diff options
Diffstat (limited to 'net/mac80211/debugfs.c')
| -rw-r--r-- | net/mac80211/debugfs.c | 88 |
1 files changed, 50 insertions, 38 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index a694c593ff6a..1f02e599a318 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -21,21 +21,36 @@ 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 = { \ .read = name## _read, \ .open = mac80211_open_file_generic, \ + .llseek = generic_file_llseek, \ }; #define DEBUGFS_ADD(name) \ @@ -45,13 +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, @@ -59,13 +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, @@ -85,13 +98,15 @@ static ssize_t tsf_write(struct file *file, if (strncmp(buf, "reset", 5) == 0) { if (local->ops->reset_tsf) { drv_reset_tsf(local); - printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy)); + wiphy_info(local->hw.wiphy, "debugfs reset TSF\n"); } } else { tsf = simple_strtoul(buf, NULL, 0); if (local->ops->set_tsf) { drv_set_tsf(local, tsf); - printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf); + wiphy_info(local->hw.wiphy, + "debugfs set TSF to %#018llx\n", tsf); + } } @@ -101,7 +116,8 @@ static ssize_t tsf_write(struct file *file, static const struct file_operations tsf_ops = { .read = tsf_read, .write = tsf_write, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; static ssize_t reset_write(struct file *file, const char __user *user_buf, @@ -120,18 +136,16 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf, static const struct file_operations reset_ops = { .write = reset_write, .open = mac80211_open_file_generic, + .llseek = noop_llseek, }; 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, @@ -155,19 +169,16 @@ static ssize_t noack_write(struct file *file, static const struct file_operations noack_ops = { .read = noack_read, .write = noack_write, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; 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, @@ -201,19 +212,17 @@ static ssize_t uapsd_queues_write(struct file *file, static const struct file_operations uapsd_queues_ops = { .read = uapsd_queues_read, .write = uapsd_queues_write, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; 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, @@ -247,7 +256,8 @@ static ssize_t uapsd_max_sp_len_write(struct file *file, static const struct file_operations uapsd_max_sp_len_ops = { .read = uapsd_max_sp_len_read, .write = uapsd_max_sp_len_write, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; static ssize_t channel_type_read(struct file *file, char __user *user_buf, @@ -279,7 +289,8 @@ static ssize_t channel_type_read(struct file *file, char __user *user_buf, static const struct file_operations channel_type_ops = { .read = channel_type_read, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; static ssize_t queues_read(struct file *file, char __user *user_buf, @@ -302,7 +313,8 @@ static ssize_t queues_read(struct file *file, char __user *user_buf, static const struct file_operations queues_ops = { .read = queues_read, - .open = mac80211_open_file_generic + .open = mac80211_open_file_generic, + .llseek = default_llseek, }; /* statistics stuff */ @@ -346,6 +358,7 @@ static ssize_t stats_ ##name## _read(struct file *file, \ static const struct file_operations stats_ ##name## _ops = { \ .read = stats_ ##name## _read, \ .open = mac80211_open_file_generic, \ + .llseek = generic_file_llseek, \ }; #define DEBUGFS_STATS_ADD(name, field) \ @@ -366,7 +379,6 @@ void debugfs_hw_add(struct ieee80211_local *local) if (!phyd) return; - local->debugfs.stations = debugfs_create_dir("stations", phyd); local->debugfs.keys = debugfs_create_dir("keys", phyd); DEBUGFS_ADD(frequency); |