kernel: Simplify k_thread_cpu_pin()

peter-mitsis · henrikbrixandersen · commit eda5814dbce4 · 2024-09-20T09:02:38.000+02:00
Simplifies the k_thread_cpu_pin() implementation to leverage the
existing cpu_mask_mod() infrastructure.

Signed-off-by: Peter Mitsis &lt;peter.mitsis@intel.com&gt;
diff --git a/kernel/cpu_mask.c b/kernel/cpu_mask.c
@@ -66,11 +66,7 @@ int k_thread_cpu_mask_disable(k_tid_t thread, int cpu)
 
 int k_thread_cpu_pin(k_tid_t thread, int cpu)
 {
-	int ret;
+	uint32_t mask = BIT(cpu);
 
-	ret = k_thread_cpu_mask_clear(thread);
-	if (ret == 0) {
-		return k_thread_cpu_mask_enable(thread, cpu);
-	}
-	return ret;
+	return cpu_mask_mod(thread, mask, ~mask);
 }

Original file line number	Diff line number	Diff line change
`@@ -66,11 +66,7 @@ int k_thread_cpu_mask_disable(k_tid_t thread, int cpu)`
`66`	`66`
`67`	`67`	`int k_thread_cpu_pin(k_tid_t thread, int cpu)`
`68`	`68`	`{`
`69`		`- int ret;`
	`69`	`+ uint32_t mask = BIT(cpu);`
`70`	`70`
`71`		`- ret = k_thread_cpu_mask_clear(thread);`
`72`		`- if (ret == 0) {`
`73`		`- return k_thread_cpu_mask_enable(thread, cpu);`
`74`		`- }`
`75`		`- return ret;`
	`71`	`+ return cpu_mask_mod(thread, mask, ~mask);`
`76`	`72`	`}`