In recent versions of GCC (tested just now with GCC 4.2.2), compiling Zaptel 1.4 kernel modules generates a number of warnings like this: warning: passing argument 3 of 'pci_free_consistent' discards qualifiers from pointer target type This happens when a 'volatile unsigned char *' is passed to the 'void *' argument of pci_free_consistent(). Even adding explicit casts to 'unsigned char *' or 'void *' does not eliminate this warning. In GCC 4.2.3 prerelease (as packaged by Debian unstable), this occurs with calls to memset() on these pointers as well. I'm not really sure there's much we can do about this; the pointer *does* point to volatile memory, and it's not really reasonable to have to provide our own version of memset() just to avoid this warning, is it?
