[PATCH v1 2/4] lib/math/int_log: Use ARRAY_SIZE(logtable) where makes sense

Andy Shevchenko
2023-06-19T17:20:28Z

Use ARRAY_SIZE(logtable) where makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
lib/math/int_log.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/math/int_log.c b/lib/math/int_log.c
index 322df25a22d6..ea98fc0b3fe2 100644
--- a/lib/math/int_log.c
+++ b/lib/math/int_log.c
@@ -91,7 +91,7 @@ unsigned int intlog2(u32 value)
* so we would use the entry 0x18
*/
significand = value << (31 - msb);
- logentry = (significand >> 23) & 0xff;
+ logentry = (significand >> 23) % ARRAY_SIZE(logtable);

/**
* last step we do is interpolation because of the
@@ -109,7 +109,7 @@ unsigned int intlog2(u32 value)
* logtable_next is 256
*/
interpolation = ((significand & 0x7fffff) *
- ((logtable[(logentry + 1) & 0xff] -
+ ((logtable[(logentry + 1) % ARRAY_SIZE(logtable)] -
logtable[logentry]) & 0xffff)) >> 15;

/* now we return the result */
--
2.40.0.1.gaa8946217a0b