(void*) conversions

Here are a few tips and scripts how to find unnecessary (void*) conversions.

Find (void*) functions

Here's a script that finds all functions returning (void*): attachment:find_voidp_funcs.pl

Example:

./find_voidp_funcs.pl linux-2.6.git/

Finding and removing type conversion on such assignments

Another script has an embedded list of such function names (after the _END_), or can take such names on the commandline: attachment:type-convs.pl

Example:

./type-convs.pl linux-2.6.git kmalloc

The output is a patch that removes these type conversions; the source files are kept unchanged.

(void*) variable assignments

Some kernel structures have variables meant to be private to some driver, normally named "priv" or "private"; these are of type "(void *)", and need not be casted to some other type.

This script returns a patch for such assignments: attachment:voidp_vars.pl

Example:

./voidp_vars.pl linux-2.6.git kmalloc