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ath6kl: break stats gathering code into separate method

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This will allow us to call it from elsewhere when implementing
ethtool stats.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Ben Greear 2015-10-22 09:07:38 -07:00 committed by Kalle Valo
parent 53cc3291bc
commit 0370248379
2 changed files with 34 additions and 23 deletions
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55
drivers/net/wireless/ath/ath6kl/debug.c
View File

@ -98,6 +98,33 @@ void ath6kl_warn(const char *fmt, ...)
}
EXPORT_SYMBOL(ath6kl_warn);
int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif)
{
long left;
if (down_interruptible(&ar->sem))
return -EBUSY;
set_bit(STATS_UPDATE_PEND, &vif->flags);
if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
up(&ar->sem);
return -EIO;
}
left = wait_event_interruptible_timeout(ar->event_wq,
!test_bit(STATS_UPDATE_PEND,
&vif->flags), WMI_TIMEOUT);
up(&ar->sem);
if (left <= 0)
return -ETIMEDOUT;
return 0;
}
EXPORT_SYMBOL(ath6kl_read_tgt_stats);
#ifdef CONFIG_ATH6KL_DEBUG
void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...)
@ -544,42 +571,24 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
char *buf;
unsigned int len = 0, buf_len = 1500;
int i;
long left;
ssize_t ret_cnt;
int rv;
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
tgt_stats = &vif->target_stats;
buf = kzalloc(buf_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (down_interruptible(&ar->sem)) {
rv = ath6kl_read_tgt_stats(ar, vif);
if (rv < 0) {
kfree(buf);
return -EBUSY;
return rv;
}
set_bit(STATS_UPDATE_PEND, &vif->flags);
if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
up(&ar->sem);
kfree(buf);
return -EIO;
}
left = wait_event_interruptible_timeout(ar->event_wq,
!test_bit(STATS_UPDATE_PEND,
&vif->flags), WMI_TIMEOUT);
up(&ar->sem);
if (left <= 0) {
kfree(buf);
return -ETIMEDOUT;
}
tgt_stats = &vif->target_stats;
len += scnprintf(buf + len, buf_len - len, "\n");
len += scnprintf(buf + len, buf_len - len, "%25s\n",

2
drivers/net/wireless/ath/ath6kl/debug.h
View File

@ -59,6 +59,8 @@ enum ath6kl_war {
ATH6KL_WAR_INVALID_RATE,
};
int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif);
#ifdef CONFIG_ATH6KL_DEBUG
void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...);