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Subject[PATCH 16/18] media: staging: atomisp: use ARRAY_SIZE
Date
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is useless to use a variable to store this constant calculated at
compile time.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
(sizeof(E)@p /sizeof(*E))
|
(sizeof(E)@p /sizeof(E[...]))
|
(sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
---
.../pci/atomisp2/css2400/camera/pipe/src/pipe_binarydesc.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/camera/pipe/src/pipe_binarydesc.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/camera/pipe/src/pipe_binarydesc.c
index 17d3b7de93ba..98a2a3e9b3e6 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/camera/pipe/src/pipe_binarydesc.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/camera/pipe/src/pipe_binarydesc.c
@@ -22,6 +22,7 @@
#include <assert_support.h>
/* HRT_GDC_N */
#include "gdc_device.h"
+#include <linux/kernel.h>

/* This module provides a binary descriptions to used to find a binary. Since,
* every stage is associated with a binary, it implicity helps stage
@@ -147,11 +148,9 @@ enum ia_css_err sh_css_bds_factor_get_numerator_denominator(
unsigned int *bds_factor_denominator)
{
unsigned int i;
- unsigned int bds_list_size = sizeof(bds_factors_list) /
- sizeof(struct sh_css_bds_factor);

/* Loop over all bds factors until a match is found */
- for (i = 0; i < bds_list_size; i++) {
+ for (i = 0; i < ARRAY_SIZE(bds_factors_list); i++) {
if (bds_factors_list[i].bds_factor == bds_factor) {
*bds_factor_numerator = bds_factors_list[i].numerator;
*bds_factor_denominator = bds_factors_list[i].denominator;
@@ -170,8 +169,6 @@ enum ia_css_err binarydesc_calculate_bds_factor(
unsigned int *bds_factor)
{
unsigned int i;
- unsigned int bds_list_size = sizeof(bds_factors_list) /
- sizeof(struct sh_css_bds_factor);
unsigned int in_w = input_res.width,
in_h = input_res.height,
out_w = output_res.width, out_h = output_res.height;
@@ -186,7 +183,7 @@ enum ia_css_err binarydesc_calculate_bds_factor(
assert(out_w != 0 && out_h != 0);

/* Loop over all bds factors until a match is found */
- for (i = 0; i < bds_list_size; i++) {
+ for (i = 0; i < ARRAY_SIZE(bds_factors_list); i++) {
unsigned num = bds_factors_list[i].numerator;
unsigned den = bds_factors_list[i].denominator;

--
2.14.1
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