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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2023-07-03 16:52:09 +0300
committerMark Brown <broonie@kernel.org>2023-07-10 00:47:49 +0300
commit08f6a14b2d376e96cb7166694193ec3c3a496d25 (patch)
treec9530d4c810e8a98c307d479ad311382fc14e9de /lib/math
parentf97fa3dcb2db02013e6904c032a1d2d45707ee40 (diff)
downloadlinux-08f6a14b2d376e96cb7166694193ec3c3a496d25.tar.xz
lib/math/int_log: Use ARRAY_SIZE(logtable) where makes sense
Use ARRAY_SIZE(logtable) where makes sense. Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/20230619172019.21457-3-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230703135211.87416-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'lib/math')
-rw-r--r--lib/math/int_log.c4
1 files 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 */