Merge pull request #14532 from kjbracey-arm/ticker_log1

0xc0170 · web-flow · commit bfdd9163e0fc · 2021-04-13T12:07:16.000+02:00
Make ticker computation use shift-by-0
diff --git a/hal/source/mbed_ticker_api.c b/hal/source/mbed_ticker_api.c
@@ -110,7 +110,7 @@ static inline uint32_t gcd(uint32_t a, uint32_t b)
 
 static int exact_log2(uint32_t n)
 {
-    for (int i = 31; i > 0; --i) {
+    for (int i = 31; i >= 0; --i) {
         if ((1U << i) == n) {
             return i;
         }

Original file line number	Diff line number	Diff line change
`@@ -110,7 +110,7 @@ static inline uint32_t gcd(uint32_t a, uint32_t b)`
`110`	`110`
`111`	`111`	`static int exact_log2(uint32_t n)`
`112`	`112`	`{`
`113`		`- for (int i = 31; i > 0; --i) {`
	`113`	`+ for (int i = 31; i >= 0; --i) {`
`114`	`114`	`if ((1U << i) == n) {`
`115`	`115`	`return i;`
`116`	`116`	`}`