linux-kernel - [PATCH] PCI/ASPM: add missing newline when printing parameter 'policy' by sysfs

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Date:   Fri, 17 Jul 2020 15:59:25 +0800
From:   Xiongfeng Wang <wangxiongfeng2@...wei.com>
To:     <bhelgaas@...gle.com>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <guohanjun@...wei.com>, <wangxiongfeng2@...wei.com>
Subject: [PATCH] PCI/ASPM: add missing newline when printing parameter 'policy' by sysfs

When I cat ASPM parameter 'policy' by sysfs, it displays as follows.
It's better to add a newline for easy reading.

[root@...alhost ~]# cat /sys/module/pcie_aspm/parameters/policy
[default] performance powersave powersupersave [root@...alhost ~]#

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@...wei.com>
---
 drivers/pci/pcie/aspm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index b17e5ff..253c30c 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1182,6 +1182,7 @@ static int pcie_aspm_get_policy(char *buffer, const struct kernel_param *kp)
 			cnt += sprintf(buffer + cnt, "[%s] ", policy_str[i]);
 		else
 			cnt += sprintf(buffer + cnt, "%s ", policy_str[i]);
+	cnt += sprintf(buffer + cnt, "\n");
 	return cnt;
 }
 
-- 
1.7.12.4