arch: riscv: switch: Add a comment on the return of z_riscv_switch

When returning from z_riscv_switch, depending on whether the thread that has just been swapped in was earlier swapped out synchronously (i.e. via regular function call) or asynchronously (i.e. via exception/irq) we will return to arch_switch() or __irq_wrapper respectively. Comment this fact for clarity. Signed-off-by: Carles Cufi <[email protected]>
ikhramts · May 26, 2022 · 56512da · 56512da
1 parent 11da0b6
commit 56512da
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/riscv/core/switch.S b/arch/riscv/core/switch.S
@@ -129,4 +129,5 @@ no_fp:
 1:
 #endif /* CONFIG_FPU && CONFIG_FPU_SHARING */
 
+	/* Return to arch_switch() or _irq_wrapper() */
 	ret