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[211.75.139.220]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47be279c5f8sm742090205e9.9.2026.01.01.19.19.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jan 2026 19:19:10 -0800 (PST) Sender: AceLan Kao From: "Chia-Lin Kao (AceLan)" To: Andreas Noever , Mika Westerberg , Yehezkel Bernat , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] thunderbolt: log path activation failures without WARN backtraces Date: Fri, 2 Jan 2026 11:19:05 +0800 Message-ID: <20260102031905.27416-1-acelan.kao@canonical.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" tb_path_activate() currently logs failures with tb_WARN(), which triggers a stack trace. Transient conditions such as lane bonding or Type-C link hiccups can fail path activation briefly, and the resulting backtraces are noisy without aiding diagnosis. Switch to tb_warn() for all path activation failures. The error code is already returned to callers, and the warning still shows the message without the backtrace. Signed-off-by: Chia-Lin Kao (AceLan) --- drivers/thunderbolt/path.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c index f9b11dadfbdd..50659bd55d7b 100644 --- a/drivers/thunderbolt/path.c +++ b/drivers/thunderbolt/path.c @@ -586,7 +586,7 @@ int tb_path_activate(struct tb_path *path) tb_dbg(path->tb, "%s path activation complete\n", path->name); return 0; err: - tb_WARN(path->tb, "%s path activation failed\n", path->name); + tb_warn(path->tb, "%s path activation failed: %d\n", path->name, res); return res; } =20 --=20 2.43.0