Re: new SGI TIOCX driver in *-mm driver model locking broken

[Paul Jackson <pj@engr.sgi.com>]

Bruce - a related issue that fell out of the previous problem.  I
disabled SGI_TIOCX, with

# CONFIG_SGI_TIOCX is not set

and now 2.6.12-rc1-mm4 doesn't build SN2 because SGI_MBCS is still
enabled in my .config, even after doing 'make oldconfig':

CONFIG_SGI_MBCS=m

The error messages from the build begin with:

drivers/built-in.o(.text+0xa0f62): In function `mbcs_sram_read':
drivers/char/mbcs.c:137: undefined reference to `tiocx_dma_addr'
drivers/built-in.o(.text+0xa1582): In function `mbcs_sram_write':
drivers/char/mbcs.c:90: undefined reference to `tiocx_dma_addr'
drivers/built-in.o(.text+0xa1d62): In function `mbcs_intr_alloc':
drivers/char/mbcs.c:589: undefined reference to `tiocx_irq_alloc'
drivers/built-in.o(.text+0xa1e12):drivers/char/mbcs.c:602: undefined reference to `tiocx_irq_alloc'
drivers/built-in.o(.text+0xa1ec2):drivers/char/mbcs.c:620: undefined reference to `tiocx_irq_alloc'
drivers/built-in.o(.text+0xa1f92):drivers/char/mbcs.c:573: undefined reference to `tiocx_irq_free'
drivers/built-in.o(.text+0xa1fc2):drivers/char/mbcs.c:573: undefined reference to `tiocx_irq_free'

and indeed there are many tiocx references in drivers/char/mbcs.c.

I'm not a CONFIG wizard, but I would suspect that there should be
some sort of dependency in Kconfig, of SGI_MBCS on SGI_TIOCX, so
that I couldn't ask for this bogus config (MBCS on, TIOCX off).

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@engr.sgi.com> 1.650.933.1373, 1.925.600.0401