sub_device *asd,
struct ia_css_resolution *effective_res =
&stream_config->input_config.effective_res;

- const struct bayer_ds_factor bds_fct[] = {{2, 1}, {3, 2}, {5, 4} };
+ static const struct bayer_ds_factor bds_fct[] = {{2, 1}, {3, 2}, {5, 4} };
/*
* BZ201033: YUV decimation factor of 4 causes couple of rightmost
* columns to be shaded. Remove this factor to work around the CSS bug.
* const unsigned int yuv_dec_fct[] = {4, 2};
*/
- const unsigned int yuv_dec_fct[] = { 2 };
+ static const unsigned int yuv_dec_fct[] = { 2 };
unsigned int i;

if (width == 0 && height == 0)
@@ -2536,7 +2536,7 @@ static void __configure_video_pp_input(struct atomisp_sub_device *asd,
struct ia_css_resolution *effective_res =
&stream_config->input_config.effective_res;

- const struct bayer_ds_factor bds_factors[] = {
+ static const struct bayer_ds_factor bds_factors[] = {
{8, 1}, {6, 1}, {4, 1}, {3, 1}, {2, 1}, {3, 2}
};
unsigned int i;
--
2.27.0.rc0
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