linux-kernel - [PATCH v2 2/2] nvme: Use USEC_PER

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Date:   Wed, 24 Jun 2020 14:49:58 +0800
From:   Baolin Wang <baolin.wang@...ux.alibaba.com>
To:     kbusch@...nel.org, axboe@...com, hch@....de, sagi@...mberg.me
Cc:     baolin.wang@...ux.alibaba.com, baolin.wang7@...il.com,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] nvme: Use USEC_PER_SEC instead of magic numbers

Use USEC_PER_SEC instead of magic numbers to make code more readable.

Reviewed-by: Sagi Grimberg <sagi@...mberg.me>
Signed-off-by: Baolin Wang <baolin.wang@...ux.alibaba.com>
---
 drivers/nvme/host/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f5f882f..405bafa 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2967,7 +2967,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 
 	if (id->rtd3e) {
 		/* us -> s */
-		u32 transition_time = le32_to_cpu(id->rtd3e) / 1000000;
+		u32 transition_time = le32_to_cpu(id->rtd3e) / USEC_PER_SEC;
 
 		ctrl->shutdown_timeout = clamp_t(unsigned int, transition_time,
 						 shutdown_timeout, 60);
-- 
1.8.3.1