Merge pull request #619 from lrh2000/sleep-relax-cpu

tavip · web-flow · commit f6d6f7d3c9a4 · 2026-01-15T10:19:41.000-08:00
lkl: relax cpu during __ndelay()
diff --git a/arch/lkl/kernel/time.c b/arch/lkl/kernel/time.c
@@ -14,7 +14,7 @@ void __ndelay(unsigned long nsecs)
 	unsigned long long start = lkl_ops->time();
 
 	while (lkl_ops->time() < start + nsecs)
-		;
+		cpu_relax();
 }
 
 void __udelay(unsigned long usecs)

Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@ void __ndelay(unsigned long nsecs)`
`14`	`14`	`unsigned long long start = lkl_ops->time();`
`15`	`15`
`16`	`16`	`while (lkl_ops->time() < start + nsecs)`
`17`		`- ;`
	`17`	`+ cpu_relax();`
`18`	`18`	`}`
`19`	`19`
`20`	`20`	`void __udelay(unsigned long usecs)`