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net: qrtr: fix build problems

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Having multiple loadable modules with the same name cannot work
with modprobe, and having both net/qrtr/smd.ko and drivers/soc/qcom/smd.ko
results in a (somewhat cryptic) build error:

ERROR: "qcom_smd_driver_unregister" [net/qrtr/smd.ko] undefined!
ERROR: "qcom_smd_driver_register" [net/qrtr/smd.ko] undefined!
ERROR: "qcom_smd_set_drvdata" [net/qrtr/smd.ko] undefined!
ERROR: "qcom_smd_send" [net/qrtr/smd.ko] undefined!
ERROR: "qcom_smd_get_drvdata" [net/qrtr/smd.ko] undefined!
ERROR: "qcom_smd_driver_unregister" [drivers/soc/qcom/wcnss_ctrl.ko] undefined!
ERROR: "qcom_smd_driver_register" [drivers/soc/qcom/wcnss_ctrl.ko] undefined!
ERROR: "qcom_smd_set_drvdata" [drivers/soc/qcom/wcnss_ctrl.ko] undefined!
ERROR: "qcom_smd_send" [drivers/soc/qcom/wcnss_ctrl.ko] undefined!
ERROR: "qcom_smd_get_drvdata" [drivers/soc/qcom/wcnss_ctrl.ko] undefined!

Also, the qrtr driver uses the SMD interface and has a Kconfig dependency,
but also allows for compile-testing when SMD is disabled. However, if
with QCOM_SMD=m and COMPILE_TEST=y we can end up with QRTR_SMD=y and
that fails with a related link error.

The changes the dependency so we can still compile-test the driver but
not have it built-in if SMD is a module, to avoid running in the broken
configuration, and changes the Makefile to provide the driver under
a different module name.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: bdabad3e36 ("net: Add Qualcomm IPC router")
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2016-05-13 15:09:58 +02:00 committed by David S. Miller
parent 148bd3a34b
commit a986a05de9
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/qrtr/Kconfig
View File

@ -16,7 +16,7 @@ if QRTR
config QRTR_SMD
tristate "SMD IPC Router channels"
depends on QCOM_SMD || COMPILE_TEST
depends on QCOM_SMD || (COMPILE_TEST && QCOM_SMD=n)
---help---
Say Y here to support SMD based ipcrouter channels. SMD is the
most common transport for IPC Router.

4
net/qrtr/Makefile
View File

@ -1,2 +1,4 @@
obj-$(CONFIG_QRTR) := qrtr.o
obj-$(CONFIG_QRTR_SMD) += smd.o
obj-$(CONFIG_QRTR_SMD) += qrtr-smd.o
qrtr-smd-y := smd.o