On 31.05.23 19:04, Marco Felsch wrote:
> Hi Ahmad,
>
> On 23-05-31, Ahmad Fatoum wrote:
>> Later code will make it possible to define a on-disk-described partition
>> in the DT as well. For this reason, we can't assumed
>> DEVFS_PARTITION_FROM_TABLE to mean !DT, so let's add a dedicated flag
>> for that.
>>
>> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
>> ---
>> drivers/of/partition.c | 5 +++--
>> fs/fs.c | 2 ++
>> include/driver.h | 5 +++--
>> 3 files changed, 8 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/of/partition.c b/drivers/of/partition.c
>> index a70e503cec9e..15943502ce17 100644
>> --- a/drivers/of/partition.c
>> +++ b/drivers/of/partition.c
>> @@ -74,6 +74,7 @@ struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node)
>> }
>>
>> new->device_node = node;
>> + new->flags |= DEVFS_PARTITION_FROM_OF;
>>
>> if (IS_ENABLED(CONFIG_NVMEM) && of_device_is_compatible(node, "nvmem-cells")) {
>> struct nvmem_device *nvmem = nvmem_partition_register(new);
>> @@ -162,7 +163,7 @@ int of_fixup_partitions(struct device_node *np, struct cdev *cdev)
>> return 0;
>>
>> list_for_each_entry(partcdev, &cdev->partitions, partition_entry) {
>> - if (partcdev->flags & DEVFS_PARTITION_FROM_TABLE)
>> + if (!(partcdev->flags & DEVFS_PARTITION_FROM_OF))
>
> Even though the code is already 'open-coded' I would suggest a macro like:
>
> is_of_partition_cdev() or cdev_is_of_partition().
DEVFS_PARTITION_FROM_OF is set in this file and it's read in this file.
I don't think having an indirection through a helper would bring much
benefit.
>
> Reviewed-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
>
>> continue;
>> n_parts++;
>> }
>> @@ -213,7 +214,7 @@ int of_fixup_partitions(struct device_node *np, struct cdev *cdev)
>> u8 tmp[16 * 16]; /* Up to 64-bit address + 64-bit size */
>> loff_t partoffset;
>>
>> - if (partcdev->flags & DEVFS_PARTITION_FROM_TABLE)
>> + if (!(partcdev->flags & DEVFS_PARTITION_FROM_OF))
>> continue;
>>
>> if (partcdev->mtd)
>> diff --git a/fs/fs.c b/fs/fs.c
>> index 1820e48393af..9d8aab268ca4 100644
>> --- a/fs/fs.c
>> +++ b/fs/fs.c
>> @@ -88,6 +88,8 @@ void cdev_print(const struct cdev *cdev)
>> printf(" fixed-partition");
>> if (cdev->flags & DEVFS_PARTITION_READONLY)
>> printf(" readonly-partition");
>> + if (cdev->flags & DEVFS_PARTITION_FROM_OF)
>> + printf(" of-partition");
>> if (cdev->flags & DEVFS_PARTITION_FROM_TABLE)
>> printf(" table-partition");
>> if (cdev->flags & DEVFS_IS_MCI_MAIN_PART_DEV)
>> diff --git a/include/driver.h b/include/driver.h
>> index 42e513a15603..118d2adb6750 100644
>> --- a/include/driver.h
>> +++ b/include/driver.h
>> @@ -584,8 +584,9 @@ extern struct list_head cdev_list;
>> #define DEVFS_PARTITION_FIXED (1U << 0)
>> #define DEVFS_PARTITION_READONLY (1U << 1)
>> #define DEVFS_IS_CHARACTER_DEV (1U << 3)
>> -#define DEVFS_PARTITION_FROM_TABLE (1U << 4)
>> -#define DEVFS_IS_MCI_MAIN_PART_DEV (1U << 5)
>> +#define DEVFS_IS_MCI_MAIN_PART_DEV (1U << 4)
>> +#define DEVFS_PARTITION_FROM_OF (1U << 5)
>> +#define DEVFS_PARTITION_FROM_TABLE (1U << 6)
>>
>> struct cdev *devfs_add_partition(const char *devname, loff_t offset,
>> loff_t size, unsigned int flags, const char *name);
>> --
>> 2.39.2
>>
>>
>>
>
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