2024-04-09 20:22:17

by William McVicker

[permalink] [raw]
Subject: [PATCH v1] scsi: ufs: exynos: Support module autoloading

Export the module alias information using the MODULE_DEVICE_TABLE()
macro in order to support auto-loading this module for devices that
support it.

$ modinfo -F alias out/linux/drivers/ufs/host/ufs-exynos.ko
of:N*T*Ctesla,fsd-ufsC*
of:N*T*Ctesla,fsd-ufs
of:N*T*Csamsung,exynosautov9-ufs-vhC*
of:N*T*Csamsung,exynosautov9-ufs-vh
of:N*T*Csamsung,exynosautov9-ufsC*
of:N*T*Csamsung,exynosautov9-ufs
of:N*T*Csamsung,exynos7-ufsC*
of:N*T*Csamsung,exynos7-ufs

Signed-off-by: Will McVicker <[email protected]>
---
drivers/ufs/host/ufs-exynos.c | 1 +
1 file changed, 1 insertion(+)

Note, I tested this on a Pixel 6 device with the UFS patch series in
[1]. With both this patch and [1], the ufs-exynos module autoloads on
boot.

[1] https://lore.kernel.org/all/[email protected]/

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 734d40f99e31..1795860a2f06 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1748,6 +1748,7 @@ static const struct of_device_id exynos_ufs_of_match[] = {
.data = &fsd_ufs_drvs },
{},
};
+MODULE_DEVICE_TABLE(of, exynos_ufs_of_match);

static const struct dev_pm_ops exynos_ufs_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)

base-commit: 2c71fdf02a95b3dd425b42f28fd47fb2b1d22702
--
2.44.0.683.g7961c838ac-goog



2024-04-09 20:33:01

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH v1] scsi: ufs: exynos: Support module autoloading

On 09/04/2024 22:22, Will McVicker wrote:
> Export the module alias information using the MODULE_DEVICE_TABLE()
> macro in order to support auto-loading this module for devices that
> support it.
>
> $ modinfo -F alias out/linux/drivers/ufs/host/ufs-exynos.ko
> of:N*T*Ctesla,fsd-ufsC*
> of:N*T*Ctesla,fsd-ufs
> of:N*T*Csamsung,exynosautov9-ufs-vhC*
> of:N*T*Csamsung,exynosautov9-ufs-vh
> of:N*T*Csamsung,exynosautov9-ufsC*
> of:N*T*Csamsung,exynosautov9-ufs
> of:N*T*Csamsung,exynos7-ufsC*
> of:N*T*Csamsung,exynos7-ufs

That part is redundant, you just copied result of of_device_id. No need
to resend just for this.

Reviewed-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof


2024-04-09 20:41:46

by William McVicker

[permalink] [raw]
Subject: Re: [PATCH v1] scsi: ufs: exynos: Support module autoloading

On 04/09/2024, Krzysztof Kozlowski wrote:
> On 09/04/2024 22:22, Will McVicker wrote:
> > Export the module alias information using the MODULE_DEVICE_TABLE()
> > macro in order to support auto-loading this module for devices that
> > support it.
> >
> > $ modinfo -F alias out/linux/drivers/ufs/host/ufs-exynos.ko
> > of:N*T*Ctesla,fsd-ufsC*
> > of:N*T*Ctesla,fsd-ufs
> > of:N*T*Csamsung,exynosautov9-ufs-vhC*
> > of:N*T*Csamsung,exynosautov9-ufs-vh
> > of:N*T*Csamsung,exynosautov9-ufsC*
> > of:N*T*Csamsung,exynosautov9-ufs
> > of:N*T*Csamsung,exynos7-ufsC*
> > of:N*T*Csamsung,exynos7-ufs
>
> That part is redundant, you just copied result of of_device_id. No need
> to resend just for this.

Well the point of including this snippet is to show that it's working.
Without this patch, `modinfo -F alias ufs-exynos.ko` doesn't return
anything. I'm fine with not including it either way though.

Thanks,
Will

>
> Reviewed-by: Krzysztof Kozlowski <[email protected]>
>
> Best regards,
> Krzysztof
>

2024-04-12 01:56:45

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH v1] scsi: ufs: exynos: Support module autoloading


Will,

> Export the module alias information using the MODULE_DEVICE_TABLE()
> macro in order to support auto-loading this module for devices that
> support it.

Applied to 6.10/scsi-staging, thanks!

--
Martin K. Petersen Oracle Linux Engineering

2024-04-25 01:57:59

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH v1] scsi: ufs: exynos: Support module autoloading

On Tue, 09 Apr 2024 13:22:02 -0700, Will McVicker wrote:

> Export the module alias information using the MODULE_DEVICE_TABLE()
> macro in order to support auto-loading this module for devices that
> support it.
>
> $ modinfo -F alias out/linux/drivers/ufs/host/ufs-exynos.ko
> of:N*T*Ctesla,fsd-ufsC*
> of:N*T*Ctesla,fsd-ufs
> of:N*T*Csamsung,exynosautov9-ufs-vhC*
> of:N*T*Csamsung,exynosautov9-ufs-vh
> of:N*T*Csamsung,exynosautov9-ufsC*
> of:N*T*Csamsung,exynosautov9-ufs
> of:N*T*Csamsung,exynos7-ufsC*
> of:N*T*Csamsung,exynos7-ufs
>
> [...]

Applied to 6.10/scsi-queue, thanks!

[1/1] scsi: ufs: exynos: Support module autoloading
https://git.kernel.org/mkp/scsi/c/2810702f2cbc

--
Martin K. Petersen Oracle Linux Engineering