diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-23 09:04:05 +0100 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-23 09:04:05 +0100 |
commit | 92907cbbef8625bb3998d1eb385fc88f23c97a3f (patch) | |
tree | 15626ff9287e37c3cb81c7286d6db5a7fd77c854 /drivers/net/wireless/ath/ath6kl/debug.c | |
parent | 15fbfccfe92c62ae8d1ecc647c44157ed01ac02e (diff) | |
parent | 1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff) |
Merge tag 'v4.4-rc2' into drm-intel-next-queued
Linux 4.4-rc2
Backmerge to get at
commit 1b0e3a049efe471c399674fd954500ce97438d30
Author: Imre Deak <imre.deak@intel.com>
Date: Thu Nov 5 23:04:11 2015 +0200
drm/i915/skl: disable display side power well support for now
so that we can proplery re-eanble skl power wells in -next.
Conflicts are just adjacent lines changed, except for intel_fbdev.c
where we need to interleave the changs. Nothing nefarious.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/debug.c')
-rw-r--r-- | drivers/net/wireless/ath/ath6kl/debug.c | 55 |
1 files changed, 32 insertions, 23 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c index 81ba48d2938b..e2b7809d7886 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.c +++ b/drivers/net/wireless/ath/ath6kl/debug.c @@ -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", |