Re: [PATCH] coccinelle: ifnullfree: add vfree(), kvfree*() functions

2020-09-02 Thread Julia Lawall


On Wed, 2 Sep 2020, Markus Elfring wrote:

> …
> > +++ b/scripts/coccinelle/free/ifnullfree.cocci
> > @@ -20,8 +20,14 @@ expression E;
> >  - if (E != NULL)
> >  (
> >kfree(E);
> > +|
> > +  kvfree(E);
> >  |
> >kfree_sensitive(E);
> > +|
> > +  kvfree_sensitive(E, ...);
> > +|
> > +  vfree(E);
> >  |
> >debugfs_remove(E);
> >  |
>
> Would you ever get into the development mood to move the source code search
> specification “(E);” out of the SmPL disjunction (as it happened for the rule 
> “r”)?
>
>
> > @@ -42,9 +48,10 @@ position p;
> >  @@
> >
> >  * if (E != NULL)
> > -*  
> > \(kfree@p\|kfree_sensitive@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|
> > +*  \(kfree@p\|kvfree@p\|kfree_sensitive@p\|kvfree_sensitive@p\|vfree@p\|
> > +* debugfs_remove@p\|debugfs_remove_recursive@p\|
> >  * usb_free_urb@p\|kmem_cache_destroy@p\|mempool_destroy@p\|
> > -* dma_pool_destroy@p\)(E);
> > +* dma_pool_destroy@p\)(E, ...);
> …
>
> How do you think about to attach the position variable to the opening 
> parenthesis
> instead of each function name?
>
> +* dma_pool_destroy\)(@p E, ...);

While it probably impacts few people, this is a really bad idea for org
mode, because org mode colors the thing that the position variable is
attached to.  Having the ( colored would not be very visible.

But even for report mode, this is probably not a good idea for the rare
case where the function name and the argument list are on different lines.

julia

>
>
> Would the number of function call parameters influence such SmPL code any 
> more?
>
> Regards,
> Markus
>

Re: [PATCH] coccinelle: ifnullfree: add vfree(), kvfree*() functions

2020-09-02 Thread Julia Lawall



On Wed, 2 Sep 2020, Denis Efremov wrote:

> Extend the list of free functions with kvfree(), kvfree_sensitive(),
> vfree().
>
> Signed-off-by: Denis Efremov 

Applied, thanks.

julia

> ---
>  scripts/coccinelle/free/ifnullfree.cocci | 11 +--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/coccinelle/free/ifnullfree.cocci 
> b/scripts/coccinelle/free/ifnullfree.cocci
> index 2045391e36a0..285b92d5c665 100644
> --- a/scripts/coccinelle/free/ifnullfree.cocci
> +++ b/scripts/coccinelle/free/ifnullfree.cocci
> @@ -20,8 +20,14 @@ expression E;
>  - if (E != NULL)
>  (
>kfree(E);
> +|
> +  kvfree(E);
>  |
>kfree_sensitive(E);
> +|
> +  kvfree_sensitive(E, ...);
> +|
> +  vfree(E);
>  |
>debugfs_remove(E);
>  |
> @@ -42,9 +48,10 @@ position p;
>  @@
>
>  * if (E != NULL)
> -*
> \(kfree@p\|kfree_sensitive@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|
> +*\(kfree@p\|kvfree@p\|kfree_sensitive@p\|kvfree_sensitive@p\|vfree@p\|
> +* debugfs_remove@p\|debugfs_remove_recursive@p\|
>  * usb_free_urb@p\|kmem_cache_destroy@p\|mempool_destroy@p\|
> -* dma_pool_destroy@p\)(E);
> +* dma_pool_destroy@p\)(E, ...);
>
>  @script:python depends on org@
>  p << r.p;
> --
> 2.26.2
>
>


[PATCH] coccinelle: ifnullfree: add vfree(), kvfree*() functions

2020-09-01 Thread Denis Efremov
Extend the list of free functions with kvfree(), kvfree_sensitive(),
vfree().

Signed-off-by: Denis Efremov 
---
 scripts/coccinelle/free/ifnullfree.cocci | 11 +--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/scripts/coccinelle/free/ifnullfree.cocci 
b/scripts/coccinelle/free/ifnullfree.cocci
index 2045391e36a0..285b92d5c665 100644
--- a/scripts/coccinelle/free/ifnullfree.cocci
+++ b/scripts/coccinelle/free/ifnullfree.cocci
@@ -20,8 +20,14 @@ expression E;
 - if (E != NULL)
 (
   kfree(E);
+|
+  kvfree(E);
 |
   kfree_sensitive(E);
+|
+  kvfree_sensitive(E, ...);
+|
+  vfree(E);
 |
   debugfs_remove(E);
 |
@@ -42,9 +48,10 @@ position p;
 @@
 
 * if (E != NULL)
-*  
\(kfree@p\|kfree_sensitive@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|
+*  \(kfree@p\|kvfree@p\|kfree_sensitive@p\|kvfree_sensitive@p\|vfree@p\|
+* debugfs_remove@p\|debugfs_remove_recursive@p\|
 * usb_free_urb@p\|kmem_cache_destroy@p\|mempool_destroy@p\|
-* dma_pool_destroy@p\)(E);
+* dma_pool_destroy@p\)(E, ...);
 
 @script:python depends on org@
 p << r.p;
-- 
2.26.2