linux-kernel - [PATCH] staging: most: Eliminate symbolic permissions usage

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Message-Id: <20161124221029.12244-1-jlitzingerdev@gmail.com>
Date:   Thu, 24 Nov 2016 15:10:29 -0700
From:   Jason Litzinger <jlitzingerdev@...il.com>
To:     gregkh@...uxfoundation.org, christian.gromm@...rochip.com,
        andrey.shvetsov@....de
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Jason Litzinger <jlitzingerdev@...il.com>
Subject: [PATCH] staging: most: Eliminate symbolic permissions usage

Fix checkpatch warnings regarding the use of symbolic permissions.

Where the MOST_CHANNEL_ATTR macro is used, convert to octal permissions
over symbolic.

Where _ATTR is used directly, replace with _ATTR_RW/_ATTR_WO and
update the show/store function names appropriately.

Signed-off-by: Jason Litzinger <jlitzingerdev@...il.com>
---
 drivers/staging/most/mostcore/core.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 4c580d1a6a46..3c574a8cb971 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -342,7 +342,7 @@ static ssize_t show_channel_starving(struct most_c_obj *c,
 }
 
 #define create_show_channel_attribute(val) \
-	static MOST_CHNL_ATTR(val, S_IRUGO, show_##val, NULL)
+	static MOST_CHNL_ATTR(val, 0444, show_##val, NULL)
 
 create_show_channel_attribute(available_directions);
 create_show_channel_attribute(available_datatypes);
@@ -494,9 +494,7 @@ static ssize_t store_set_packets_per_xact(struct most_c_obj *c,
 }
 
 #define create_channel_attribute(value) \
-	static MOST_CHNL_ATTR(value, S_IRUGO | S_IWUSR, \
-			      show_##value, \
-			      store_##value)
+	static MOST_CHNL_ATTR(value, 0644, show_##value, store_##value)
 
 create_channel_attribute(set_buffer_size);
 create_channel_attribute(set_number_of_buffers);
@@ -690,7 +688,7 @@ static ssize_t show_interface(struct most_inst_obj *instance_obj,
 }
 
 #define create_inst_attribute(value) \
-	static MOST_INST_ATTR(value, S_IRUGO, show_##value, NULL)
+	static MOST_INST_ATTR(value, 0444, show_##value, NULL)
 
 create_inst_attribute(description);
 create_inst_attribute(interface);
@@ -849,7 +847,7 @@ static void most_aim_release(struct kobject *kobj)
 	kfree(aim_obj);
 }
 
-static ssize_t show_add_link(struct most_aim_obj *aim_obj,
+static ssize_t add_link_show(struct most_aim_obj *aim_obj,
 			     struct most_aim_attribute *attr,
 			     char *buf)
 {
@@ -966,7 +964,7 @@ most_c_obj *get_channel_by_name(char *mdev, char *mdev_ch)
  * (1) would create the device node /dev/my_rxchannel
  * (2) would create the device node /dev/mdev1-ep81
  */
-static ssize_t store_add_link(struct most_aim_obj *aim_obj,
+static ssize_t add_link_store(struct most_aim_obj *aim_obj,
 			      struct most_aim_attribute *attr,
 			      const char *buf,
 			      size_t len)
@@ -1016,7 +1014,7 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
 }
 
 static struct most_aim_attribute most_aim_attr_add_link =
-	__ATTR(add_link, S_IRUGO | S_IWUSR, show_add_link, store_add_link);
+	__ATTR_RW(add_link);
 
 /**
  * store_remove_link - store function for remove_link attribute
@@ -1028,7 +1026,7 @@ static struct most_aim_attribute most_aim_attr_add_link =
  * Example:
  * echo "mdev0:ep81" >remove_link
  */
-static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
+static ssize_t remove_link_store(struct most_aim_obj *aim_obj,
 				 struct most_aim_attribute *attr,
 				 const char *buf,
 				 size_t len)
@@ -1059,7 +1057,7 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
 }
 
 static struct most_aim_attribute most_aim_attr_remove_link =
-	__ATTR(remove_link, S_IWUSR, NULL, store_remove_link);
+	__ATTR_WO(remove_link)
 
 static struct attribute *most_aim_def_attrs[] = {
 	&most_aim_attr_add_link.attr,
-- 
2.10.0