Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2022-03-16

This series contains updates to gtp and ice driver.

Wojciech fixes smatch reported inconsistent indenting for gtp and ice.

Yang Yingliang fixes a couple of return value checks for GNSS to IS_PTR
instead of null.

Jacob adds support for trace events on tx timestamps.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ice: add trace events for tx timestamps
  ice: fix return value check in ice_gnss.c
  ice: Fix inconsistent indenting in ice_switch
  gtp: Fix inconsistent indenting
====================

Link: https://lore.kernel.org/r/20220316204024.3201500-1-anthony.l.nguyen@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/intel/ice/ice_gnss.c

@@ -125,7 +125,7 @@ static struct gnss_serial *ice_gnss_struct_init(struct ice_pf *pf)
 	 * writes.
 	 */
 	kworker = kthread_create_worker(0, "ice-gnss-%s", dev_name(dev));
-	if (!kworker) {
+	if (IS_ERR(kworker)) {
 		kfree(gnss);
 		return NULL;
 	}
@@ -253,7 +253,7 @@ static struct tty_driver *ice_gnss_create_tty_driver(struct ice_pf *pf)
 	int err;
 
 	tty_driver = tty_alloc_driver(1, TTY_DRIVER_REAL_RAW);
-	if (!tty_driver) {
+	if (IS_ERR(tty_driver)) {
 		dev_err(ice_pf_to_dev(pf), "Failed to allocate memory for GNSS TTY\n");
 		return NULL;
 	}

drivers/net/ethernet/intel/ice/ice_ptp.c

@@ -3,6 +3,7 @@
 
 #include "ice.h"
 #include "ice_lib.h"
+#include "ice_trace.h"
 
 #define E810_OUT_PROP_DELAY_NS 1
 
@@ -2063,11 +2064,15 @@ static void ice_ptp_tx_tstamp_work(struct kthread_work *work)
 		struct sk_buff *skb;
 		int err;
 
+		ice_trace(tx_tstamp_fw_req, tx->tstamps[idx].skb, idx);
+
 		err = ice_read_phy_tstamp(hw, tx->quad, phy_idx,
 					  &raw_tstamp);
 		if (err)
 			continue;
 
+		ice_trace(tx_tstamp_fw_done, tx->tstamps[idx].skb, idx);
+
 		/* Check if the timestamp is invalid or stale */
 		if (!(raw_tstamp & ICE_PTP_TS_VALID) ||
 		    raw_tstamp == tx->tstamps[idx].cached_tstamp)
@@ -2093,6 +2098,8 @@ static void ice_ptp_tx_tstamp_work(struct kthread_work *work)
 		tstamp = ice_ptp_extend_40b_ts(pf, raw_tstamp);
 		shhwtstamps.hwtstamp = ns_to_ktime(tstamp);
 
+		ice_trace(tx_tstamp_complete, skb, idx);
+
 		skb_tstamp_tx(skb, &shhwtstamps);
 		dev_kfree_skb_any(skb);
 	}
@@ -2131,6 +2138,7 @@ s8 ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb)
 		tx->tstamps[idx].start = jiffies;
 		tx->tstamps[idx].skb = skb_get(skb);
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+		ice_trace(tx_tstamp_request, skb, idx);
 	}
 
 	spin_unlock(&tx->lock);

drivers/net/ethernet/intel/ice/ice_switch.c

@@ -5565,7 +5565,7 @@ ice_find_dummy_packet(struct ice_adv_lkup_elem *lkups, u16 lkups_cnt,
 					*offsets = dummy_ipv6_gtpu_ipv4_udp_packet_offsets;
 				} else {
 					*pkt = dummy_ipv6_gtpu_ipv4_tcp_packet;
-				*pkt_len = sizeof(dummy_ipv6_gtpu_ipv4_tcp_packet);
+					*pkt_len = sizeof(dummy_ipv6_gtpu_ipv4_tcp_packet);
 					*offsets = dummy_ipv6_gtpu_ipv4_tcp_packet_offsets;
 				}
 			}

drivers/net/ethernet/intel/ice/ice_trace.h

@@ -216,6 +216,30 @@ DEFINE_EVENT(ice_xmit_template, name, \
 DEFINE_XMIT_TEMPLATE_OP_EVENT(ice_xmit_frame_ring);
 DEFINE_XMIT_TEMPLATE_OP_EVENT(ice_xmit_frame_ring_drop);
 
+DECLARE_EVENT_CLASS(ice_tx_tstamp_template,
+		    TP_PROTO(struct sk_buff *skb, int idx),
+
+		    TP_ARGS(skb, idx),
+
+		    TP_STRUCT__entry(__field(void *, skb)
+				     __field(int, idx)),
+
+		    TP_fast_assign(__entry->skb = skb;
+				   __entry->idx = idx;),
+
+		    TP_printk("skb %pK idx %d",
+			      __entry->skb, __entry->idx)
+);
+#define DEFINE_TX_TSTAMP_OP_EVENT(name) \
+DEFINE_EVENT(ice_tx_tstamp_template, name, \
+	     TP_PROTO(struct sk_buff *skb, int idx), \
+	     TP_ARGS(skb, idx))
+
+DEFINE_TX_TSTAMP_OP_EVENT(ice_tx_tstamp_request);
+DEFINE_TX_TSTAMP_OP_EVENT(ice_tx_tstamp_fw_req);
+DEFINE_TX_TSTAMP_OP_EVENT(ice_tx_tstamp_fw_done);
+DEFINE_TX_TSTAMP_OP_EVENT(ice_tx_tstamp_complete);
+
 /* End tracepoints */
 
 #endif /* _ICE_TRACE_H_ */

drivers/net/gtp.c

@@ -1793,7 +1793,7 @@ static int gtp_genl_send_echo_req(struct sk_buff *skb, struct genl_info *info)
 	if (IS_ERR(rt)) {
 		netdev_dbg(gtp->dev, "no route for echo request to %pI4\n",
 			   &dst_ip);
-			   kfree_skb(skb_to_send);
+		kfree_skb(skb_to_send);
 		return -ENODEV;
 	}