2019-03-27 14:27:04

by Mario Limonciello

[permalink] [raw]
Subject: [PATCH] platform/x86: dell-laptop: fix rfkill functionality

When converting the driver two arguments were transposed leading
to rfkill not working.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201427
Reported-by: Pepijn de Vos <[email protected]>
Fixes: 549b49 ("platform/x86: dell-smbios: Introduce dispatcher for SMM calls")
Signed-off-by: Mario Limonciello <[email protected]>
Acked-by: Pali Rohár <[email protected]>
---
drivers/platform/x86/dell-laptop.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 95e6ca1..a561f65 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -531,7 +531,7 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
return;
}

- dell_fill_request(&buffer, 0, 0x2, 0, 0);
+ dell_fill_request(&buffer, 0x2, 0, 0, 0);
ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);
hwswitch = buffer.output[1];

@@ -562,7 +562,7 @@ static int dell_debugfs_show(struct seq_file *s, void *data)
return ret;
status = buffer.output[1];

- dell_fill_request(&buffer, 0, 0x2, 0, 0);
+ dell_fill_request(&buffer, 0x2, 0, 0, 0);
hwswitch_ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);
if (hwswitch_ret)
return hwswitch_ret;
@@ -647,7 +647,7 @@ static void dell_update_rfkill(struct work_struct *ignored)
if (ret != 0)
return;

- dell_fill_request(&buffer, 0, 0x2, 0, 0);
+ dell_fill_request(&buffer, 0x2, 0, 0, 0);
ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);

if (ret == 0 && (status & BIT(0)))
--
2.7.4



2019-04-03 20:24:37

by Darren Hart

[permalink] [raw]
Subject: Re: [PATCH] platform/x86: dell-laptop: fix rfkill functionality

On Wed, Mar 27, 2019 at 09:25:34AM -0500, Mario Limonciello wrote:
> When converting the driver two arguments were transposed leading
> to rfkill not working.
>
> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201427
> Reported-by: Pepijn de Vos <[email protected]>
> Fixes: 549b49 ("platform/x86: dell-smbios: Introduce dispatcher for SMM calls")
> Signed-off-by: Mario Limonciello <[email protected]>
> Acked-by: Pali Roh?r <[email protected]>

Looks like this broken in 4.14? So Cc stable back to then? I'm surprised it's
been broken that long :-(

--
Darren Hart
VMware Open Source Technology Center

2019-04-03 21:55:26

by Mario Limonciello

[permalink] [raw]
Subject: RE: [PATCH] platform/x86: dell-laptop: fix rfkill functionality

> -----Original Message-----
> From: Darren Hart <[email protected]>
> Sent: Wednesday, April 3, 2019 3:24 PM
> To: Limonciello, Mario
> Cc: Andy Shevchenko; LKML; [email protected]
> Subject: Re: [PATCH] platform/x86: dell-laptop: fix rfkill functionality
>
>
> [EXTERNAL EMAIL]
>
> On Wed, Mar 27, 2019 at 09:25:34AM -0500, Mario Limonciello wrote:
> > When converting the driver two arguments were transposed leading
> > to rfkill not working.
> >
> > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201427
> > Reported-by: Pepijn de Vos <[email protected]>
> > Fixes: 549b49 ("platform/x86: dell-smbios: Introduce dispatcher for SMM calls")
> > Signed-off-by: Mario Limonciello <[email protected]>
> > Acked-by: Pali Roh?r <[email protected]>
>
> Looks like this broken in 4.14? So Cc stable back to then? I'm surprised it's
> been broken that long :-(
>

Not many "newer" platforms actually use this radio control anymore. It's been
superseded by other technologies. So I think that would be the main reason.

Can you CC it to stable when it's committed or do I need to re-send or anything?

2019-04-03 22:04:57

by Darren Hart

[permalink] [raw]
Subject: Re: [PATCH] platform/x86: dell-laptop: fix rfkill functionality

On Wed, Apr 03, 2019 at 09:54:27PM +0000, [email protected] wrote:
> > -----Original Message-----
> > From: Darren Hart <[email protected]>
> > Sent: Wednesday, April 3, 2019 3:24 PM
> > To: Limonciello, Mario
> > Cc: Andy Shevchenko; LKML; [email protected]
> > Subject: Re: [PATCH] platform/x86: dell-laptop: fix rfkill functionality
> >
> >
> > [EXTERNAL EMAIL]
> >
> > On Wed, Mar 27, 2019 at 09:25:34AM -0500, Mario Limonciello wrote:
> > > When converting the driver two arguments were transposed leading
> > > to rfkill not working.
> > >
> > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201427
> > > Reported-by: Pepijn de Vos <[email protected]>
> > > Fixes: 549b49 ("platform/x86: dell-smbios: Introduce dispatcher for SMM calls")
> > > Signed-off-by: Mario Limonciello <[email protected]>
> > > Acked-by: Pali Roh?r <[email protected]>
> >
> > Looks like this broken in 4.14? So Cc stable back to then? I'm surprised it's
> > been broken that long :-(
> >
>
> Not many "newer" platforms actually use this radio control anymore. It's been
> superseded by other technologies. So I think that would be the main reason.
>
> Can you CC it to stable when it's committed or do I need to re-send or anything?
>

I will add the Cc to stable. Just wanted to confirm our expectations were
aligned.

--
Darren Hart
VMware Open Source Technology Center