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authorStephen Boyd <sboyd@codeaurora.org>2012-04-05 23:25:11 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-06 00:25:50 +0200
commit234e340582901211f40d8c732afc49f0630ecf05 (patch)
tree753076500dfd883b3db56d4f5410af31d8945623 /net/wireless
parentscripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() (diff)
downloadlinux-234e340582901211f40d8c732afc49f0630ecf05.tar.xz
linux-234e340582901211f40d8c732afc49f0630ecf05.zip
simple_open: automatically convert to simple_open()
Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: <smpl> @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; </smpl> [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/debugfs.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 39765bcfb472..920cabe0461b 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -13,12 +13,6 @@
#include "core.h"
#include "debugfs.h"
-static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
@@ -33,7 +27,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \
\
static const struct file_operations name## _ops = { \
.read = name## _read, \
- .open = cfg80211_open_file_generic, \
+ .open = simple_open, \
.llseek = generic_file_llseek, \
};
@@ -102,7 +96,7 @@ static ssize_t ht40allow_map_read(struct file *file,
static const struct file_operations ht40allow_map_ops = {
.read = ht40allow_map_read,
- .open = cfg80211_open_file_generic,
+ .open = simple_open,
.llseek = default_llseek,
};