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lib: utils/irqchip: plic: Fix the off-by-one error in plic_context_init()

The number of interrupt enable register in words was once correct,
but was wrongly changed to have an off-by-one error since
commit 8c362e7d065e ("lib: irqchip/plic: Factor out a context init function").

Fixes: 8c362e7d065e ("lib: irqchip/plic: Factor out a context init function")
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Bin Meng 1 年之前
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91c8a7d5ce
共有 1 個文件被更改,包括 1 次插入1 次删除
  1. 1 1
      lib/utils/irqchip/plic.c

+ 1 - 1
lib/utils/irqchip/plic.c

@@ -121,7 +121,7 @@ int plic_context_init(const struct plic_data *plic, int context_id,
 	if (!plic || context_id < 0)
 		return SBI_EINVAL;
 
-	ie_words = (plic->num_src + 31) / 32;
+	ie_words = plic->num_src / 32 + 1;
 	ie_value = enable ? 0xffffffffU : 0U;
 
 	for (u32 i = 0; i < ie_words; i++)