linux-kernel - [PATCH] wifi: brcmfmac: remove misleading log messages

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Message-Id: <20241122180435.1637479-1-alexthreed@gmail.com>
Date: Fri, 22 Nov 2024 21:04:35 +0300
From: Alex Shumsky <alexthreed@...il.com>
To: linux-wireless@...r.kernel.org
Cc: Alex Shumsky <alexthreed@...il.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Arend van Spriel <arend.vanspriel@...adcom.com>,
	Kalle Valo <kvalo@...nel.org>,
	brcm80211-dev-list.pdl@...adcom.com,
	brcm80211@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] wifi: brcmfmac: remove misleading log messages

Currently when debug info enabled, dmesg spammed every few minutes with
misleading messages like:
  brcmf_netdev_start_xmit phy0-sta0: insufficient headroom (0)

Do not log this when headroom is actually sufficient.

Signed-off-by: Alex Shumsky <alexthreed@...il.com>
---

 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index da72fd2d541f..25c77014af9c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -327,8 +327,9 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 	if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
 		head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0);
 
-		brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
-			  brcmf_ifname(ifp), head_delta);
+		if (head_delta > 0)
+			brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
+				  brcmf_ifname(ifp), head_delta);
 		atomic_inc(&drvr->bus_if->stats.pktcowed);
 		ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0,
 				       GFP_ATOMIC);
-- 
2.34.1