diff mbox series

[09/17] auxdisplay: Remove flag FBINFO_FLAG_DEFAULT from fbdev drivers

Message ID 20230710130113.14563-10-tzimmermann@suse.de
State Superseded
Headers show
Series fbdev: Remove FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT flags | expand

Commit Message

Thomas Zimmermann July 10, 2023, 12:50 p.m. UTC 
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
not set it.

Flags should signal differences from the default values. After cleaning
up all occurences of FBINFO_FLAG_DEFAULT, the token can be removed.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Robin van der Gracht <robin@protonic.nl>
---
 drivers/auxdisplay/cfag12864bfb.c | 1 -
 drivers/auxdisplay/ht16k33.c      | 1 -
 2 files changed, 2 deletions(-)

Comments

Miguel Ojeda July 10, 2023, 2:24 p.m. UTC | #1 
On Mon, Jul 10, 2023 at 3:01 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
> fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
> not set it.

`framebuffer_alloc()` does indeed use `kzalloc()`, but the docs do not
mention the zeroing. Should that guarantee be documented?

> Flags should signal differences from the default values. After cleaning
> up all occurences of FBINFO_FLAG_DEFAULT, the token can be removed.

occurences -> occurrences

can -> will maybe? Since the intention of the patch series is to
remove it (them) altogether).

Thanks!

Cheers,
Miguel
Thomas Zimmermann July 10, 2023, 3:22 p.m. UTC | #2 
Hi

Am 10.07.23 um 16:24 schrieb Miguel Ojeda:
> On Mon, Jul 10, 2023 at 3:01 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
>> fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
>> not set it.
> 
> `framebuffer_alloc()` does indeed use `kzalloc()`, but the docs do not
> mention the zeroing. Should that guarantee be documented?

I'll append a patch to the series that documents this.

> 
>> Flags should signal differences from the default values. After cleaning
>> up all occurences of FBINFO_FLAG_DEFAULT, the token can be removed.
> 
> occurences -> occurrences
> 
> can -> will maybe? Since the intention of the patch series is to
> remove it (them) altogether).

Sure.

Best regards
Thomas

> 
> Thanks!
> 
> Cheers,
> Miguel
Miguel Ojeda July 10, 2023, 4:25 p.m. UTC | #3 
On Mon, Jul 10, 2023 at 5:22 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> I'll append a patch to the series that documents this.
>
> Sure.

Thanks!

If you are planning to take it into some other tree:

Acked-by: Miguel Ojeda <ojeda@kernel.org>

Otherwise, I can take it into the `auxdisplay` tree.

Cheers,
Miguel
Thomas Zimmermann July 11, 2023, 6:10 a.m. UTC | #4 
Hi

Am 10.07.23 um 18:25 schrieb Miguel Ojeda:
> On Mon, Jul 10, 2023 at 5:22 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> I'll append a patch to the series that documents this.
>>
>> Sure.
> 
> Thanks!
> 
> If you are planning to take it into some other tree:
> 
> Acked-by: Miguel Ojeda <ojeda@kernel.org>

Thanks.

> 
> Otherwise, I can take it into the `auxdisplay` tree.

I'd like to take the patchset into drm-misc. It's part of a larger 
cleanup of the fbdev modules and its interfaces.

Best regards
Thomas

> 
> Cheers,
> Miguel
Miguel Ojeda July 11, 2023, 10:03 a.m. UTC | #5 
On Tue, Jul 11, 2023 at 8:10 AM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> I'd like to take the patchset into drm-misc. It's part of a larger
> cleanup of the fbdev modules and its interfaces.

Sounds good, thanks!

Cheers,
Miguel
diff mbox series

Patch

diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c
index c2cab7e2b126..729845bcc803 100644
--- a/drivers/auxdisplay/cfag12864bfb.c
+++ b/drivers/auxdisplay/cfag12864bfb.c
@@ -79,7 +79,6 @@  static int cfag12864bfb_probe(struct platform_device *device)
 	info->var = cfag12864bfb_var;
 	info->pseudo_palette = NULL;
 	info->par = NULL;
-	info->flags = FBINFO_FLAG_DEFAULT;
 
 	if (register_framebuffer(info) < 0)
 		goto fballoced;
diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index edaf92b7ea77..df3f37651e45 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -646,7 +646,6 @@  static int ht16k33_fbdev_probe(struct device *dev, struct ht16k33_priv *priv,
 	fbdev->info->var = ht16k33_fb_var;
 	fbdev->info->bl_dev = bl;
 	fbdev->info->pseudo_palette = NULL;
-	fbdev->info->flags = FBINFO_FLAG_DEFAULT;
 	fbdev->info->par = priv;
 
 	err = register_framebuffer(fbdev->info);