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SubjectRe: [PATCH] remoteproc: qcom: fix glink dependencies
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On 2/4/21 9:40 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> Building the remoteproc drivers into the kernel while the qcom_glink
> code is in a loadable module results in a link error:
>
> ld.lld: error: undefined symbol: qcom_glink_ssr_notify
>>>> referenced by vmlinux.o:(glink_subdev_unprepare)
>
> Add a Kconfig dependency to avoid this.

So if they're incompatible in that way it's declared in the
header but not defined in the kernel so the link fails.

And at issue is anything that calls qcom_add_glink_subdev(),
which is qcom_q6v5_{adsp,mss,pas,wcss}.c, and those are
selected by CONFIG_QCOM_Q6V5_{ADSP,MSS,PAS,WCSS}.

But I don't see why QCOM_WCNSS_PIL needs the dependency.

Can you explain that? Other that that this looks good
to me (and I'll offer reviewed-by with your response).

Thanks.

-Alex

> Fixes: 8527efc59d45 ("rpmsg: glink: Guard qcom_glink_ssr_notify() with correct config")
> Fixes: 5d1f2e3c8090 ("soc: qcom: glink_ssr: Internalize ssr_notifiers")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/remoteproc/Kconfig | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> index 9e7efe542f69..88488af01fd9 100644
> --- a/drivers/remoteproc/Kconfig
> +++ b/drivers/remoteproc/Kconfig
> @@ -155,6 +155,7 @@ config QCOM_Q6V5_ADSP
> depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> + depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
> select MFD_SYSCON
> select QCOM_PIL_INFO
> select QCOM_MDT_LOADER
> @@ -171,6 +172,7 @@ config QCOM_Q6V5_MSS
> depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> + depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
> select MFD_SYSCON
> select QCOM_MDT_LOADER
> select QCOM_PIL_INFO
> @@ -188,6 +190,7 @@ config QCOM_Q6V5_PAS
> depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> + depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
> select MFD_SYSCON
> select QCOM_PIL_INFO
> select QCOM_MDT_LOADER
> @@ -206,6 +209,7 @@ config QCOM_Q6V5_WCSS
> depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> + depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
> select MFD_SYSCON
> select QCOM_MDT_LOADER
> select QCOM_PIL_INFO
> @@ -238,6 +242,7 @@ config QCOM_WCNSS_PIL
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SMEM
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> + depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
> select QCOM_MDT_LOADER
> select QCOM_PIL_INFO
> select QCOM_RPROC_COMMON
>

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