Hi John,

Thanks for the patch.

On 11/21/2020 12:03 PM, John Stultz wrote:
The kernel test robot reported the following build error:

All errors (new ones prefixed by >>):

    xtensa-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function 
`rpmh_regulator_vrm_get_voltage_sel':
    qcom-rpmh-regulator.c:(.text+0x270): undefined reference to `rpmh_write'
    xtensa-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function 
`rpmh_regulator_send_request':
    qcom-rpmh-regulator.c:(.text+0x2f2): undefined reference to `rpmh_write'
    xtensa-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function 
`rpmh_regulator_vrm_get_voltage_sel':
qcom-rpmh-regulator.c:(.text+0x274): undefined reference to `rpmh_write_async'
    xtensa-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function 
`rpmh_regulator_send_request':
    qcom-rpmh-regulator.c:(.text+0x2fc): undefined reference to 
`rpmh_write_async'

Which is due to REGULATOR_QCOM_RPMH depending on
QCOM_RPMH || COMPILE_TEST. The problem is that QOM_RPMH can now
be a module, which in that case requires REGULATOR_QCOM_RPMH=m
to build.

However, if COMPILE_TEST is enabled, REGULATOR_QCOM_RPMH can be
set to =y while REGULATOR_QCOM_RPMH=m which will cause build
failures.
Seems typo here, you mean to say, REGULATOR_QCOM_RPMH can be set to =y while QCOM_RPMH=m....

The easy fix here is to remove COMPILE_TEST.

As config QCOM_RPMH also has COMPILE_TEST, i don't see why it should be removed from REGULATOR_QCOM_RPMH.

Can REGULATOR_QCOM_RPMH have depends on ARCH_QCOM set similar to QCOM_RPMH? As test bot reported build errors on other ARCH with regulatore driver of QCOM arch.

Thanks,
Maulik


Feedback would be appreciated!

Cc: Todd Kjos <[email protected]>
Cc: Saravana Kannan <[email protected]>
Cc: Andy Gross <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Rajendra Nayak <[email protected]>
Cc: Maulik Shah <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: [email protected]
Reported-by: kernel test robot <[email protected]>
Signed-off-by: John Stultz <[email protected]>
---
  drivers/regulator/Kconfig | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 020a00d6696b..9e4fc73ed5a1 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -843,7 +843,7 @@ config REGULATOR_QCOM_RPM
config REGULATOR_QCOM_RPMH
        tristate "Qualcomm Technologies, Inc. RPMh regulator driver"
-       depends on QCOM_RPMH || COMPILE_TEST
+       depends on QCOM_RPMH
        help
          This driver supports control of PMIC regulators via the RPMh hardware
          block found on Qualcomm Technologies Inc. SoCs.  RPMh regulator

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