Re: [PATCH 08/13] tpm: Pull everything related to /dev/tpmX into tpm-dev.c

[Jason Gunthorpe <jgunthorpe@obsidianresearch.com>]

On Wed, Oct 02, 2013 at 01:14:18AM +0200, Peter H?we wrote:

> > I botched the makefile changes for the new .c files.
> > 
> > I believe it should be like this:
> > 
> > obj-$(CONFIG_TCG_TPM) += tpm-core.o
> > tpm-core-y := tpm.o tpm-dev.o tpm-sysfs.o
> > 
> > > I added a suitable patch with the appropriate EXPORT_SYMBOL_GPL
> > > declarations to my testing branch. (also see next message)
> > 
> > EXPORT_SYMBOL_GPL is not correct, these are in-module references, not
> > cross module references, and I've deliberately not exported them to
> > prevent drivers from trying to use them inappropriately.

> Of course you're right - I just wanted to get it compile as fast as
> possible ;)

It looks like my solution changes the tpm module name to tpm-core.o.
This should be noted in the commit log:

 In doing so we also change the core tpm module name from 'tpm' to 'tpm-core',
 this is because kbuild does not like it if a multi-file module has a .c
 file of the same name.

Is that OK? It follows the pattern other systems have in the kernel.

If this is not OK, then I think we have to rename tpm.c to tpm-XX.c to
make the build system work.

I've consolidated all the remarks and changes thus far on my github:
 https://github.com/jgunthorpe/linux/commits/tpm-devel
 ec94ce9d29298ba75cec83a136fd841f8da9d528

(plus 1 more untested patch to remove the tpm-bios module)

Jason