PCMCIA PATCHES: rsrc_mgr.c

I have three patches which I'm intending pushing to Linus tonight. They are:

http://patches.arm.linux.org.uk/pcmcia/pcmcia-20030615-1.diff

Remove the racy check_mem_resource() function. Instead, claim the region while we check it, passing a resource structure to the core validation functions.

http://patches.arm.linux.org.uk/pcmcia/pcmcia-20030615-2.diff

We must always allocate windows below 1MB when a socket driver indicates that it does not have "page registers". Handle this case in rsrc_mgr.c within find_mem_region rather than each use of find_mem_region().

http://patches.arm.linux.org.uk/pcmcia/pcmcia-20030615-3.diff

Turn the resource management on its head. Rather than using PCMCIA's resource database as the primary object to allocate resources, use Linux's standard resource allocation instead.

When we have a socket on a PCI bus, we always use the PCI resource allocation functions rather than the kernels core resource allocation, so that we can take account of any bridges.

The first two should be mostly harmless. The third patch needs greater testing. Unfortunately, the PCI groundwork for this patch was recently reversed, so I just can't be bothered to separate out that change again from the other PCI changes I have. You basically need to make the function non-static, add a declaration to include/linux/pci.h and re-export it.

Russell King ([email protected])                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html