2016-04-24 02:45:55

by Paul Gortmaker

[permalink] [raw]
Subject: [PATCH v2] lib: make sg_pool tristate instead of bool

The recently added Kconfig controlling compilation of this code is:

lib/Kconfig:config SG_POOL
lib/Kconfig: def_bool n

...meaning that it currently is not being built as a module by anyone,
and that tripped my audit looking for modular code that is essentially
orphaned (i.e. module_exit, and .remove fcns in non-modular drivers.)

In the following discussion, Ming Lin indicated that the original
intention was to have it tristate, so here we convert it accordingly.

Also fix up a couple spelling issues that appear in the surrounding
patch context.

Cc: Christoph Hellwig <[email protected]>
Cc: Ming Lin <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Martin K. Petersen <[email protected]>
Signed-off-by: Paul Gortmaker <[email protected]>
---

[v2: drop modular code removal patch in favour of supporting a modular
build via a one line Kconfig patch as per Ming's comments. Build tested
for allmodconfig on ARM and x86-64 on linux-next. ]

lib/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index e04f168f8f42..8de5868804b5 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -528,13 +528,13 @@ config SG_SPLIT
help
Provides a helper to split scatterlists into chunks, each chunk being
a scatterlist. This should be selected by a driver or an API which
- whishes to split a scatterlist amongst multiple DMA channels.
+ wishes to split a scatterlist amongst multiple DMA channels.

config SG_POOL
- def_bool n
+ def_tristate n
help
Provides a helper to allocate chained scatterlists. This should be
- selected by a driver or an API which whishes to allocate chained
+ selected by a driver or an API which wishes to allocate chained
scatterlist.

#
--
2.8.0


2016-04-24 03:30:36

by Ming Lin

[permalink] [raw]
Subject: Re: [PATCH v2] lib: make sg_pool tristate instead of bool

On Sat, Apr 23, 2016 at 7:44 PM, Paul Gortmaker
<[email protected]> wrote:
> The recently added Kconfig controlling compilation of this code is:
>
> lib/Kconfig:config SG_POOL
> lib/Kconfig: def_bool n
>
> ...meaning that it currently is not being built as a module by anyone,
> and that tripped my audit looking for modular code that is essentially
> orphaned (i.e. module_exit, and .remove fcns in non-modular drivers.)
>
> In the following discussion, Ming Lin indicated that the original
> intention was to have it tristate, so here we convert it accordingly.
>
> Also fix up a couple spelling issues that appear in the surrounding
> patch context.
>
> Cc: Christoph Hellwig <[email protected]>
> Cc: Ming Lin <[email protected]>
> Cc: Sagi Grimberg <[email protected]>
> Cc: Martin K. Petersen <[email protected]>
> Signed-off-by: Paul Gortmaker <[email protected]>
> ---
>
> [v2: drop modular code removal patch in favour of supporting a modular
> build via a one line Kconfig patch as per Ming's comments. Build tested
> for allmodconfig on ARM and x86-64 on linux-next. ]
>
> lib/Kconfig | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/lib/Kconfig b/lib/Kconfig
> index e04f168f8f42..8de5868804b5 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -528,13 +528,13 @@ config SG_SPLIT
> help
> Provides a helper to split scatterlists into chunks, each chunk being
> a scatterlist. This should be selected by a driver or an API which
> - whishes to split a scatterlist amongst multiple DMA channels.
> + wishes to split a scatterlist amongst multiple DMA channels.
>
> config SG_POOL
> - def_bool n
> + def_tristate n
> help
> Provides a helper to allocate chained scatterlists. This should be
> - selected by a driver or an API which whishes to allocate chained
> + selected by a driver or an API which wishes to allocate chained
> scatterlist.
>
> #

Looks good.

Acked-by: Ming Lin <[email protected]>

Thanks.

2016-04-27 23:54:37

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH v2] lib: make sg_pool tristate instead of bool

>>>>> "Paul" == Paul Gortmaker <[email protected]> writes:

Paul> The recently added Kconfig controlling compilation of this code
Paul> is: lib/Kconfig:config SG_POOL lib/Kconfig: def_bool n

Paul> ...meaning that it currently is not being built as a module by
Paul> anyone, and that tripped my audit looking for modular code that is
Paul> essentially orphaned (i.e. module_exit, and .remove fcns in
Paul> non-modular drivers.)

Paul> In the following discussion, Ming Lin indicated that the original
Paul> intention was to have it tristate, so here we convert it
Paul> accordingly.

Paul> Also fix up a couple spelling issues that appear in the
Paul> surrounding patch context.

Somebody please review...

--
Martin K. Petersen Oracle Linux Engineering

2016-04-28 06:51:57

by Christoph Hellwig

[permalink] [raw]
Subject: Re: [PATCH v2] lib: make sg_pool tristate instead of bool

On Wed, Apr 27, 2016 at 07:54:19PM -0400, Martin K. Petersen wrote:
> Somebody please review...

The patch is useless, we should just ignore it.

2016-04-30 19:59:09

by Paul Gortmaker

[permalink] [raw]
Subject: Re: [PATCH v2] lib: make sg_pool tristate instead of bool

[Re: [PATCH v2] lib: make sg_pool tristate instead of bool] On 28/04/2016 (Thu 08:51) Christoph Hellwig wrote:

> On Wed, Apr 27, 2016 at 07:54:19PM -0400, Martin K. Petersen wrote:
> > Somebody please review...
>
> The patch is useless, we should just ignore it.

I'll be the 1st to admit the patch isn't rocket science, but I'm missing
why it warrants a blanket "ignore" status. If we have dead code or a
disconnect between Kconfig and source, to me that seems worth fixing.

Not looking to start a debate; just hoping to understand what I missed.

Thanks,
Paul.
--