[PATCH v6 2/2] ath9k: htc: clean up statistics macros

Pavel Skripkin
2022-06-13T20:25:18Z

I've changed *STAT_* macros a bit in previous patch and I seems like
they become really unreadable. Align these macros definitions to make
code cleaner and fix folllowing checkpatch warning

ERROR: Macros with complex values should be enclosed in parentheses

Also, statistics macros now accept an hif_dev as argument, since
macros that depend on having a local variable with a magic name
don't abide by the coding style.

No functional change

Suggested-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
---

Changes since v4:
- Fixed build error caused by wrong variable name
passed to newly added macros

Changes since v4:
- Rebased on top of ath-next branch

Changes since v3:
- Added additional clean up related to relying on magical
name from outside of the macro

Changes since v2:
- My send-email script forgot, that mailing lists exist.
Added back all related lists
- Fixed checkpatch warning

Changes since v1:
- Added this patch

---
drivers/net/wireless/ath/ath9k/hif_usb.c | 26 +++++++--------
drivers/net/wireless/ath/ath9k/htc.h | 32 +++++++++++--------
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 10 +++---
3 files changed, 36 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 518deb509..4d9002a9d 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -244,11 +244,11 @@ static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev,
ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
skb, txok);
if (txok) {
- TX_STAT_INC(skb_success);
- TX_STAT_ADD(skb_success_bytes, ln);
+ TX_STAT_INC(hif_dev, skb_success);
+ TX_STAT_ADD(hif_dev, skb_success_bytes, ln);
}
else
- TX_STAT_INC(skb_failed);
+ TX_STAT_INC(hif_dev, skb_failed);
}
}

@@ -302,7 +302,7 @@ static void hif_usb_tx_cb(struct urb *urb)
hif_dev->tx.tx_buf_cnt++;
if (!(hif_dev->tx.flags & HIF_USB_TX_STOP))
__hif_usb_tx(hif_dev); /* Check for pending SKBs */
- TX_STAT_INC(buf_completed);
+ TX_STAT_INC(hif_dev, buf_completed);
spin_unlock(&hif_dev->tx.tx_lock);
}

@@ -353,7 +353,7 @@ static int __hif_usb_tx(struct hif_device_usb *hif_dev)
tx_buf->len += tx_buf->offset;

__skb_queue_tail(&tx_buf->skb_queue, nskb);
- TX_STAT_INC(skb_queued);
+ TX_STAT_INC(hif_dev, skb_queued);
}

usb_fill_bulk_urb(tx_buf->urb, hif_dev->udev,
@@ -369,7 +369,7 @@ static int __hif_usb_tx(struct hif_device_usb *hif_dev)
list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
hif_dev->tx.tx_buf_cnt++;
} else {
- TX_STAT_INC(buf_queued);
+ TX_STAT_INC(hif_dev, buf_queued);
}

return ret;
@@ -514,7 +514,7 @@ static void hif_usb_sta_drain(void *hif_handle, u8 idx)
ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
skb, false);
hif_dev->tx.tx_skb_cnt--;
- TX_STAT_INC(skb_failed);
+ TX_STAT_INC(hif_dev, skb_failed);
}
}

@@ -585,14 +585,14 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
pkt_tag = get_unaligned_le16(ptr + index + 2);

if (pkt_tag != ATH_USB_RX_STREAM_MODE_TAG) {
- RX_STAT_INC(skb_dropped);
+ RX_STAT_INC(hif_dev, skb_dropped);
return;
}

if (pkt_len > 2 * MAX_RX_BUF_SIZE) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: invalid pkt_len (%x)\n", pkt_len);
- RX_STAT_INC(skb_dropped);
+ RX_STAT_INC(hif_dev, skb_dropped);
return;
}

@@ -618,7 +618,7 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
goto err;
}
skb_reserve(nskb, 32);
- RX_STAT_INC(skb_allocated);
+ RX_STAT_INC(hif_dev, skb_allocated);

memcpy(nskb->data, &(skb->data[chk_idx+4]),
hif_dev->rx_transfer_len);
@@ -639,7 +639,7 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
goto err;
}
skb_reserve(nskb, 32);
- RX_STAT_INC(skb_allocated);
+ RX_STAT_INC(hif_dev, skb_allocated);

memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len);
skb_put(nskb, pkt_len);
@@ -649,10 +649,10 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,

err:
for (i = 0; i < pool_index; i++) {
- RX_STAT_ADD(skb_completed_bytes, skb_pool[i]->len);
+ RX_STAT_ADD(hif_dev, skb_completed_bytes, skb_pool[i]->len);
ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i],
skb_pool[i]->len, USB_WLAN_RX_PIPE);
- RX_STAT_INC(skb_completed);
+ RX_STAT_INC(hif_dev, skb_completed);
}
}

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index e3d546ef7..30f0765fb 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -327,14 +327,18 @@ static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
}

#ifdef CONFIG_ATH9K_HTC_DEBUGFS
-#define __STAT_SAFE(expr) (hif_dev->htc_handle->drv_priv ? (expr) : 0)
-#define TX_STAT_INC(c) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
-#define TX_STAT_ADD(c, a) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
-#define RX_STAT_INC(c) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c++)
-#define RX_STAT_ADD(c, a) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c += a)
-#define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
-
-#define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
+#define __STAT_SAFE(hif_dev, expr) ((hif_dev)->htc_handle->drv_priv ? (expr) : 0)
+#define CAB_STAT_INC(priv) ((priv)->debug.tx_stats.cab_queued++)
+#define TX_QSTAT_INC(priv, q) ((priv)->debug.tx_stats.queue_stats[q]++)
+
+#define TX_STAT_INC(hif_dev, c) \
+ __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.tx_stats.c++)
+#define TX_STAT_ADD(hif_dev, c, a) \
+ __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.tx_stats.c += a)
+#define RX_STAT_INC(hif_dev, c) \
+ __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.skbrx_stats.c++)
+#define RX_STAT_ADD(hif_dev, c, a) \
+ __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.skbrx_stats.c += a)

void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
struct ath_rx_status *rs);
@@ -374,13 +378,13 @@ void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
struct ethtool_stats *stats, u64 *data);
#else

-#define TX_STAT_INC(c) do { } while (0)
-#define TX_STAT_ADD(c, a) do { } while (0)
-#define RX_STAT_INC(c) do { } while (0)
-#define RX_STAT_ADD(c, a) do { } while (0)
-#define CAB_STAT_INC do { } while (0)
+#define TX_STAT_INC(hif_dev, c)
+#define TX_STAT_ADD(hif_dev, c, a)
+#define RX_STAT_INC(hif_dev, c)
+#define RX_STAT_ADD(hif_dev, c, a)

-#define TX_QSTAT_INC(c) do { } while (0)
+#define CAB_STAT_INC(priv)
+#define TX_QSTAT_INC(priv, c)

static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
struct ath_rx_status *rs)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index a23eaca03..672789e3c 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -106,20 +106,20 @@ static inline enum htc_endpoint_id get_htc_epid(struct ath9k_htc_priv *priv,

switch (qnum) {
case 0:
- TX_QSTAT_INC(IEEE80211_AC_VO);
+ TX_QSTAT_INC(priv, IEEE80211_AC_VO);
epid = priv->data_vo_ep;
break;
case 1:
- TX_QSTAT_INC(IEEE80211_AC_VI);
+ TX_QSTAT_INC(priv, IEEE80211_AC_VI);
epid = priv->data_vi_ep;
break;
case 2:
- TX_QSTAT_INC(IEEE80211_AC_BE);
+ TX_QSTAT_INC(priv, IEEE80211_AC_BE);
epid = priv->data_be_ep;
break;
case 3:
default:
- TX_QSTAT_INC(IEEE80211_AC_BK);
+ TX_QSTAT_INC(priv, IEEE80211_AC_BK);
epid = priv->data_bk_ep;
break;
}
@@ -328,7 +328,7 @@ static void ath9k_htc_tx_data(struct ath9k_htc_priv *priv,
memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));

if (is_cab) {
- CAB_STAT_INC;
+ CAB_STAT_INC(priv);
tx_ctl->epid = priv->cab_ep;
return;
}
--
2.36.1