* busy NULL, 2 -> {free, claimed} : callback in progress, can be claimed
*/
-#define IRQ_WORK_PENDING 1UL
-#define IRQ_WORK_BUSY 2UL
-#define IRQ_WORK_FLAGS 3UL
-#define IRQ_WORK_LAZY 4UL /* Doesn't want IPI, wait for tick */
+#define IRQ_WORK_PENDING BIT(0)
+#define IRQ_WORK_BUSY BIT(1)
+
+/* Doesn't want IPI, wait for tick: */
+#define IRQ_WORK_LAZY BIT(2)
+
+#define IRQ_WORK_CLAIMED (IRQ_WORK_PENDING | IRQ_WORK_BUSY)
struct irq_work {
unsigned long flags;
*/
flags = work->flags & ~IRQ_WORK_PENDING;
for (;;) {
- nflags = flags | IRQ_WORK_FLAGS;
+ nflags = flags | IRQ_WORK_CLAIMED;
oflags = cmpxchg(&work->flags, flags, nflags);
if (oflags == flags)
break;