Messages in this thread | | | Subject | Re: [PATCH 2/2] [v2] qcom_scm: hide Kconfig symbol | From | Alex Elder <> | Date | Tue, 28 Sep 2021 08:29:48 -0500 |
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On 9/28/21 2:50 AM, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@arndb.de> > > Now that SCM can be a loadable module, we have to add another > dependency to avoid link failures when ipa or adreno-gpu are > built-in: > > aarch64-linux-ld: drivers/net/ipa/ipa_main.o: in function `ipa_probe': > ipa_main.c:(.text+0xfc4): undefined reference to `qcom_scm_is_available' > > ld.lld: error: undefined symbol: qcom_scm_is_available >>>> referenced by adreno_gpu.c >>>> gpu/drm/msm/adreno/adreno_gpu.o:(adreno_zap_shader_load) in archive drivers/built-in.a > > This can happen when CONFIG_ARCH_QCOM is disabled and we don't select > QCOM_MDT_LOADER, but some other module selects QCOM_SCM. Ideally we'd > use a similar dependency here to what we have for QCOM_RPROC_COMMON, > but that causes dependency loops from other things selecting QCOM_SCM. > > This appears to be an endless problem, so try something different this > time: > > - CONFIG_QCOM_SCM becomes a hidden symbol that nothing 'depends on' > but that is simply selected by all of its users > > - All the stubs in include/linux/qcom_scm.h can go away > > - arm-smccc.h needs to provide a stub for __arm_smccc_smc() to > allow compile-testing QCOM_SCM on all architectures. > > - To avoid a circular dependency chain involving RESET_CONTROLLER > and PINCTRL_SUNXI, drop the 'select RESET_CONTROLLER' statement. > According to my testing this still builds fine, and the QCOM > platform selects this symbol already. > > Acked-by: Kalle Valo <kvalo@codeaurora.org> > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > Changes in v2: > - drop the 'select RESET_CONTROLLER' line, rather than adding > more of the same > --- > drivers/firmware/Kconfig | 5 +- > drivers/gpu/drm/msm/Kconfig | 4 +- > drivers/iommu/Kconfig | 2 +- > drivers/media/platform/Kconfig | 2 +- > drivers/mmc/host/Kconfig | 2 +- > drivers/net/ipa/Kconfig | 1 +
For drivers/net/ipa/Kconfig, looks good to me. Nice simplification.
Acked-by: Alex Elder <elder@linaro.org>
> drivers/net/wireless/ath/ath10k/Kconfig | 2 +- > drivers/pinctrl/qcom/Kconfig | 3 +- > include/linux/arm-smccc.h | 10 ++++ > include/linux/qcom_scm.h | 71 ------------------------- > 10 files changed, 20 insertions(+), 82 deletions(-) >
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