Re: [PATCH V1] scsi: ufs: Get boot device storage type from command line

From: Chetan Chinnadagudihundi Ravindranath (Consultant) (QUIC)
Date: Thu Jul 28 2022 - 04:35:30 EST


Hi Brat,

Thanks for you response!

Yes, since SCSI_UFSHCD=y am selecting UFS_QCOM_CMDLINE=y so that it gets __setup() declarations. I am able to read the command line arguments and get this "androidboot.bootdevice=" info. I had cross checked again.

Thanks,
Chetan C R

On 7/27/2022 11:16 PM, Bart Van Assche wrote:
On 7/27/22 01:28, Chetan C R wrote:
diff --git a/drivers/ufs/Kconfig b/drivers/ufs/Kconfig
index 90226f7..9d2f84e 100644
--- a/drivers/ufs/Kconfig
+++ b/drivers/ufs/Kconfig
@@ -9,6 +9,7 @@ menuconfig SCSI_UFSHCD
      select PM_DEVFREQ
      select DEVFREQ_GOV_SIMPLE_ONDEMAND
      select NLS
+    select UFS_QCOM_CMDLINE if ARCH_QCOM
      help
        Enables support for UFS (Universal Flash Storage) host controllers.
        A UFS host controller is an electronic component that is able to

[ ... ]

+__setup("androidboot.bootdevice=", get_android_boot_dev_v3);

How can this work since __setup() declarations should occur in the core kernel and since the ufshcd driver can be built as a kernel module?

Thanks,

Bart.