| Message ID | 20241107114712.538976-3-heiko@sntech.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Drivers to support the MCU on QNAP NAS devices | expand |
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index e8bcad641d8c..faeea7abd688 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -72,7 +72,7 @@ struct mfd_cell { int (*resume)(struct platform_device *dev); /* platform data passed to the sub devices drivers */ - void *platform_data; + const void *platform_data; size_t pdata_size; /* Matches ACPI */
The content of the platform_data of a struct mfd_cell is simply passed on to the platform_device_add_data() call in mfd_add_device() . platform_device_add_data() already handles the data behind that pointer as const and also uses kmemdup to create a copy of the data before handing that copy over to the newly created platform-device, so there is no reason to not extend this to struct mfd_cell, as the old copy in the mfd_cell will be stale anyway. This allows to pass structs gathered from of_device_get_match_data() as platform-data to sub-devices - which is retrieved as const already. Signed-off-by: Heiko Stuebner <heiko@sntech.de> --- include/linux/mfd/core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)