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* batostr() function
@ 2012-05-07 11:49 ` Johannes Berg
  0 siblings, 0 replies; 13+ messages in thread
From: Johannes Berg @ 2012-05-07 11:49 UTC (permalink / raw)
  To: linux-bluetooth-u79uwXL29TY76Z2rM5mHXA, netdev

Really? 2 static buffers that are used alternately based on a static
variable? How can that possibly be thread-safe? That may work in very
restricted scenarios, but ...

johannes

^ permalink raw reply	[flat|nested] 13+ messages in thread

* batostr() function
@ 2012-05-07 11:49 ` Johannes Berg
  0 siblings, 0 replies; 13+ messages in thread
From: Johannes Berg @ 2012-05-07 11:49 UTC (permalink / raw)
  To: linux-bluetooth, netdev

Really? 2 static buffers that are used alternately based on a static
variable? How can that possibly be thread-safe? That may work in very
restricted scenarios, but ...

johannes


^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-07 11:49 ` Johannes Berg
@ 2012-05-08 13:30     ` David Herrmann
  -1 siblings, 0 replies; 13+ messages in thread
From: David Herrmann @ 2012-05-08 13:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-bluetooth-u79uwXL29TY76Z2rM5mHXA, netdev

Hi Johannes

On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
> Really? 2 static buffers that are used alternately based on a static
> variable? How can that possibly be thread-safe? That may work in very
> restricted scenarios, but ...

Looking at "git blame" it seems the whole function is still from
linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
it, thanks.

> johannes

Regards
David

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
@ 2012-05-08 13:30     ` David Herrmann
  0 siblings, 0 replies; 13+ messages in thread
From: David Herrmann @ 2012-05-08 13:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-bluetooth, netdev

Hi Johannes

On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> Really? 2 static buffers that are used alternately based on a static
> variable? How can that possibly be thread-safe? That may work in very
> restricted scenarios, but ...

Looking at "git blame" it seems the whole function is still from
linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
it, thanks.

> johannes

Regards
David

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 13:30     ` David Herrmann
@ 2012-05-08 14:20         ` Ulisses Furquim
  -1 siblings, 0 replies; 13+ messages in thread
From: Ulisses Furquim @ 2012-05-08 14:20 UTC (permalink / raw)
  To: David Herrmann
  Cc: Johannes Berg, linux-bluetooth-u79uwXL29TY76Z2rM5mHXA, netdev

Hi David,

On Tue, May 8, 2012 at 10:30 AM, David Herrmann
<dh.herrmann-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
> Hi Johannes
>
> On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
> wrote:
> > Really? 2 static buffers that are used alternately based on a static
> > variable? How can that possibly be thread-safe? That may work in very
> > restricted scenarios, but ...
>
> Looking at "git blame" it seems the whole function is still from
> linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> it, thanks.

Thanks for fixing it. I'm sure we haven't noticed but it's still weird
to have it this way. :-/

Regards,

--
Ulisses Furquim
ProFUSION embedded systems
http://profusion.mobi
Mobile: +55 19 9250 0942
Skype: ulissesffs

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
@ 2012-05-08 14:20         ` Ulisses Furquim
  0 siblings, 0 replies; 13+ messages in thread
From: Ulisses Furquim @ 2012-05-08 14:20 UTC (permalink / raw)
  To: David Herrmann; +Cc: Johannes Berg, linux-bluetooth, netdev

Hi David,

On Tue, May 8, 2012 at 10:30 AM, David Herrmann
<dh.herrmann@googlemail.com> wrote:
>
> Hi Johannes
>
> On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net>
> wrote:
> > Really? 2 static buffers that are used alternately based on a static
> > variable? How can that possibly be thread-safe? That may work in very
> > restricted scenarios, but ...
>
> Looking at "git blame" it seems the whole function is still from
> linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> it, thanks.

Thanks for fixing it. I'm sure we haven't noticed but it's still weird
to have it this way. :-/

Regards,

--
Ulisses Furquim
ProFUSION embedded systems
http://profusion.mobi
Mobile: +55 19 9250 0942
Skype: ulissesffs

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 13:30     ` David Herrmann
  (?)
  (?)
@ 2012-05-08 14:25     ` Johannes Berg
  2012-05-08 14:30       ` Andrei Emeltchenko
  -1 siblings, 1 reply; 13+ messages in thread
From: Johannes Berg @ 2012-05-08 14:25 UTC (permalink / raw)
  To: David Herrmann; +Cc: linux-bluetooth, netdev

On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
> Hi Johannes
> 
> On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> > Really? 2 static buffers that are used alternately based on a static
> > variable? How can that possibly be thread-safe? That may work in very
> > restricted scenarios, but ...
> 
> Looking at "git blame" it seems the whole function is still from
> linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> it, thanks.

I was thinking you could use %pM, but it seems BT addresses are stored
the wrong way around for some reason ...

johannes

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 14:25     ` Johannes Berg
@ 2012-05-08 14:30       ` Andrei Emeltchenko
  2012-05-08 17:18           ` Joe Perches
  0 siblings, 1 reply; 13+ messages in thread
From: Andrei Emeltchenko @ 2012-05-08 14:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: David Herrmann, linux-bluetooth, netdev

On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
> On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
> > Hi Johannes
> > 
> > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> > > Really? 2 static buffers that are used alternately based on a static
> > > variable? How can that possibly be thread-safe? That may work in very
> > > restricted scenarios, but ...
> > 
> > Looking at "git blame" it seems the whole function is still from
> > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> > it, thanks.
> 
> I was thinking you could use %pM, but it seems BT addresses are stored
> the wrong way around for some reason ...

This looks like better idea then allocating buffers, we can use swap to
take care about "wrong order".

Best regards 
Andrei Emeltchenko 

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 14:30       ` Andrei Emeltchenko
@ 2012-05-08 17:18           ` Joe Perches
  0 siblings, 0 replies; 13+ messages in thread
From: Joe Perches @ 2012-05-08 17:18 UTC (permalink / raw)
  To: Andrei Emeltchenko
  Cc: Johannes Berg, David Herrmann,
	linux-bluetooth-u79uwXL29TY76Z2rM5mHXA, netdev

On Tue, 2012-05-08 at 17:30 +0300, Andrei Emeltchenko wrote:
> On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
> > On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
> > > Hi Johannes
> > > 
> > > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
> > > > Really? 2 static buffers that are used alternately based on a static
> > > > variable? How can that possibly be thread-safe? That may work in very
> > > > restricted scenarios, but ...
> > > 
> > > Looking at "git blame" it seems the whole function is still from
> > > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> > > it, thanks.
> > 
> > I was thinking you could use %pM, but it seems BT addresses are stored
> > the wrong way around for some reason ...
> 
> This looks like better idea then allocating buffers, we can use swap to
> take care about "wrong order".

https://lkml.org/lkml/2010/12/3/358

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
@ 2012-05-08 17:18           ` Joe Perches
  0 siblings, 0 replies; 13+ messages in thread
From: Joe Perches @ 2012-05-08 17:18 UTC (permalink / raw)
  To: Andrei Emeltchenko; +Cc: Johannes Berg, David Herrmann, linux-bluetooth, netdev

On Tue, 2012-05-08 at 17:30 +0300, Andrei Emeltchenko wrote:
> On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
> > On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
> > > Hi Johannes
> > > 
> > > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> > > > Really? 2 static buffers that are used alternately based on a static
> > > > variable? How can that possibly be thread-safe? That may work in very
> > > > restricted scenarios, but ...
> > > 
> > > Looking at "git blame" it seems the whole function is still from
> > > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> > > it, thanks.
> > 
> > I was thinking you could use %pM, but it seems BT addresses are stored
> > the wrong way around for some reason ...
> 
> This looks like better idea then allocating buffers, we can use swap to
> take care about "wrong order".

https://lkml.org/lkml/2010/12/3/358



^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 17:18           ` Joe Perches
  (?)
@ 2012-05-08 17:48           ` Johannes Berg
       [not found]             ` <1336499313.4320.4.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
  -1 siblings, 1 reply; 13+ messages in thread
From: Johannes Berg @ 2012-05-08 17:48 UTC (permalink / raw)
  To: Joe Perches
  Cc: Andrei Emeltchenko, David Herrmann, linux-bluetooth, netdev,
	Luis R. Rodriguez

On Tue, 2012-05-08 at 10:18 -0700, Joe Perches wrote:
> On Tue, 2012-05-08 at 17:30 +0300, Andrei Emeltchenko wrote:
> > On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
> > > On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
> > > > Hi Johannes
> > > > 
> > > > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> > > > > Really? 2 static buffers that are used alternately based on a static
> > > > > variable? How can that possibly be thread-safe? That may work in very
> > > > > restricted scenarios, but ...
> > > > 
> > > > Looking at "git blame" it seems the whole function is still from
> > > > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
> > > > it, thanks.
> > > 
> > > I was thinking you could use %pM, but it seems BT addresses are stored
> > > the wrong way around for some reason ...
> > 
> > This looks like better idea then allocating buffers, we can use swap to
> > take care about "wrong order".
> 
> https://lkml.org/lkml/2010/12/3/358

Pretty much what I had in mind, thanks. Luis, you'll notice that this
will be a pain to backport in compat. :-)

johannes

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
  2012-05-08 17:48           ` Johannes Berg
@ 2012-05-08 18:26                 ` Luis R. Rodriguez
  0 siblings, 0 replies; 13+ messages in thread
From: Luis R. Rodriguez @ 2012-05-08 18:26 UTC (permalink / raw)
  To: Johannes Berg
  Cc: Joe Perches, Andrei Emeltchenko, David Herrmann,
	linux-bluetooth-u79uwXL29TY76Z2rM5mHXA, netdev

On Tue, May 8, 2012 at 10:48 AM, Johannes Berg
<johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
> On Tue, 2012-05-08 at 10:18 -0700, Joe Perches wrote:
>> On Tue, 2012-05-08 at 17:30 +0300, Andrei Emeltchenko wrote:
>> > On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
>> > > On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
>> > > > Hi Johannes
>> > > >
>> > > > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
>> > > > > Really? 2 static buffers that are used alternately based on a static
>> > > > > variable? How can that possibly be thread-safe? That may work in very
>> > > > > restricted scenarios, but ...
>> > > >
>> > > > Looking at "git blame" it seems the whole function is still from
>> > > > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
>> > > > it, thanks.
>> > >
>> > > I was thinking you could use %pM, but it seems BT addresses are stored
>> > > the wrong way around for some reason ...
>> >
>> > This looks like better idea then allocating buffers, we can use swap to
>> > take care about "wrong order".
>>
>> https://lkml.org/lkml/2010/12/3/358
>
> Pretty much what I had in mind, thanks. Luis, you'll notice that this
> will be a pain to backport in compat. :-)

Mumble grumble. Oh well! :) I'm starting to enjoy the curve balls.

  Luis

^ permalink raw reply	[flat|nested] 13+ messages in thread

* Re: batostr() function
@ 2012-05-08 18:26                 ` Luis R. Rodriguez
  0 siblings, 0 replies; 13+ messages in thread
From: Luis R. Rodriguez @ 2012-05-08 18:26 UTC (permalink / raw)
  To: Johannes Berg
  Cc: Joe Perches, Andrei Emeltchenko, David Herrmann, linux-bluetooth, netdev

On Tue, May 8, 2012 at 10:48 AM, Johannes Berg
<johannes@sipsolutions.net> wrote:
> On Tue, 2012-05-08 at 10:18 -0700, Joe Perches wrote:
>> On Tue, 2012-05-08 at 17:30 +0300, Andrei Emeltchenko wrote:
>> > On Tue, May 08, 2012 at 04:25:08PM +0200, Johannes Berg wrote:
>> > > On Tue, 2012-05-08 at 15:30 +0200, David Herrmann wrote:
>> > > > Hi Johannes
>> > > >
>> > > > On Mon, May 7, 2012 at 1:49 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
>> > > > > Really? 2 static buffers that are used alternately based on a static
>> > > > > variable? How can that possibly be thread-safe? That may work in very
>> > > > > restricted scenarios, but ...
>> > > >
>> > > > Looking at "git blame" it seems the whole function is still from
>> > > > linux-2.4. Looks like no-one ever noticed. I've sent a patchset fixing
>> > > > it, thanks.
>> > >
>> > > I was thinking you could use %pM, but it seems BT addresses are stored
>> > > the wrong way around for some reason ...
>> >
>> > This looks like better idea then allocating buffers, we can use swap to
>> > take care about "wrong order".
>>
>> https://lkml.org/lkml/2010/12/3/358
>
> Pretty much what I had in mind, thanks. Luis, you'll notice that this
> will be a pain to backport in compat. :-)

Mumble grumble. Oh well! :) I'm starting to enjoy the curve balls.

  Luis

^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2012-05-08 18:26 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-07 11:49 batostr() function Johannes Berg
2012-05-07 11:49 ` Johannes Berg
     [not found] ` <1336391383.4325.24.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2012-05-08 13:30   ` David Herrmann
2012-05-08 13:30     ` David Herrmann
     [not found]     ` <CANq1E4QW4vSn_r9C=rirShE+-eyPjRX+b5tpC+mx69Hs6aEYqQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-08 14:20       ` Ulisses Furquim
2012-05-08 14:20         ` Ulisses Furquim
2012-05-08 14:25     ` Johannes Berg
2012-05-08 14:30       ` Andrei Emeltchenko
2012-05-08 17:18         ` Joe Perches
2012-05-08 17:18           ` Joe Perches
2012-05-08 17:48           ` Johannes Berg
     [not found]             ` <1336499313.4320.4.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2012-05-08 18:26               ` Luis R. Rodriguez
2012-05-08 18:26                 ` Luis R. Rodriguez

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