diff mbox series

dimlib: make DIMLIB a hidden symbol

Message ID 20190920133115.12802-1-uwe@kleine-koenig.org
State Changes Requested
Delegated to: David Miller
Headers show
Series dimlib: make DIMLIB a hidden symbol | expand

Commit Message

Uwe Kleine-König Sept. 20, 2019, 1:31 p.m. UTC
According to Tal Gilboa the only benefit from DIM comes from a driver
that uses it. So it doesn't make sense to make this symbol user visible,
instead all drivers that use it should select it (as is already the case
AFAICT).

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
---
 lib/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Tal Gilboa Sept. 20, 2019, 5:02 p.m. UTC | #1
On 9/20/2019 4:31 PM, Uwe Kleine-König wrote:
> According to Tal Gilboa the only benefit from DIM comes from a driver
> that uses it. So it doesn't make sense to make this symbol user visible,
> instead all drivers that use it should select it (as is already the case
> AFAICT).
> 
> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
> ---
>   lib/Kconfig | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/lib/Kconfig b/lib/Kconfig
> index cc04124ed8f7..9fe8a21fd183 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -555,8 +555,7 @@ config SIGNATURE
>   	  Implementation is done using GnuPG MPI library
>   
>   config DIMLIB
> -	bool "DIM library"
> -	default y
> +	bool
>   	help
>   	  Dynamic Interrupt Moderation library.
>   	  Implements an algorithm for dynamically change CQ moderation values
>
There's a pending series using DIM which didn't add the select clause 
[1]. Arthur, FYI. Other than that LGTM.

[1] https://www.mail-archive.com/netdev@vger.kernel.org/msg314304.html
Randy Dunlap Sept. 20, 2019, 5:41 p.m. UTC | #2
On 9/20/19 10:02 AM, Tal Gilboa wrote:
> On 9/20/2019 4:31 PM, Uwe Kleine-König wrote:
>> According to Tal Gilboa the only benefit from DIM comes from a driver
>> that uses it. So it doesn't make sense to make this symbol user visible,
>> instead all drivers that use it should select it (as is already the case
>> AFAICT).
>>
>> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
>> ---
>>   lib/Kconfig | 3 +--
>>   1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/lib/Kconfig b/lib/Kconfig
>> index cc04124ed8f7..9fe8a21fd183 100644
>> --- a/lib/Kconfig
>> +++ b/lib/Kconfig
>> @@ -555,8 +555,7 @@ config SIGNATURE
>>   	  Implementation is done using GnuPG MPI library
>>   
>>   config DIMLIB
>> -	bool "DIM library"
>> -	default y
>> +	bool
>>   	help
>>   	  Dynamic Interrupt Moderation library.
>>   	  Implements an algorithm for dynamically change CQ moderation values
>>
> There's a pending series using DIM which didn't add the select clause 
> [1]. Arthur, FYI. Other than that LGTM.

That's easy enough to fix.

> [1] https://www.mail-archive.com/netdev@vger.kernel.org/msg314304.html

for the patch:
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Uwe Kleine-König Sept. 20, 2019, 5:58 p.m. UTC | #3
Hello,

On 9/20/19 7:02 PM, Tal Gilboa wrote:
> On 9/20/2019 4:31 PM, Uwe Kleine-König wrote:
>> diff --git a/lib/Kconfig b/lib/Kconfig
>> index cc04124ed8f7..9fe8a21fd183 100644
>> --- a/lib/Kconfig
>> +++ b/lib/Kconfig
>> @@ -555,8 +555,7 @@ config SIGNATURE
>>   	  Implementation is done using GnuPG MPI library
>>   
>>   config DIMLIB
>> -	bool "DIM library"
>> -	default y
>> +	bool
>>   	help
>>   	  Dynamic Interrupt Moderation library.
>>   	  Implements an algorithm for dynamically change CQ moderation values
>>
> There's a pending series using DIM which didn't add the select clause 
> [1]. Arthur, FYI. Other than that LGTM.

IMHO this should be fixed, as otherwise the config with the new code
enabled and DIMLIB disabled will fail to build also without my change.

Best regards
Uwe
Jakub Kicinski Sept. 22, 2019, 3:06 a.m. UTC | #4
On Fri, 20 Sep 2019 15:31:15 +0200, Uwe Kleine-König wrote:
> According to Tal Gilboa the only benefit from DIM comes from a driver
> that uses it. So it doesn't make sense to make this symbol user visible,
> instead all drivers that use it should select it (as is already the case
> AFAICT).
> 
> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
> ---
>  lib/Kconfig | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/lib/Kconfig b/lib/Kconfig
> index cc04124ed8f7..9fe8a21fd183 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -555,8 +555,7 @@ config SIGNATURE
>  	  Implementation is done using GnuPG MPI library
>  
>  config DIMLIB
> -	bool "DIM library"
> -	default y
> +	bool
>  	help
>  	  Dynamic Interrupt Moderation library.
>  	  Implements an algorithm for dynamically change CQ moderation values

Hi Uwe! Looks like in the net tree there is a spelling mistake and
moderation is spelled "modertion":

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/tree/lib/Kconfig#n562

I'm not seeing any patch to fix that anywhere, is it possible you have
some local change in your tree?
Uwe Kleine-König Sept. 23, 2019, 6:18 a.m. UTC | #5
Hello Jakub,

On 9/22/19 5:06 AM, Jakub Kicinski wrote:
> On Fri, 20 Sep 2019 15:31:15 +0200, Uwe Kleine-König wrote:
>> According to Tal Gilboa the only benefit from DIM comes from a driver
>> that uses it. So it doesn't make sense to make this symbol user visible,
>> instead all drivers that use it should select it (as is already the case
>> AFAICT).
>>
>> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
>> ---
>>  lib/Kconfig | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/lib/Kconfig b/lib/Kconfig
>> index cc04124ed8f7..9fe8a21fd183 100644
>> --- a/lib/Kconfig
>> +++ b/lib/Kconfig
>> @@ -555,8 +555,7 @@ config SIGNATURE
>>  	  Implementation is done using GnuPG MPI library
>>  
>>  config DIMLIB
>> -	bool "DIM library"
>> -	default y
>> +	bool
>>  	help
>>  	  Dynamic Interrupt Moderation library.
>>  	  Implements an algorithm for dynamically change CQ moderation values
> 
> Hi Uwe! Looks like in the net tree there is a spelling mistake and
> moderation is spelled "modertion":
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/tree/lib/Kconfig#n562
> 
> I'm not seeing any patch to fix that anywhere, is it possible you have
> some local change in your tree?

I sent a patch[1] for that typo, but at that time wasn't aware that
DIMLIB was relevant for net and so didn't Cc the netdev.

Best regards
Uwe

[1]
https://lore.kernel.org/lkml/20190919210314.22110-1-uwe@kleine-koenig.org/
David Miller Sept. 24, 2019, 2:45 p.m. UTC | #6
From: Uwe Kleine-König <uwe@kleine-koenig.org>
Date: Fri, 20 Sep 2019 15:31:15 +0200

> According to Tal Gilboa the only benefit from DIM comes from a driver
> that uses it. So it doesn't make sense to make this symbol user visible,
> instead all drivers that use it should select it (as is already the case
> AFAICT).
> 
> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>

Since this doesn't apply due to the moderation typo being elsewhere, I'd
really like you to fix up this submission to properly be against 'net'.

Thank you.
Kiyanovski, Arthur Sept. 25, 2019, 7:59 a.m. UTC | #7
> -----Original Message-----
> From: Tal Gilboa <talgi@mellanox.com>
> Sent: Friday, September 20, 2019 8:02 PM
> To: Uwe Kleine-König <uwe@kleine-koenig.org>; Saeed Mahameed
> <saeedm@mellanox.com>; Kiyanovski, Arthur <akiyano@amazon.com>
> Cc: linux-kernel@vger.kernel.org; netdev@vger.kernel.org
> Subject: Re: [PATCH] dimlib: make DIMLIB a hidden symbol
> 
> On 9/20/2019 4:31 PM, Uwe Kleine-König wrote:
> > According to Tal Gilboa the only benefit from DIM comes from a driver
> > that uses it. So it doesn't make sense to make this symbol user visible,
> > instead all drivers that use it should select it (as is already the case
> > AFAICT).
> >
> > Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
> > ---
> >   lib/Kconfig | 3 +--
> >   1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/lib/Kconfig b/lib/Kconfig
> > index cc04124ed8f7..9fe8a21fd183 100644
> > --- a/lib/Kconfig
> > +++ b/lib/Kconfig
> > @@ -555,8 +555,7 @@ config SIGNATURE
> >   	  Implementation is done using GnuPG MPI library
> >
> >   config DIMLIB
> > -	bool "DIM library"
> > -	default y
> > +	bool
> >   	help
> >   	  Dynamic Interrupt Moderation library.
> >   	  Implements an algorithm for dynamically change CQ moderation
> values
> >
> There's a pending series using DIM which didn't add the select clause
> [1]. Arthur, FYI. Other than that LGTM.
> 
> [1] https://www.mail-archive.com/netdev@vger.kernel.org/msg314304.html

Thanks Tal, I missed that.
Geert Uytterhoeven Sept. 30, 2019, 7:34 p.m. UTC | #8
Hi Uwe, Tal,

On Sat, Sep 21, 2019 at 7:50 PM Uwe Kleine-König <uwe@kleine-koenig.org> wrote:
> According to Tal Gilboa the only benefit from DIM comes from a driver
> that uses it. So it doesn't make sense to make this symbol user visible,
> instead all drivers that use it should select it (as is already the case
> AFAICT).
>
> Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>

Thanks for your patch!

> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -555,8 +555,7 @@ config SIGNATURE
>           Implementation is done using GnuPG MPI library
>
>  config DIMLIB
> -       bool "DIM library"
> -       default y
> +       bool
>         help
>           Dynamic Interrupt Moderation library.
>           Implements an algorithm for dynamically change CQ moderation values

Thanks for fixing the first issue!

The second issue is still present: NET_VENDOR_BROADCOM (which defaults
to y, as all other NET_VENDOR_* symbols) should only be a gatekeeper for
the various Broadcom network driver config options, and should not select
DIMLIB.

Cfr. my earlier complaint in
https://lore.kernel.org/linux-rdma/alpine.DEB.2.21.1907021810220.13058@ramsan.of.borg/

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox series

Patch

diff --git a/lib/Kconfig b/lib/Kconfig
index cc04124ed8f7..9fe8a21fd183 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -555,8 +555,7 @@  config SIGNATURE
 	  Implementation is done using GnuPG MPI library
 
 config DIMLIB
-	bool "DIM library"
-	default y
+	bool
 	help
 	  Dynamic Interrupt Moderation library.
 	  Implements an algorithm for dynamically change CQ moderation values