On 16/12/20 10:16 pm, Bean Huo wrote:
> On Wed, 2020-12-16 at 20:51 +0200, Adrian Hunter wrote:
>> ufshcd_variant_hba_exit(hba);
>> ufshcd_setup_vreg(hba, false);
>> ufshcd_suspend_clkscaling(hba);
>> @@ -9436,6 +9441,20 @@ int ufshcd_init(struct ufs_hba *hba, void
>> __iomem *mmio_base, unsigned int irq)
>> }
>> EXPORT_SYMBOL_GPL(ufshcd_init);
>>
>> +static int __init ufshcd_core_init(void)
>> +{
>> + ufs_debugfs_init();
>> + return 0;
>> +}
>> +
>> +static void __exit ufshcd_core_exit(void)
>> +{
>> + ufs_debugfs_exit();
>> +}
>
> Hi, Adrian
Thanks for looking at the patch.
>
> The purpose of patch is acceptable, but I don't know why you choose
> using ufshcd_core_* here.
Do you mean you would like a different function name? 'ufshcd_init' is used
already. The module is called ufshcd-core, so ufshcd_core_* seems appropriate.
> Also. I don't know if module_init() is a proper way here.
Can you be more specific? It is normal to do module initialization in
module_init().
However I do see a problem. When builtin, initcalls are ordered according
to link order, but the Makefile does not have ufshcd-core at the top i.e.
$ cat drivers/scsi/ufs/Makefile
# SPDX-License-Identifier: GPL-2.0
# UFSHCD makefile
obj-$(CONFIG_SCSI_UFS_DWC_TC_PCI) += tc-dwc-g210-pci.o ufshcd-dwc.o
tc-dwc-g210.o
obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o
tc-dwc-g210.o
obj-$(CONFIG_SCSI_UFS_CDNS_PLATFORM) += cdns-pltfrm.o
obj-$(CONFIG_SCSI_UFS_QCOM) += ufs_qcom.o
ufs_qcom-y += ufs-qcom.o
ufs_qcom-$(CONFIG_SCSI_UFS_CRYPTO) += ufs-qcom-ice.o
obj-$(CONFIG_SCSI_UFS_EXYNOS) += ufs-exynos.o
obj-$(CONFIG_SCSI_UFSHCD) += ufshcd-core.o
ufshcd-core-y += ufshcd.o ufs-sysfs.o
ufshcd-core-$(CONFIG_DEBUG_FS) += ufs-debugfs.o
ufshcd-core-$(CONFIG_SCSI_UFS_BSG) += ufs_bsg.o
ufshcd-core-$(CONFIG_SCSI_UFS_CRYPTO) += ufshcd-crypto.o
obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
obj-$(CONFIG_SCSI_UFSHCD_PLATFORM) += ufshcd-pltfrm.o
obj-$(CONFIG_SCSI_UFS_HISI) += ufs-hisi.o
obj-$(CONFIG_SCSI_UFS_MEDIATEK) += ufs-mediatek.o
obj-$(CONFIG_SCSI_UFS_TI_J721E) += ti-j721e-ufs.o
Should be:
# SPDX-License-Identifier: GPL-2.0
# UFSHCD makefile
# Order here is important. ufshcd-core must initialize first.
ufshcd-core-y += ufshcd.o ufs-sysfs.o
ufshcd-core-$(CONFIG_DEBUG_FS) += ufs-debugfs.o
ufshcd-core-$(CONFIG_SCSI_UFS_BSG) += ufs_bsg.o
ufshcd-core-$(CONFIG_SCSI_UFS_CRYPTO) += ufshcd-crypto.o
obj-$(CONFIG_SCSI_UFS_DWC_TC_PCI) += tc-dwc-g210-pci.o ufshcd-dwc.o
tc-dwc-g210.o
obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o
tc-dwc-g210.o
obj-$(CONFIG_SCSI_UFS_CDNS_PLATFORM) += cdns-pltfrm.o
obj-$(CONFIG_SCSI_UFS_QCOM) += ufs_qcom.o
ufs_qcom-y += ufs-qcom.o
ufs_qcom-$(CONFIG_SCSI_UFS_CRYPTO) += ufs-qcom-ice.o
obj-$(CONFIG_SCSI_UFS_EXYNOS) += ufs-exynos.o
obj-$(CONFIG_SCSI_UFSHCD) += ufshcd-core.o
obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
obj-$(CONFIG_SCSI_UFSHCD_PLATFORM) += ufshcd-pltfrm.o
obj-$(CONFIG_SCSI_UFS_HISI) += ufs-hisi.o
obj-$(CONFIG_SCSI_UFS_MEDIATEK) += ufs-mediatek.o
obj-$(CONFIG_SCSI_UFS_TI_J721E) += ti-j721e-ufs.o
What do you think?
>
> thanks,
> Bean
>
>>
>> n
>> +
>> +module_init(ufshcd_core_init);
>> +module_exit(ufshcd_core_exit)
>
