diff mbox series

linux-next: build failure after merge of the drm-misc tree

Message ID 20191216122331.43c766f1@canb.auug.org.au (mailing list archive)
State New, archived
Headers show
Series linux-next: build failure after merge of the drm-misc tree | expand

Commit Message

Stephen Rothwell Dec. 16, 2019, 1:23 a.m. UTC
Hi all,

After merging the drm-misc tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/gpu/drm/bridge/analogix/analogix-anx6345.c: In function 'anx6345_i2c_probe':
drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:30: error: implicit declaration of function 'i2c_new_dummy' [-Werror=implicit-function-declaration]
  738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
      |                              ^~~~~~~~~~~~~
drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:28: warning: assignment to 'struct i2c_client *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
      |                            ^

Caused by commit

  6aa192698089 ("drm/bridge: Add Analogix anx6345 support")

interacting with commit

  2c2f00ab1641 ("i2c: remove i2c_new_dummy() API")

From Linus' tree.

I have applied the following fix up patch for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 16 Dec 2019 12:11:19 +1100
Subject: [PATCH] drm/bridge: fix up for removal of i2c_new_dummy()

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Daniel Vetter Dec. 17, 2019, 1:19 p.m. UTC | #1
On Mon, Dec 16, 2019 at 12:23:31PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the drm-misc tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> drivers/gpu/drm/bridge/analogix/analogix-anx6345.c: In function 'anx6345_i2c_probe':
> drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:30: error: implicit declaration of function 'i2c_new_dummy' [-Werror=implicit-function-declaration]
>   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
>       |                              ^~~~~~~~~~~~~
> drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:28: warning: assignment to 'struct i2c_client *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
>   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
>       |                            ^
> 
> Caused by commit
> 
>   6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
> 
> interacting with commit
> 
>   2c2f00ab1641 ("i2c: remove i2c_new_dummy() API")
> 
> From Linus' tree.
> 
> I have applied the following fix up patch for today:
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 16 Dec 2019 12:11:19 +1100
> Subject: [PATCH] drm/bridge: fix up for removal of i2c_new_dummy()
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Thanks pulled into drm-next since I just processed the first drm-misc-next
pull.
-Daniel

> ---
>  drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> index 9917ce0d86a0..56f55c53abfd 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> @@ -735,13 +735,13 @@ static int anx6345_i2c_probe(struct i2c_client *client,
>  	/* Map slave addresses of ANX6345 */
>  	for (i = 0; i < I2C_NUM_ADDRESSES; i++) {
>  		if (anx6345_i2c_addresses[i] >> 1 != client->addr)
> -			anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
> +			anx6345->i2c_clients[i] = i2c_new_dummy_device(client->adapter,
>  						anx6345_i2c_addresses[i] >> 1);
>  		else
>  			anx6345->i2c_clients[i] = client;
>  
> -		if (!anx6345->i2c_clients[i]) {
> -			err = -ENOMEM;
> +		if (IS_ERR(anx6345->i2c_clients[i])) {
> +			err = PTR_ERR(anx6345->i2c_clients[i]);
>  			DRM_ERROR("Failed to reserve I2C bus %02x\n",
>  				  anx6345_i2c_addresses[i]);
>  			goto err_unregister_i2c;
> -- 
> 2.24.0
> 
> -- 
> Cheers,
> Stephen Rothwell
Stephen Rothwell Dec. 17, 2019, 8:22 p.m. UTC | #2
Hi Daniel,

On Tue, 17 Dec 2019 14:19:37 +0100 Daniel Vetter <daniel@ffwll.ch> wrote:
>
> On Mon, Dec 16, 2019 at 12:23:31PM +1100, Stephen Rothwell wrote:
> > 
> > After merging the drm-misc tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> > 
> > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c: In function 'anx6345_i2c_probe':
> > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:30: error: implicit declaration of function 'i2c_new_dummy' [-Werror=implicit-function-declaration]
> >   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
> >       |                              ^~~~~~~~~~~~~
> > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:28: warning: assignment to 'struct i2c_client *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
> >   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
> >       |                            ^
> > 
> > Caused by commit
> > 
> >   6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
> > 
> > interacting with commit
> > 
> >   2c2f00ab1641 ("i2c: remove i2c_new_dummy() API")
> > 
> > From Linus' tree.
> > 
> > I have applied the following fix up patch for today:
> > 
> > From: Stephen Rothwell <sfr@canb.auug.org.au>
> > Date: Mon, 16 Dec 2019 12:11:19 +1100
> > Subject: [PATCH] drm/bridge: fix up for removal of i2c_new_dummy()
> > 
> > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>  
> 
> Thanks pulled into drm-next since I just processed the first drm-misc-next
> pull.

Thanks.  For the future, though, merge fixes like this should be part
of the actual merge commit to avoid bisection problems.
Daniel Vetter Dec. 18, 2019, 11:53 a.m. UTC | #3
On Tue, Dec 17, 2019 at 9:22 PM Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Hi Daniel,
>
> On Tue, 17 Dec 2019 14:19:37 +0100 Daniel Vetter <daniel@ffwll.ch> wrote:
> >
> > On Mon, Dec 16, 2019 at 12:23:31PM +1100, Stephen Rothwell wrote:
> > >
> > > After merging the drm-misc tree, today's linux-next build (x86_64
> > > allmodconfig) failed like this:
> > >
> > > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c: In function 'anx6345_i2c_probe':
> > > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:30: error: implicit declaration of function 'i2c_new_dummy' [-Werror=implicit-function-declaration]
> > >   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
> > >       |                              ^~~~~~~~~~~~~
> > > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:738:28: warning: assignment to 'struct i2c_client *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
> > >   738 |    anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
> > >       |                            ^
> > >
> > > Caused by commit
> > >
> > >   6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
> > >
> > > interacting with commit
> > >
> > >   2c2f00ab1641 ("i2c: remove i2c_new_dummy() API")
> > >
> > > From Linus' tree.
> > >
> > > I have applied the following fix up patch for today:
> > >
> > > From: Stephen Rothwell <sfr@canb.auug.org.au>
> > > Date: Mon, 16 Dec 2019 12:11:19 +1100
> > > Subject: [PATCH] drm/bridge: fix up for removal of i2c_new_dummy()
> > >
> > > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> >
> > Thanks pulled into drm-next since I just processed the first drm-misc-next
> > pull.
>
> Thanks.  For the future, though, merge fixes like this should be part
> of the actual merge commit to avoid bisection problems.

I flip flop on this one, between retaining your contribution
explicitly and merging them in. Usually I squash them in, but this
felt substantial enough to retain explicitly. Worst case if someone is
unlucky they need to git bisect skip once. I guess next time I should
do a topic branch, apply it there on top of the pull, and then pull
that in so that it's both pretty history and no bisect hole.
-Daniel
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index 9917ce0d86a0..56f55c53abfd 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -735,13 +735,13 @@  static int anx6345_i2c_probe(struct i2c_client *client,
 	/* Map slave addresses of ANX6345 */
 	for (i = 0; i < I2C_NUM_ADDRESSES; i++) {
 		if (anx6345_i2c_addresses[i] >> 1 != client->addr)
-			anx6345->i2c_clients[i] = i2c_new_dummy(client->adapter,
+			anx6345->i2c_clients[i] = i2c_new_dummy_device(client->adapter,
 						anx6345_i2c_addresses[i] >> 1);
 		else
 			anx6345->i2c_clients[i] = client;
 
-		if (!anx6345->i2c_clients[i]) {
-			err = -ENOMEM;
+		if (IS_ERR(anx6345->i2c_clients[i])) {
+			err = PTR_ERR(anx6345->i2c_clients[i]);
 			DRM_ERROR("Failed to reserve I2C bus %02x\n",
 				  anx6345_i2c_addresses[i]);
 			goto err_unregister_i2c;