From: Tobias Regnery <tobias.regnery@gmail.com>
To: heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Tobias Regnery <tobias.regnery@gmail.com>
Subject: [PATCH] usb: typec: ucsi: fix tracepoint related build error
Date: Mon, 9 Apr 2018 09:55:17 +0200 [thread overview]
Message-ID: <20180409075517.15362-1-tobias.regnery@gmail.com> (raw)
The ucsi driver defines several tracepoints, but the header file with the
tracepoint definition trace.h is only conditionally built depending on
CONFIG_FTRACE.
This leads to the following build error with CONFIG_FTRACE=n and
CONFIG_TYPEC_UCSI=m:
ERROR: "__tracepoint_ucsi_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_register_port" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_notify" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_reset_ppm" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_run_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_ack" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_connector_change" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
With CONFIG_TYPEC_UCSI=y the build fails with several link errors.
Fix this by changing the Makefile to unconditionally build trace.o.
Tracepints are a runtime contruct and no other user of tracepoints depends
on CONFIG_FTRACE.
Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
---
drivers/usb/typec/ucsi/Makefile | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/usb/typec/ucsi/Makefile b/drivers/usb/typec/ucsi/Makefile
index b57891c1fd31..971befbbc2a8 100644
--- a/drivers/usb/typec/ucsi/Makefile
+++ b/drivers/usb/typec/ucsi/Makefile
@@ -3,8 +3,6 @@ CFLAGS_trace.o := -I$(src)
obj-$(CONFIG_TYPEC_UCSI) += typec_ucsi.o
-typec_ucsi-y := ucsi.o
-
-typec_ucsi-$(CONFIG_FTRACE) += trace.o
+typec_ucsi-y := ucsi.o trace.o
obj-$(CONFIG_UCSI_ACPI) += ucsi_acpi.o
--
2.16.3
next reply other threads:[~2018-04-09 7:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-09 7:55 Tobias Regnery [this message]
2018-04-09 10:01 ` Heikki Krogerus
2018-04-09 11:40 ` Tobias Regnery
2018-04-10 7:39 ` Heikki Krogerus
2018-04-10 8:05 ` Tobias Regnery
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