xiaoxiang781216 commented on code in PR #5985:
URL: https://github.com/apache/incubator-nuttx/pull/5985#discussion_r844633149
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arch/risc-v/src/common/riscv_percpu.c:
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@@ -86,13 +92,39 @@ void riscv_percpu_init(void)
void riscv_percpu_add_hart(uintptr_t hartid)
{
- /* Hart IDs go from 0...4 */
+ riscv_percpu_t *percpu;
+ uintptr_t stack_top;
+
+ /* Get free entry for this hart, this must not fail */
+
+ percpu = (riscv_percpu_t *)sq_remfirst(&g_freelist);
+ DEBUGASSERT(percpu);
+
+ /* Get interrupt stack (if any) */
+
+ stack_top = 0;
Review Comment:
I mean remove line 105, your code at line 111 and 116 assign stack_top
again. Why need assign stack_top to zero here?
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