linux-kernel - Re: [PATCH] soc: qcom: QCOM_RPMH fix build with modular QCOM

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Date:   Wed, 28 Oct 2020 10:43:21 +0100
From:   Anders Roxell <anders.roxell@...aro.org>
To:     Lina Iyer <ilina@...eaurora.org>
Cc:     agross@...nel.org, Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-msm@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        mkshah@...eaurora.org
Subject: Re: [PATCH] soc: qcom: QCOM_RPMH fix build with modular QCOM_RPMH

On Tue, 27 Oct 2020 at 22:15, Lina Iyer <ilina@...eaurora.org> wrote:
>
> Hi Anders,
>
> On Tue, Oct 27 2020 at 05:14 -0600, Anders Roxell wrote:
> >When building allmodconfig leading to the following link error with
> >CONFIG_QCOM_RPMH=y and CONFIG_QCOM_COMMAND_DB=m:
> >
> >aarch64-linux-gnu-ld: drivers/clk/qcom/clk-rpmh.o: in function `clk_rpmh_probe':
> >  drivers/clk/qcom/clk-rpmh.c:474: undefined reference to `cmd_db_read_addr'
> >  drivers/clk/qcom/clk-rpmh.c:474:(.text+0x254): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `cmd_db_read_addr'
> >
> >Fix this by adding a Kconfig depenency and forcing QCOM_RPMH to be a
> >module when QCOM_COMMAND_DB is a module. Also removing the dependency on
> >'ARCH_QCOM || COMPILE_TEST' since that is already a dependency for
> >QCOM_COMMAND_DB.
> >
> >Fixes: 778279f4f5e4 ("soc: qcom: cmd-db: allow loading as a module")
> >Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
> >---
> > drivers/soc/qcom/Kconfig | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
> >index 9b4ae9c16ba7..3bdd1604f78f 100644
> >--- a/drivers/soc/qcom/Kconfig
> >+++ b/drivers/soc/qcom/Kconfig
> >@@ -109,7 +109,7 @@ config QCOM_RMTFS_MEM
> >
> > config QCOM_RPMH
> >       tristate "Qualcomm RPM-Hardened (RPMH) Communication"
> >-      depends on ARCH_QCOM || COMPILE_TEST
> >+      depends on QCOM_COMMAND_DB
> A solution was posted in the mailing list alredy -
> https://lore.kernel.org/linux-arm-msm/20201008040907.7036-1-ilina@codeaurora.org/

I missed that one, thanks.

>
> If you get a chance, please give that a shot to see if that works for
> you.

That will work too, but the "depends on ARCH_QCOM || COMPILE_TEST"
isn't needed since that is already the dependency for QCOM_COMMAND_DB.
So that should be met here too or am I missing something?

Cheers,
Anders

>
> Thanks,
> Lina
>
> >       help
> >         Support for communication with the hardened-RPM blocks in
> >         Qualcomm Technologies Inc (QTI) SoCs. RPMH communication uses an
> >--
> >2.28.0
> >