Re: [PATCH v4] coccinelle: api: add kzfree script

From: Markus Elfring
Date: Fri Jul 17 2020 - 12:05:26 EST


I dare to repeat previous patch review aspects once more.
https://lore.kernel.org/cocci/a316f076-1686-25d8-18fe-1bbc0cf9a701@xxxxxx/

â
> +virtual context
> +virtual patch
> +virtual org
> +virtual report

+virtual context, patch, org, report

Is such a SmPL code variant more succinct?


â
> +if (...)
> + \(memset@ok\|memzero_explicit@ok\)(...);

Would you like to tolerate any extra source code around such a function call
in an if branch?


â
> +(
> +* memset@m((T)E, 0, ...);
> +|
> +* memzero_explicit@m((T)E, ...);
> +)
â

I suggest to move a semicolon.

+(
+*memset@m((T)E, 0, ...)
+|
+*memzero_explicit@m((T)E, ...)
+);


â
> +- \(kfree\|vfree\|kvfree\)(E);
> ++ kvfree_sensitive(E, size);
â

Would you like to increase the precision a bit for the change specification?

+-\(kfree\|vfree\|kvfree\)
++kvfree_sensitive
+ (E
++ , size
+ );


â
> +(
> +- kfree(E);
> ++ kzfree(E);
> +|
> +- \(vfree\|kvfree\)(E);
> ++ kvfree_sensitive(E, size);
> +)
â

+(
+-kfree
++kzfree
+ (E)
+|
+-\(vfree\|kvfree\)
++kvfree_sensitive
+ (E
++ , size
+ )
+);


â
> +// TODO: uncomment when kfree_sensitive will be merged.
> +// Only this case is commented out because developers
> +// may not like patches like this since kzfree uses memset
> +// internally (not memzero_explicit).

Will this information trigger any further clarification?


â
> +coccilib.org.print_todo(p[0],
> + "WARNING: opportunity for kzfree/kvfree_sensitive")

I propose to align the second function parameter.

+coccilib.org.print_todo(p[0],
+ "WARNING: opportunity for kzfree/kvfree_sensitive")


Regards,
Markus