From: Frank Rowand <frank.rowand@sony.com> [ Upstream commit 54c2678cd198f61555796bbda5e1727e6e1858f1 ] Problem: ab460a2e72da ("rpmsg: qcom_smd: Access APCS through mailbox framework" added a "depends on MAILBOX") to RPMSG_QCOM_SMD, thus RPMSG_QCOM_SMD becomes unset since MAILBOX was not enabled in qcom_defconfig and is not otherwise selected for the dragonboard. When the resulting kernel is booted the mmc device which contains the root file system is not available. Fix: add CONFIG_MAILBOX to qcom_defconfig Fixes: ab460a2e72da ("rpmsg: qcom_smd: Access APCS through mailbox framework" added a "depends on MAILBOX") Signed-off-by: Frank Rowand <frank.rowand@sony.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- arch/arm/configs/qcom_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/qcom_defconfig b/arch/arm/configs/qcom_defconfig index 6aa7046..bd6440f 100644 --- a/arch/arm/configs/qcom_defconfig +++ b/arch/arm/configs/qcom_defconfig @@ -207,6 +207,7 @@ CONFIG_MSM_MMCC_8974=y CONFIG_MSM_IOMMU=y CONFIG_HWSPINLOCK=y CONFIG_HWSPINLOCK_QCOM=y +CONFIG_MAILBOX=y CONFIG_REMOTEPROC=y CONFIG_QCOM_ADSP_PIL=y CONFIG_QCOM_Q6V5_PIL=y -- 1.8.3