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authorEliad Peller <eliad@wizery.com>2010-10-27 16:58:29 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-11-15 21:24:48 +0300
commit07caf9d6c9135ae25a760867f37aab90c1008380 (patch)
tree528409cde06c5927a311d453a4e59206fca0beb5 /net/mac80211/debugfs.c
parent6a6733f256f18cbcf4875e13f59eedb593b755a8 (diff)
downloadlinux-07caf9d6c9135ae25a760867f37aab90c1008380.tar.xz
mac80211: refactor debugfs function generation code
refactor mac80211 debugfs code by using a format&copy function, instead of duplicating the code for each generated function. this change reduces about 600B from mac80211.ko Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs.c')
-rw-r--r--net/mac80211/debugfs.c60
1 files changed, 31 insertions, 29 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 18260aa99c56..1f02e599a318 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -21,16 +21,30 @@ int mac80211_open_file_generic(struct inode *inode, struct file *file)
return 0;
}
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
+#define DEBUGFS_FORMAT_BUFFER_SIZE 100
+
+int mac80211_format_buffer(char __user *userbuf, size_t count,
+ loff_t *ppos, char *fmt, ...)
+{
+ va_list args;
+ char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
+ int res;
+
+ va_start(args, fmt);
+ res = vscnprintf(buf, sizeof(buf), fmt, args);
+ va_end(args);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_local *local = file->private_data; \
- char buf[buflen]; \
- int res; \
\
- res = scnprintf(buf, buflen, fmt "\n", ##value); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+ return mac80211_format_buffer(userbuf, count, ppos, \
+ fmt "\n", ##value); \
} \
\
static const struct file_operations name## _ops = { \
@@ -46,13 +60,13 @@ static const struct file_operations name## _ops = { \
debugfs_create_file(#name, mode, phyd, local, &name## _ops);
-DEBUGFS_READONLY_FILE(frequency, 20, "%d",
+DEBUGFS_READONLY_FILE(frequency, "%d",
local->hw.conf.channel->center_freq);
-DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
+DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
+DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
local->wep_iv & 0xffffff);
-DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
static ssize_t tsf_read(struct file *file, char __user *user_buf,
@@ -60,13 +74,11 @@ static ssize_t tsf_read(struct file *file, char __user *user_buf,
{
struct ieee80211_local *local = file->private_data;
u64 tsf;
- char buf[100];
tsf = drv_get_tsf(local);
- snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%016llx\n",
+ (unsigned long long) tsf);
}
static ssize_t tsf_write(struct file *file,
@@ -131,12 +143,9 @@ static ssize_t noack_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
- res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
+ local->wifi_wme_noack_test);
}
static ssize_t noack_write(struct file *file,
@@ -168,12 +177,8 @@ static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
-
- res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
+ local->uapsd_queues);
}
static ssize_t uapsd_queues_write(struct file *file,
@@ -215,12 +220,9 @@ static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
- res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
+ local->uapsd_max_sp_len);
}
static ssize_t uapsd_max_sp_len_write(struct file *file,