linux-kernel - [PATCH 1031/1285] Replace numeric parameter like 0444 with macro

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Message-Id: <20160802121000.18840-1-baolex.ni@intel.com>
Date:	Tue,  2 Aug 2016 20:10:00 +0800
From:	Baole Ni <baolex.ni@...el.com>
To:	boris.ostrovsky@...cle.com, david.vrabel@...rix.com,
	jgross@...e.com, tomi.valkeinen@...com, m.chehab@...sung.com,
	gregkh@...uxfoundation.org, m.szyprowski@...sung.com,
	kyungmin.park@...sung.com, k.kozlowski@...sung.com
Cc:	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
	chuansheng.liu@...el.com, baolex.ni@...el.com, oneukum@...e.com
Subject: [PATCH 1031/1285] Replace numeric parameter like 0444 with macro

I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
Signed-off-by: Baole Ni <baolex.ni@...el.com>
---
 drivers/xen/xen-balloon.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index 79865b8..0a8cad2 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -124,10 +124,10 @@ BALLOON_SHOW(current_kb, "%lu\n", PAGES2KB(balloon_stats.current_pages));
 BALLOON_SHOW(low_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_low));
 BALLOON_SHOW(high_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_high));
 
-static DEVICE_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay);
-static DEVICE_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay);
-static DEVICE_ULONG_ATTR(retry_count, 0444, balloon_stats.retry_count);
-static DEVICE_ULONG_ATTR(max_retry_count, 0644, balloon_stats.max_retry_count);
+static DEVICE_ULONG_ATTR(schedule_delay, S_IRUSR | S_IRGRP | S_IROTH, balloon_stats.schedule_delay);
+static DEVICE_ULONG_ATTR(max_schedule_delay, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, balloon_stats.max_schedule_delay);
+static DEVICE_ULONG_ATTR(retry_count, S_IRUSR | S_IRGRP | S_IROTH, balloon_stats.retry_count);
+static DEVICE_ULONG_ATTR(max_retry_count, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, balloon_stats.max_retry_count);
 
 static ssize_t show_target_kb(struct device *dev, struct device_attribute *attr,
 			      char *buf)
-- 
2.9.2